bitcoin.conf - What are pros and cons of txindex option ...
bitcoin core - How do I set 'txindex = 1' in bitcoincore ...
bitcoin/bitcoin.conf at master · bitcoin/bitcoin · GitHub
ElectrumX and bitcoin.conf txindex=1
I've set up an electrumx server and let it sync all blocks without setting txindex=1 in my bitcoin.conf file. Now, I'm obviously realizing my mistake as my wallet is missing transactions. if I were to go and set txindex=1 and reindex my full node, do I need to do anything on the electrumx side of things to also resync it's blocks?
Edit: solved! Just needed to wait for indexing to catch up Hi all I'm trying to use btc-rpc-explorer https://github.com/janoside/btc-rpc-explorer I have a full node via bitcoin qt. Can I use qt for block explorer? I launch block explorer and I'm getting rpc error. The webpage states "check rpc connection info" The github project states I need server=1 and txindex=1. Can I make qt run with these settings? I tried adding them to the .conf but how can I confirm qt is running with these options, in console somehow? In case I can't use qt for this I downloaded bitcoind. It looks like I can start the daemon with txindex=1 and server=1 but still getting same connection problem with btc-rpc-explorer. Do I have to do -reindex=1? Can I do that within qt? If not and I use bitcoin cli will it disrupt qt in any way? Thanks Edit: this is on Ubuntu
Connecting Eclair to Bitcoin Core | Code: -5 error
Hello I am having trouble getting eclair to connect to my full node. im running eclair 0.3.4 and bitcoin core 0.19.1 (i was running 0.19.01 but updated when i saw the "Current number of transactions" said N/A in the information window) I launch eclair-node-gui while bitcoin core is running (core is synced and has been running for an hour so mempool will be filled) Core says transactions are about 6k and memory usage is ~12MB However, I get error code: -5 on eclair: Error: NO such mempool transaction. Blockchain transactions are still in the process of being indexed. Use gettransaction for wallet transactions. I have txindex=1 in the conf of core. ( can show my configs if it helps, i got them right from the gethub) I entered gettransaction into the core Console but im not sure if it really does anything https://imgur.com/a/P39yIFU Im not a coder by any means, so bear with me. Also when i updated Bitcoin Core from 0.19.01 to 0.19.1, i ran the setup exe downloaded from bitcoin.org and it recognized and is using the blocks destination folder that 0.19.01 was running off of, if that makes a difference. I also posted this in lightningnetwork Thanks!
Connecting Eclair to Bitcoin Core | Code: -5 error
Hello I am having trouble getting eclair to connect to my full node. im running eclair 0.3.4 and bitcoin core 0.19.1 (i was running 0.19.01 but updated when i saw the "Current number of transactions" said N/A in the information window) I launch eclair-node-gui while bitcoin core is running (core is synced and has been running for an hour so mempool will be filled) Core says transactions are about 6k and memory usage is ~12MB However, I get error code: -5 on eclair: Error: NO such mempool transaction. Blockchain transactions are still in the process of being indexed. Use gettransaction for wallet transactions. Couldnt find any info on this in the eclair gethub I have txindex=1 in the conf of core. ( can show my configs if it helps, i got them right from the gethub) I entered gettransaction into the core Console but im not sure if it really does anything https://imgur.com/a/P39yIFU Im not a coder by any means, so bear with me. Also when i updated Bitcoin Core from 0.19.01 to 0.19.1, i ran the setup exe downloaded from bitcoin.org and it recognized and is using the blocks destination folder that 0.19.01 was running off of, if that makes a difference. If there is somewhere better for this post please let me know. I also posted on bitcoin Thanks!
Questions about running a full node on a raspberry pi
I am setting up a full node on my raspberry pi (with 4 gb ram), which is connected to a 1TB external hard drive. I have some questions:
How can I tell bitcoind that I would like it to store chain data on the external hard drive (which I have mounted to /mnt/harddrive)?
After running ./configure, I still don't see ~/.bitcoin/ present. I have created the directory, but how will bitcoind know where to look for the configuration file, bitcoin.conf?
I am hoping to do some data analysis of historical bitcoin transaction data using RPC. Is this the most efficient way to retrieve information?
What settings should I have in the bitcoin.conf file to ensure that I can read historical data? Right now, I have txindex=1, rpcuserpcpassword, server=1, daemon=1. Am I missing any obvious ones? (I haven't been able to find a full spec on what is and isn't allowed in the configuration file).
Dear Groestlers, it goes without saying that 2020 has been a difficult time for millions of people worldwide. The groestlcoin team would like to take this opportunity to wish everyone our best to everyone coping with the direct and indirect effects of COVID-19. Let it bring out the best in us all and show that collectively, we can conquer anything. The centralised banks and our national governments are facing unprecedented times with interest rates worldwide dropping to record lows in places. Rest assured that this can only strengthen the fundamentals of all decentralised cryptocurrencies and the vision that was seeded with Satoshi's Bitcoin whitepaper over 10 years ago. Despite everything that has been thrown at us this year, the show must go on and the team will still progress and advance to continue the momentum that we have developed over the past 6 years. In addition to this, we'd like to remind you all that this is Groestlcoin's 6th Birthday release! In terms of price there have been some crazy highs and lows over the years (with highs of around $2.60 and lows of $0.000077!), but in terms of value– Groestlcoin just keeps getting more valuable! In these uncertain times, one thing remains clear – Groestlcoin will keep going and keep innovating regardless. On with what has been worked on and completed over the past few months.
UPDATED - Groestlcoin Core 2.18.2
This is a major release of Groestlcoin Core with many protocol level improvements and code optimizations, featuring the technical equivalent of Bitcoin v0.18.2 but with Groestlcoin-specific patches. On a general level, most of what is new is a new 'Groestlcoin-wallet' tool which is now distributed alongside Groestlcoin Core's other executables. NOTE: The 'Account' API has been removed from this version which was typically used in some tip bots. Please ensure you check the release notes from 2.17.2 for details on replacing this functionality.
Builds are now done through Gitian
Calls to getblocktemplate will fail if the segwit rule is not specified. Calling getblocktemplate without segwit specified is almost certainly a misconfiguration since doing so results in lower rewards for the miner. Failed calls will produce an error message describing how to enable the segwit rule.
A warning is printed if an unrecognized section name is used in the configuration file. Recognized sections are [test], [main], and [regtest].
Four new options are available for configuring the maximum number of messages that ZMQ will queue in memory (the "high water mark") before dropping additional messages. The default value is 1,000, the same as was used for previous releases.
The rpcallowip option can no longer be used to automatically listen on all network interfaces. Instead, the rpcbind parameter must be used to specify the IP addresses to listen on. Listening for RPC commands over a public network connection is insecure and should be disabled, so a warning is now printed if a user selects such a configuration. If you need to expose RPC in order to use a tool like Docker, ensure you only bind RPC to your localhost, e.g. docker run [...] -p 127.0.0.1:1441:1441 (this is an extra :1441 over the normal Docker port specification).
The rpcpassword option now causes a startup error if the password set in the configuration file contains a hash character (#), as it's ambiguous whether the hash character is meant for the password or as a comment.
The whitelistforcerelay option is used to relay transactions from whitelisted peers even when not accepted to the mempool. This option now defaults to being off, so that changes in policy and disconnect/ban behavior will not cause a node that is whitelisting another to be dropped by peers.
A new short about the JSON-RPC interface describes cases where the results of anRPC might contain inconsistencies between data sourced from differentsubsystems, such as wallet state and mempool state.
A new document introduces Groestlcoin Core's BIP174 interface, which is used to allow multiple programs to collaboratively work to create, sign, and broadcast new transactions. This is useful for offline (cold storage) wallets, multisig wallets, coinjoin implementations, and many other cases where two or more programs need to interact to generate a complete transaction.
The output script descriptor (https://github.com/groestlcoin/groestlcoin/blob/mastedoc/descriptors.md) documentation has been updated with information about new features in this still-developing language for describing the output scripts that a wallet or other program wants to receive notifications for, such as which addresses it wants to know received payments. The language is currently used in multiple new and updated RPCs described in these release notes and is expected to be adapted to other RPCs and to the underlying wallet structure.
A new --disable-bip70 option may be passed to ./configure to prevent Groestlcoin-Qt from being built with support for the BIP70 payment protocol or from linking libssl. As the payment protocol has exposed Groestlcoin Core to libssl vulnerabilities in the past, builders who don't need BIP70 support are encouraged to use this option to reduce their exposure to future vulnerabilities.
The minimum required version of Qt (when building the GUI) has been increased from 5.2 to 5.5.1 (the depends system provides 5.9.7)
getnodeaddresses returns peer addresses known to this node. It may be used to find nodes to connect to without using a DNS seeder.
listwalletdir returns a list of wallets in the wallet directory (either the default wallet directory or the directory configured bythe -walletdir parameter).
getrpcinfo returns runtime details of the RPC server. Currently, it returns an array of the currently active commands and how long they've been running.
deriveaddresses returns one or more addresses corresponding to an output descriptor.
getdescriptorinfo accepts a descriptor and returns information aboutit, including its computed checksum.
joinpsbts merges multiple distinct PSBTs into a single PSBT. The multiple PSBTs must have different inputs. The resulting PSBT will contain every input and output from all the PSBTs. Any signatures provided in any of the PSBTs will be dropped.
analyzepsbt examines a PSBT and provides information about what the PSBT contains and the next steps that need to be taken in order to complete the transaction. For each input of a PSBT, analyze psbt provides information about what information is missing for that input, including whether a UTXO needs to be provided, what pubkeys still need to be provided, which scripts need to be provided, and what signatures are still needed. Every input will also list which role is needed to complete that input, and analyzepsbt will also list the next role in general needed to complete the PSBT. analyzepsbt will also provide the estimated fee rate and estimated virtual size of the completed transaction if it has enough information to do so.
utxoupdatepsbt searches the set of Unspent Transaction Outputs (UTXOs) to find the outputs being spent by the partial transaction. PSBTs need to have the UTXOs being spent to be provided because the signing algorithm requires information from the UTXO being spent. For segwit inputs, only the UTXO itself is necessary. For non-segwit outputs, the entire previous transaction is needed so that signers can be sure that they are signing the correct thing. Unfortunately, because the UTXO set only contains UTXOs and not full transactions, utxoupdatepsbt will only add the UTXO for segwit inputs.
getpeerinfo now returns an additional minfeefilter field set to the peer's BIP133 fee filter. You can use this to detect that you have peers that are willing to accept transactions below the default minimum relay fee.
The mempool RPCs, such as getrawmempool with verbose=true, now return an additional "bip125-replaceable" value indicating whether thetransaction (or its unconfirmed ancestors) opts-in to asking nodes and miners to replace it with a higher-feerate transaction spending any of the same inputs.
settxfee previously silently ignored attempts to set the fee below the allowed minimums. It now prints a warning. The special value of"0" may still be used to request the minimum value.
getaddressinfo now provides an ischange field indicating whether the wallet used the address in a change output.
importmulti has been updated to support P2WSH, P2WPKH, P2SH-P2WPKH, and P2SH-P2WSH. Requests for P2WSH and P2SH-P2WSH accept an additional witnessscript parameter.
importmulti now returns an additional warnings field for each request with an array of strings explaining when fields are being ignored or are inconsistent, if there are any.
getaddressinfo now returns an additional solvable Boolean field when Groestlcoin Core knows enough about the address's scriptPubKey, optional redeemScript, and optional witnessScript for the wallet to be able to generate an unsigned input spending funds sent to that address.
The getaddressinfo, listunspent, and scantxoutset RPCs now return an additional desc field that contains an output descriptor containing all key paths and signing information for the address (except for the private key). The desc field is only returned for getaddressinfo and listunspent when the address is solvable.
importprivkey will preserve previously-set labels for addresses or public keys corresponding to the private key being imported. For example, if you imported a watch-only address with the label "coldwallet" in earlier releases of Groestlcoin Core, subsequently importing the private key would default to resetting the address's label to the default empty-string label (""). In this release, the previous label of "cold wallet" will be retained. If you optionally specify any label besides the default when calling importprivkey, the new label will be applied to the address.
getmininginfo now omits currentblockweight and currentblocktx when a block was never assembled via RPC on this node.
The getrawtransaction RPC & REST endpoints no longer check the unspent UTXO set for a transaction. The remaining behaviors are as follows:
If a blockhash is provided, check the corresponding block.
If no blockhash is provided, check the mempool.
If no blockhash is provided but txindex is enabled, also check txindex.
unloadwallet is now synchronous, meaning it will not return until the wallet is fully unloaded.
importmulti now supports importing of addresses from descriptors. A desc parameter can be provided instead of the "scriptPubKey" in are quest, as well as an optional range for ranged descriptors to specify the start and end of the range to import. Descriptors with key origin information imported through importmulti will have their key origin information stored in the wallet for use with creating PSBTs.
listunspent has been modified so that it also returns witnessScript, the witness script in the case of a P2WSH orP2SH-P2WSH output.
createwallet now has an optional blank argument that can be used to create a blank wallet. Blank wallets do not have any keys or HDseed. They cannot be opened in software older than 2.18.2. Once a blank wallet has a HD seed set (by using sethdseed) or private keys, scripts, addresses, and other watch only things have been imported, the wallet is no longer blank and can be opened in 2.17.2. Encrypting a blank wallet will also set a HD seed for it.
signrawtransaction is removed after being deprecated and hidden behind a special configuration option in version 2.17.2.
The 'account' API is removed after being deprecated in v2.17.2 The 'label' API was introduced in v2.17.2 as a replacement for accounts. See the release notes from v2.17.2 for a full description of the changes from the 'account' API to the 'label' API.
addwitnessaddress is removed after being deprecated in version 2.16.0.
generate is deprecated and will be fully removed in a subsequent major version. This RPC is only used for testing, but its implementation reached across multiple subsystems (wallet and mining), so it is being deprecated to simplify the wallet-node interface. Projects that are using generate for testing purposes should transition to using the generatetoaddress RPC, which does not require or use the wallet component. Calling generatetoaddress with an address returned by the getnewaddress RPC gives the same functionality as the old generate RPC. To continue using generate in this version, restart groestlcoind with the -deprecatedrpc=generate configuration option.
Be reminded that parts of the validateaddress command have been deprecated and moved to getaddressinfo. The following deprecated fields have moved to getaddressinfo: ismine, iswatchonly,script, hex, pubkeys, sigsrequired, pubkey, embedded,iscompressed, label, timestamp, hdkeypath, hdmasterkeyid.
The addresses field has been removed from the validateaddressand getaddressinfo RPC methods. This field was confusing since it referred to public keys using their P2PKH address. Clients should use the embedded.address field for P2SH or P2WSH wrapped addresses, and pubkeys for inspecting multisig participants.
A new /rest/blockhashbyheight/ endpoint is added for fetching the hash of the block in the current best blockchain based on its height (how many blocks it is after the Genesis Block).
A new Window menu is added alongside the existing File, Settings, and Help menus. Several items from the other menus that opened new windows have been moved to this new Window menu.
In the Send tab, the checkbox for "pay only the required fee" has been removed. Instead, the user can simply decrease the value in the Custom Fee rate field all the way down to the node's configured minimumrelay fee.
In the Overview tab, the watch-only balance will be the only balance shown if the wallet was created using the createwallet RPC and thedisable_private_keys parameter was set to true.
The launch-on-startup option is no longer available on macOS if compiled with macosx min version greater than 10.11 (useCXXFLAGS="-mmacosx-version-min=10.11" CFLAGS="-mmacosx-version-min=10.11" for setting the deployment sdkversion)
A new groestlcoin-wallet tool is now distributed alongside Groestlcoin Core's other executables. Without needing to use any RPCs, this tool can currently create a new wallet file or display some basic information about an existing wallet, such as whether the wallet is encrypted, whether it uses an HD seed, how many transactions it contains, and how many address book entries it has.
Since version 2.16.0, Groestlcoin Core's built-in wallet has defaulted to generating P2SH-wrapped segwit addresses when users want to receive payments. These addresses are backwards compatible with all widely used software. Starting with Groestlcoin Core 2.20.1 (expected about a year after 2.18.2), Groestlcoin Core will default to native segwitaddresses (bech32) that provide additional fee savings and other benefits. Currently, many wallets and services already support sending to bech32 addresses, and if the Groestlcoin Core project sees enough additional adoption, it will instead default to bech32 receiving addresses in Groestlcoin Core 2.19.1. P2SH-wrapped segwit addresses will continue to be provided if the user requests them in the GUI or by RPC, and anyone who doesn't want the update will be able to configure their default address type. (Similarly, pioneering users who want to change their default now may set the addresstype=bech32 configuration option in any Groestlcoin Core release from 2.16.0 up.)
BIP 61 reject messages are now deprecated. Reject messages have no use case on the P2P network and are only logged for debugging by most network nodes. Furthermore, they increase bandwidth and can be harmful for privacy and security. It has been possible to disable BIP 61 messages since v2.17.2 with the -enablebip61=0 option. BIP 61 messages will be disabled by default in a future version, before being removed entirely.
The submitblock RPC previously returned the reason a rejected block was invalid the first time it processed that block but returned a generic "duplicate" rejection message on subsequent occasions it processed the same block. It now always returns the fundamental reason for rejecting an invalid block and only returns "duplicate" for valid blocks it has already accepted.
A new submitheader RPC allows submitting block headers independently from their block. This is likely only useful for testing.
The signrawtransactionwithkey and signrawtransactionwithwallet RPCs have been modified so that they also optionally accept a witnessScript, the witness script in the case of a P2WSH orP2SH-P2WSH output. This is compatible with the change to listunspent.
For the walletprocesspsbt and walletcreatefundedpsbt RPCs, if thebip32derivs parameter is set to true but the key metadata for a public key has not been updated yet, then that key will have a derivation path as if it were just an independent key (i.e. no derivation path and its master fingerprint is itself).
The -usehd configuration option was removed in version 2.16.0 From that version onwards, all new wallets created are hierarchical deterministic wallets. This release makes specifying -usehd an invalid configuration option.
This release allows peers that your node automatically disconnected for misbehaviour (e.g. sending invalid data) to reconnect to your node if you have unused incoming connection slots. If your slots fill up, a misbehaving node will be disconnected to make room for nodes without a history of problems (unless the misbehaving node helps your node in some other way, such as by connecting to a part of the Internet from which you don't have many other peers). Previously, Groestlcoin Core banned the IP addresses of misbehaving peers for a period (default of 1 day); this was easily circumvented by attackers with multiple IP addresses. If you manually ban a peer, such as by using the setban RPC, all connections from that peer will still be rejected.
The key metadata will need to be upgraded the first time that the HDseed is available. For unencrypted wallets this will occur on wallet loading. For encrypted wallets this will occur the first time the wallet is unlocked.
Newly encrypted wallets will no longer require restarting the software. Instead such wallets will be completely unloaded and reloaded to achieve the same effect.
A sub-project of Bitcoin Core now provides Hardware Wallet Interaction (HWI) scripts that allow command-line users to use several popular hardware key management devices with Groestlcoin Core. See their project page for details.
This release changes the Random Number Generator (RNG) used from OpenSSL to Groestlcoin Core's own implementation, although entropy gathered by Groestlcoin Core is fed out to OpenSSL and then read back in when the program needs strong randomness. This moves Groestlcoin Core a little closer to no longer needing to depend on OpenSSL, a dependency that has caused security issues in the past. The new implementation gathers entropy from multiple sources, including from hardware supporting the rdseed CPU instruction.
On macOS, Groestlcoin Core now opts out of application CPU throttling ("app nap") during initial blockchain download, when catching up from over 100 blocks behind the current chain tip, or when reindexing chain data. This helps prevent these operations from taking an excessively long time because the operating system is attempting to conserve power.
How to Upgrade?
Windows If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer. OSX If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), run the dmg and drag Groestlcoin Core to Applications. Ubuntu http://groestlcoin.org/forum/index.php?topic=441.0
ALL NEW - Groestlcoin Moonshine iOS/Android Wallet
Built with React Native, Moonshine utilizes Electrum-GRS's JSON-RPC methods to interact with the Groestlcoin network. GRS Moonshine's intended use is as a hot wallet. Meaning, your keys are only as safe as the device you install this wallet on. As with any hot wallet, please ensure that you keep only a small, responsible amount of Groestlcoin on it at any given time.
Groestlcoin Mainnet & Testnet supported
Multiple wallet support
Electrum - Support for both random and custom peers
Biometric + Pin authentication
Custom fee selection
Import mnemonic phrases via manual entry or scanning
BIP39 Passphrase functionality
Support for Segwit-compatible & legacy addresses in settings
Support individual private key sweeping
UTXO blacklisting - Accessible via the Transaction Detail view, this allows users to blacklist any utxo that they do not wish to include in their list of available utxo's when sending transactions. Blacklisting a utxo excludes its amount from the wallet's total balance.
Ability to Sign & Verify Messages
Support BitID for password-free authentication
Coin Control - This can be accessed from the Send Transaction view and basically allows users to select from a list of available UTXO's to include in their transaction.
HODL GRS connects directly to the Groestlcoin network using SPV mode and doesn't rely on servers that can be hacked or disabled. HODL GRS utilizes AES hardware encryption, app sandboxing, and the latest security features to protect users from malware, browser security holes, and even physical theft. Private keys are stored only in the secure enclave of the user's phone, inaccessible to anyone other than the user. Simplicity and ease-of-use is the core design principle of HODL GRS. A simple recovery phrase (which we call a Backup Recovery Key) is all that is needed to restore the user's wallet if they ever lose or replace their device. HODL GRS is deterministic, which means the user's balance and transaction history can be recovered just from the backup recovery key.
Simplified payment verification for fast mobile performance
Groestlcoin Seed Savior is a tool for recovering BIP39 seed phrases. This tool is meant to help users with recovering a slightly incorrect Groestlcoin mnemonic phrase (AKA backup or seed). You can enter an existing BIP39 mnemonic and get derived addresses in various formats. To find out if one of the suggested addresses is the right one, you can click on the suggested address to check the address' transaction history on a block explorer.
If a word is wrong, the tool will try to suggest the closest option.
If a word is missing or unknown, please type "?" instead and the tool will find all relevant options.
NOTE: NVidia GPU or any CPU only. AMD graphics cards will not work with this address generator. VanitySearch is a command-line Segwit-capable vanity Groestlcoin address generator. Add unique flair when you tell people to send Groestlcoin. Alternatively, VanitySearch can be used to generate random addresses offline. If you're tired of the random, cryptic addresses generated by regular groestlcoin clients, then VanitySearch is the right choice for you to create a more personalized address. VanitySearch is a groestlcoin address prefix finder. If you want to generate safe private keys, use the -s option to enter your passphrase which will be used for generating a base key as for BIP38 standard (VanitySearch.exe -s "My PassPhrase" FXPref). You can also use VanitySearch.exe -ps "My PassPhrase" which will add a crypto secure seed to your passphrase. VanitySearch may not compute a good grid size for your GPU, so try different values using -g option in order to get the best performances. If you want to use GPUs and CPUs together, you may have best performances by keeping one CPU core for handling GPU(s)/CPU exchanges (use -t option to set the number of CPU threads).
Fixed size arithmetic
Fast Modular Inversion (Delayed Right Shift 62 bits)
SecpK1 Fast modular multiplication (2 steps folding 512bits to 256bits using 64 bits digits)
Use some properties of elliptic curve to generate more keys
SSE Secure Hash Algorithm SHA256 and RIPEMD160 (CPU)
Groestlcoin EasyVanity 2020 is a windows app built from the ground-up and makes it easier than ever before to create your very own bespoke bech32 address(es) when whilst not connected to the internet. If you're tired of the random, cryptic bech32 addresses generated by regular Groestlcoin clients, then Groestlcoin EasyVanity2020 is the right choice for you to create a more personalised bech32 address. This 2020 version uses the new VanitySearch to generate not only legacy addresses (F prefix) but also Bech32 addresses (grs1 prefix).
Ability to continue finding keys after first one is found
Includes warning on start-up if connected to the internet
Ability to output keys to a text file (And shows button to open that directory)
Show and hide the private key with a simple toggle switch
Show full output of commands
Ability to choose between Processor (CPU) and Graphics Card (GPU) ( NVidia ONLY! )
Features both a Light and Dark Material Design-Style Themes
Free software - MIT. Anyone can audit the code.
Written in C# - The code is short, and easy to review.
Groestlcoin WPF is an alternative full node client with optional lightweight 'thin-client' mode based on WPF. Windows Presentation Foundation (WPF) is one of Microsoft's latest approaches to a GUI framework, used with the .NET framework. Its main advantages over the original Groestlcoin client include support for exporting blockchain.dat and including a lite wallet mode. This wallet was previously deprecated but has been brought back to life with modern standards.
Works via TOR or SOCKS5 proxy
Can use bootstrap.dat format as blockchain database
Import/Export blockchain to/from bootstrap.dat
Import wallet.dat from Groestlcoin-qt wallet
Export wallet to wallet.dat
Use both groestlcoin-wpf and groestlcoin-qt with the same addresses in parallel. When you send money from one program, the transaction will automatically be visible on the other wallet.
Rescan blockchain with a simple mouse click
Works as a full node and listens to port 1331 (listening port can be changed)
Fast Block verifying, parallel processing on multi-core CPUs
Mine Groestlcoins with your CPU by a simple mouse click
All private keys are kept encrypted on your local machine (or on a USB stick)
Lite - Has a lightweight "thin client" mode which does not require a new user to download the entire Groestlcoin chain and store it
Free and decentralised - Open Source under GNU license
Fixed Import/Export to wallet.dat
Rescan wallet option
Change wallet password option
Address type and Change type options through *.conf file
Import from bootstrap.dat - It is a flat, binary file containing Groestlcoin blockchain data, from the genesis block through a recent height. All versions automatically validate and import the file "grs.bootstrap.dat" in the GRS directory. Grs.bootstrap.dat is compatible with Qt wallet. GroestlCoin-Qt can load from it.
In Full mode file %APPDATA%\Groestlcoin-WPF\GRS\GRS.bootstrap.dat is full blockchain in standard bootstrap.dat format and can be used with other clients.
Groestlcoin Electrum Personal Server aims to make using Electrum Groestlcoin wallet more secure and more private. It makes it easy to connect your Electrum-GRS wallet to your own full node. It is an implementation of the Electrum-grs server protocol which fulfils the specific need of using the Electrum-grs wallet backed by a full node, but without the heavyweight server backend, for a single user. It allows the user to benefit from all Groestlcoin Core's resource-saving features like pruning, blocks only and disabled txindex. All Electrum-GRS's feature-richness like hardware wallet integration, multi-signature wallets, offline signing, seed recovery phrases, coin control and so on can still be used, but connected only to the user's own full node. Full node wallets are important in Groestlcoin because they are a big part of what makes the system be trust-less. No longer do people have to trust a financial institution like a bank or PayPal, they can run software on their own computers. If Groestlcoin is digital gold, then a full node wallet is your own personal goldsmith who checks for you that received payments are genuine. Full node wallets are also important for privacy. Using Electrum-GRS under default configuration requires it to send (hashes of) all your Groestlcoin addresses to some server. That server can then easily spy on your transactions. Full node wallets like Groestlcoin Electrum Personal Server would download the entire blockchain and scan it for the user's own addresses, and therefore don't reveal to anyone else which Groestlcoin addresses they are interested in. Groestlcoin Electrum Personal Server can also broadcast transactions through Tor which improves privacy by resisting traffic analysis for broadcasted transactions which can link the IP address of the user to the transaction. If enabled this would happen transparently whenever the user simply clicks "Send" on a transaction in Electrum-grs wallet. Note: Currently Groestlcoin Electrum Personal Server can only accept one connection at a time.
Use your own node
Uses less CPU and RAM than ElectrumX
Used intermittently rather than needing to be always-on
Doesn't require an index of every Groestlcoin address ever used like on ElectrumX
UPDATED – Android Wallet 7.38.1 - Main Net + Test Net
The app allows you to send and receive Groestlcoin on your device using QR codes and URI links. When using this app, please back up your wallet and email them to yourself! This will save your wallet in a password protected file. Then your coins can be retrieved even if you lose your phone.
Add confidence messages, helping users to understand the confidence state of their payments.
Handle edge case when restoring via an external app.
Count devices with a memory class of 128 MB as low ram.
Introduce dark mode on Android 10 devices.
Reduce memory usage of PIN-protected wallets.
Tapping on the app's version will reveal a checksum of the APK that was installed.
Fix issue with confirmation of transactions that empty your wallet.
Groestlcoin Sentinel is a great solution for anyone who wants the convenience and utility of a hot wallet for receiving payments directly into their cold storage (or hardware wallets). Sentinel accepts XPUB's, YPUB'S, ZPUB's and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB's, YPUB's and ZPUB's) deterministically generate addresses for that wallet. Groestlcoin Sentinel is a fork of Groestlcoin Samourai Wallet with all spending and transaction building code removed.
I set txindex=1 in the bitcoin.conf file and restarted Bitcoin-QT. I see it reindexing but it's taking days instead of hours to finish. Meanwhile, I have to start up Bisq to finalize a trade before the trade times out. However, Bisq always connects to a local full node if it detects one and Bisq warns never to start it if your full node is not up to date yet. So, here's my question. Can I shutdown Bitcoin-QT while it's still reindexing its local copy of the blockchain without consequences? Or, if I interrupt it before completion, am I corrupting my downloaded copy of the blockchain and I'll have to start over the full node setup?
Guys, I already have Bitcoin Core Full Node synchronized with the argument: txindex=1 enabled in bitcoin.conf, I would now like to make electrum use my own node to log transactions etc. But I don't find much material on the web, so I can use it with my Trezor Wallet without relying on other nodes since I have my own. If you can help me, I'd be really grateful, thanks.
How long needs a raspberry pi3+ to sync from 0 to full? I know because I did: Its 19 Days
So I got a Raspberry pi 3+ and a Samsung MU-PA500B SSD, installed a headless raspbian and bitcoin core and let it run on Dec 16 and today it finally finished syncing :) My internet connection is a 100Mbit down / 20Mbit up cable line and this bitcoin.conf settings work best for me: daemon=1 logips=1 maxconnections=40 maxuploadtarget=5000 txindex=1 rest=1 server=1 walletrbf=1 dbcache=100 I don't have swap and dbcache=100 lets the bitcoin core daemon use ~800MB of memory which works nice for the pi. Lessons learned? Not really, running bitcoin core is easy as fuck, simply fire&forget, the fun part starts now when a personal electrum server and a lightning node will come on top, but however there indeed was a lesson I learnt: Don't use fancy shmancy file systems like btrfs on your ssd because creating of swap files is not supported and it took me hours to find out this simple fact^^
Bitcoin core v18.0 keeps crashing on cloud server. Help.
I am trying to synchronize a full node on a Digital Ocean instance with 3GB of RAM and 300 GB disk space. However, I noticed that bitcoin core is crashing very frequently. From the instance monitoring, it seems like it's a RAM issue: https://imgur.com/a/KuMev4A Thought that 3GB of RAM were more than enough but apparently not. What is the recommended RAM then? Here is how I installed bitcoin core:
wget https://bitcoincore.org/bin/bitcoin-core-0.18.0/bitcoin-0.18.0-x86_64-linux-gnu.tar.gz; tar -zxvf bitcoin-0.18.0-x86_64-linux-gnu.tar.gz; cp -r bitcoin-0.18.0/bin/* /uslocal/bin;
I don't notice anything in debug.log: https://pastebin.com/SkrEzmTb I don't have anything else running on this instance. EDIT: after adding some swap memory, bitcoin core doesn't crash anymore but it seems to be synchronizing extremely slowly while RAM usage stays around 97% EDIT2: replaced bitcoin.conf: EDIT3: new bitcoin.conf
[DEVELOPMENT] Bitcoind IPV4 testnet port (18332) is failing to bind
[SOLVED] Thanks for everyone that have helped!
Hello everyone, this is a development problem that I'm currently having. Since the BTC Development sub is kind of inactive and I couldn't find any rule contraty to posting about BTC Development, I'll try my luck in here as I'm hopeless already. I've posted on BTC Stack Exchange but no answers also. Please, don't get me wrong, I'm trying to solve this problem for many days now, I've looked up everywhere for this. I'm new to Bitcoin development and I'm currently having difficulties trying to make RPC calls from a Docker Container to a Bitcoin-Core daemon running in a SSH server. I suppose that the problem may be with Firewall or closed ports, but I also do not know much about Network settings. I'm using nbobtc/bitcoind-php package to make the RPC calls with HTTP requests, and it is running in a Docker container. I'm sure the container is functional and is not the problem. So here's what happening: when I run bitcoind in root user (but normal also won't work) in my SSH server, the IPV4 testnet port seems to be not opened. This message goes up when I run bitcoind:
Here's what my bitcoin.conf looks like (I want to use testnet in here). I'm using Bitcoin-Core "subversion": "Satoshi:0.17.1".
server=1 debug=net txindex=1 testnet=1 rpcuser=userb rpcpassword=test test.rpcport=18332 # I've already tried allowing the IP these 3 ways: # rpcallowip=192.168.xx.xx # My machine's IP # rpcallowip=172.19.x.x/xx # Docker's NBOBTC container IP # rpcallowip=0.0.0.0/0 # Allowing all IP datadir=/home/bitcoin-dev/.bitcoin debuglogfile=/home/bitcoin-dev/.bitcoin/debug.log
Here's what appears in debug.log right after I run Bitcoind:
2019-05-06T14:43:10Z Bitcoin Core version v0.17.1 (release build) 2019-05-06T14:43:10Z InitParameterInteraction: parameter interaction: -whitelistforcerelay=1 -> setting -whitelistrelay=1 2019-05-06T14:43:10Z Assuming ancestors of block 0000000000000037a8cd3e06cd5edbfe9dd1dbcc5dacab279376ef7cfc2b4c75 have valid signatures. 2019-05-06T14:43:10Z Setting nMinimumChainWork=00000000000000000000000000000000000000000000007dbe94253893cbd463 2019-05-06T14:43:10Z Using the 'sse4(1way),sse41(4way)' SHA256 implementation 2019-05-06T14:43:10Z Default data directory /root/.bitcoin 2019-05-06T14:43:10Z Using data directory /home/bitcoin-dev/.bitcoin/testnet3 2019-05-06T14:43:10Z Using config file /home/bitcoin-dev/.bitcoin/bitcoin.conf 2019-05-06T14:43:10Z Using at most 125 automatic connections (1024 file descriptors available) 2019-05-06T14:43:10Z Using 16 MiB out of 32/2 requested for signature cache, able to store 524288 elements 2019-05-06T14:43:10Z Using 16 MiB out of 32/2 requested for script execution cache, able to store 524288 elements 2019-05-06T14:43:10Z Using 4 threads for script verification 2019-05-06T14:43:10Z scheduler thread start 2019-05-06T14:43:10Z Binding RPC on address 0.0.0.0 port 18332 failed. 2019-05-06T14:43:10Z HTTP: creating work queue of depth 16 2019-05-06T14:43:10Z Config options rpcuser and rpcpassword will soon be deprecated. Locally-run instances may remove rpcuser to use cookie-based auth, or may be replaced with rpcauth. Please see share/rpcauth for rpcauth auth generation. 2019-05-06T14:43:10Z HTTP: starting 4 worker threads 2019-05-06T14:43:10Z Using wallet directory /home/bitcoin-dev/.bitcoin/testnet3/wallets 2019-05-06T14:43:10Z init message: Verifying wallet(s)... 2019-05-06T14:43:10Z Using BerkeleyDB version Berkeley DB 4.8.30: (April 9, 2010) 2019-05-06T14:43:10Z Using wallet wallet.dat 2019-05-06T14:43:10Z BerkeleyEnvironment::Open: LogDir=/home/bitcoin-dev/.bitcoin/testnet3/wallets/database ErrorFile=/home/bitcoin-dev/.bitcoin/testnet3/wallets/db.log 2019-05-06T14:43:10Z net: setting try another outbound peer=false 2019-05-06T14:43:10Z Cache configuration: 2019-05-06T14:43:10Z * Using 2.0MiB for block index database 2019-05-06T14:43:10Z * Using 56.0MiB for transaction index database 2019-05-06T14:43:10Z * Using 8.0MiB for chain state database 2019-05-06T14:43:10Z * Using 384.0MiB for in-memory UTXO set (plus up to 286.1MiB of unused mempool space) 2019-05-06T14:43:10Z init message: Loading block index... 2019-05-06T14:43:10Z Opening LevelDB in /home/bitcoin-dev/.bitcoin/testnet3/blocks/index 2019-05-06T14:43:10Z Opened LevelDB successfully 2019-05-06T14:43:10Z Using obfuscation key for /home/bitcoin-dev/.bitcoin/testnet3/blocks/index: 0000000000000000 2019-05-06T14:43:19Z LoadBlockIndexDB: last block file = 161 2019-05-06T14:43:19Z LoadBlockIndexDB: last block file info: CBlockFileInfo(blocks=755, size=30875345, heights=1513309...1514061, time=2019-04-29...2019-05-03) 2019-05-06T14:43:19Z Checking all blk files are present... 2019-05-06T14:43:20Z Opening LevelDB in /home/bitcoin-dev/.bitcoin/testnet3/chainstate 2019-05-06T14:43:20Z Opened LevelDB successfully 2019-05-06T14:43:20Z Using obfuscation key for /home/bitcoin-dev/.bitcoin/testnet3/chainstate: 2686d59caeb1917c 2019-05-06T14:43:20Z Loaded best chain: hashBestChain=00000000b3b6a5db140b6058b7abe5cb00d8af61afd2a237ae3468cd36e387fa height=927391 date=2016-09-08T15:04:00Z progress=0.311180 2019-05-06T14:43:20Z init message: Rewinding blocks... 2019-05-06T14:43:29Z init message: Verifying blocks... 2019-05-06T14:43:29Z Verifying last 6 blocks at level 3 2019-05-06T14:43:29Z [0%]...[16%]...[33%]...[50%]...[66%]...[83%]...[99%]...[DONE]. 2019-05-06T14:43:29Z No coin database inconsistencies in last 6 blocks (500 transactions) 2019-05-06T14:43:29Z block index 19450ms 2019-05-06T14:43:29Z Opening LevelDB in /home/bitcoin-dev/.bitcoin/testnet3/indexes/txindex 2019-05-06T14:43:30Z Opened LevelDB successfully 2019-05-06T14:43:30Z Using obfuscation key for /home/bitcoin-dev/.bitcoin/testnet3/indexes/txindex: 0000000000000000 2019-05-06T14:43:30Z init message: Loading wallet... 2019-05-06T14:43:30Z txindex thread start 2019-05-06T14:43:30Z [default wallet] nFileVersion = 170100 2019-05-06T14:43:30Z [default wallet] Keys: 2005 plaintext, 0 encrypted, 2005 w/ metadata, 2005 total. Unknown wallet records: 1 2019-05-06T14:43:30Z Syncing txindex with block chain from height 694205 2019-05-06T14:43:30Z [default wallet] Wallet completed loading in 123ms 2019-05-06T14:43:30Z [default wallet] setKeyPool.size() = 2000 2019-05-06T14:43:30Z [default wallet] mapWallet.size() = 7 2019-05-06T14:43:30Z [default wallet] mapAddressBook.size() = 4 2019-05-06T14:43:30Z mapBlockIndex.size() = 1515581 2019-05-06T14:43:30Z nBestHeight = 927391 2019-05-06T14:43:30Z torcontrol thread start 2019-05-06T14:43:30Z Bound to [::]:18333 2019-05-06T14:43:30Z Bound to 0.0.0.0:18333 2019-05-06T14:43:30Z init message: Loading P2P addresses... 2019-05-06T14:43:30Z Loaded 10420 addresses from peers.dat 36ms 2019-05-06T14:43:30Z init message: Loading banlist... 2019-05-06T14:43:30Z Loaded 0 banned node ips/subnets from banlist.dat 29ms 2019-05-06T14:43:30Z init message: Starting network threads... 2019-05-06T14:43:30Z net thread start 2019-05-06T14:43:30Z dnsseed thread start 2019-05-06T14:43:30Z addcon thread start 2019-05-06T14:43:30Z msghand thread start 2019-05-06T14:43:30Z init message: Done loading 2019-05-06T14:43:30Z opencon thread start
After all that appears above, there are just "UpdateTip", "Requesting block", "received block" and "getdata" messages. (so the P2P port, 18333, works). And here is when I netstat: sudo netstat -nap|grep bitcoin|grep LISTEN
Could not connect to Bitcoin Core using JSON-RPC error message when launching Eclair
Hi! I am new to the Lightning Network and I am seeking to install a Lighting Network full node on my PC. I already have Bitcoin Core installed and my full bitcoin node working (version 0.17.1). I went through some steps to install the LN full node on a video on YouTube, following instructions from a Medium post: "How to run a Lightning Network node on Windows" (https://medium.com/coinmonks/guide-setup-a-lightning-network-node-on-windows-8475206807f). I installed Eclair (v0.2-beta9) from their Github page. But when I try to launch Eclair (with my Bitcoin Core node up and running), an error message pops us, saying:
Could not connect to Bitcoin Core using JSON-RPC. Make sure that Bitcoin Core is up and running and RPC parameters are correct.
Here is what I have in my Bitcoin Core .conf file: testnet=0 server=1 rpcuser=foo rpcpassword=bar txindex=1 zmqpubrawblock=tcp://127.0.0.1:29000 zmqpubrawtx=tcp://127.0.0.1:29000 addresstype=p2sh-segwit deprecatedrpc=signrawtransaction And in my eclair.conf file: eclair.chain=mainnet eclair.bitcoind.rpcport=8332 eclair.bitcoind.rpcuser=foo eclair.bitcoind.rpcpassword=bar eclair.node-alias=”myalias” eclair.node-color=ff9900 By the way, I went through an old thread on the same topic (https://www.reddit.com/lightningnetwork/comments/7rlk1e/could_not_connect_to_bitcoind_using_jsonrpc_any/), but the solutions proposed did not work for me. Your help would be greatly appreciated :-) Thanks!
Soo after almost 3 months of setting up I have my own LN full node running on RP3
I have been eager to try LN mainnet since the very beginning of it. I've found out about lnd, eclair, zap and other wallets but every scenario I tried to use it failed because of critical issues:
eclair does not really constitute a wallet, it's more like a credit card - you can send money but not receive it
lnd is okay, but requires a server and tons of resources for maintaining a full node, can't be used securely, efficiently and mobily at the same time
zap offers some cloud wallet (in testnet!) by default, this is a serious misunderstanding of my cryptoanarchy needs
web wallets - ah, forget it
So I've decided to use my Raspberry Pi with a very old laptop HDD attached (200GB so the pruning function has to be used) to create a backend wallet service and zap desktop (temporarily!) as my frontend control panel. https://preview.redd.it/0vcq147887q11.png?width=1024&format=png&auto=webp&s=7bb6eccdd4110a857e5af0400acc2d7e1ee7ee85 Setting up Pi is easy, lots of tutorials over the internet, not gonna discuss it here. Then I had to obtain bitcoind (current rel: bitcoin-0.17.0-arm-linux-gnueabihf.tar.gz) and lnd (lnd-linux-armv7-v0.5-beta.tar.gz), create a bitcoin technical user, deploy the tools, configure and install new systemd services and go through the configs. This is a tricky part, so let's share:
# Generated by https://jlopp.github.io/bitcoin-core-config-generato # This config should be placed in following path: # ~/.bitcoin/bitcoin.conf # [core] # Set database cache size in megabytes; machines sync faster with a larger cache. Recommend setting as high as possible based upon machine's available RAM. dbcache=100 # Keep at most unconnectable transactions in memory. maxorphantx=10 # Keep the transaction memory pool below megabytes. maxmempool=50 # Reduce storage requirements by only storing most recent N MiB of block. This mode is incompatible with -txindex and -rescan. WARNING: Reverting this setting requires re-downloading the entire blockchain. (default: 0 = disable pruning blocks, 1 = allow manual pruning via RPC, greater than 550 = automatically prune blocks to stay under target size in MiB). prune=153600 # [network] # Maintain at most N connections to peers. maxconnections=40 # Use UPnP to map the listening port. upnp=1 # Tries to keep outbound traffic under the given target (in MiB per 24h), 0 = no limit. maxuploadtarget=5000 # [debug] # Log IP Addresses in debug output. logips=1 # [rpc] # Accept public REST requests. rest=1 # [wallet] # Do not load the wallet and disable wallet RPC calls. disablewallet=1 # [zeromq] # Enable publishing of raw block hex to . zmqpubrawblock=tcp://127.0.0.1:28332 # Enable publishing of raw transaction hex to . zmqpubrawtx=tcp://127.0.0.1:28333 # [rpc] # Accept command line and JSON-RPC commands. server=1 # Username and hashed password for JSON-RPC connections. The field comes in the format: :$. RPC clients connect using rpcuser=/rpcpassword= arguments. You can generate this value with the ./share/rpcauth/rpcauth.py script in the Bitcoin Core repository. This option can be specified multiple times. rpcauth=xxx:yyy$zzz
Whooaa, this online config generator is really helpful, but I still had to manually correct a few things. The last line is obviously generated by rpcauth.py, I disabled the wallet functionality as lnd is going to take care of my funds. ZMQ is not available to the network so only my LND can use it, RPC usage I still have to think through a little, in general I would like to have my own block explorer some day but also be safe from any hacking attempts (thus I would need at least 2 RPC ports/user accounts - one for lnd, one for block explorer frontend). No ports open on firewall at this time, only UPnP is active and gently opens 8333 for block/tx transfers. Now, synchronizing the blockchain took me time from mid-July to early September... The hard drive is really slow, also my external HDD drive has some trouble with its A/C adapter so Pi was getting undervoltage alerts all the time. Luckily, it is just downclocking when it happens and slowly but steadily synchronized the whole history. After all, I'm not paying even $5 monthly for a VPS, it is by design the cheapest hardware I could use to set up my LN wallet. When bitcoind was ready (I've heard some stories about btcd but I don't trust this software yet, sorry), it's time to configure lnd.conf:
Here I've had to XXX a little more fields, as not only the bitcoind RPC credentials are stored here, but also my node's public information (it should be illegal to run nodes without specifically selected color and alias!). It is public (and I had to open port 9735 on my firewall), but not necessarily connected to my reddit account for most of the adversaries, so let's keep it this way. In fact, I also see a security vulnerability here: my whole node's stability depends on the IP being static. I could swap it for a .tk domain but who can tell if the bad guys won't actively fight DNS system in order to prevent global economic revolution? As such, I would rather see node identification in LN based on a public key only with possible *hints* of last-known-ip-address but the whole discovery should be performed by the nodes themself in a p2p manner, obviously preventing malicious actors from poisoning the network in some way. For now, I consider the IP stability a weak link and will probably have to pay extra Bitcoin TX fees when something happens to it (not much of a cost luckily!). https://preview.redd.it/hjd1nooo77q11.png?width=741&format=png&auto=webp&s=14214fc36e3edf139faade930f4069fc31a3e883 Okay then, lnd is up and running, had to create a wallet and give it a night for getting up to speed. I don't know really what took it so long, I'm not using Windows nor 'localhost' in the config so the issues like #1027 are not the case. But there are others like #1545 still open so I'm not going to ponder much on this. I haven't really got any idea how to automatically unlock the wallet after Pi restart (could happen any time!), especially since I only tried to unlock it locally with lncli (why would I enter the password anywhere outside that host?), but let's say that my wallet will only be as stable as my cheap hardware. That's okay for the beta phase. Finally, zap-desktop required me to copy tls.cert and admin.macaroon files to my desktop. If my understanding of macaroon (it's like an authentication cookie, that can later be revoked) is correct then it's not an issue, however it would be nice to have a "$50 daily limit" macaroon file in the future too, just to avoid any big issues when my client machine gets stolen. Thanks to this, I can ignore the silly cloud-based modes and have fully-secure environment of my home network being the only link from me to my money. https://preview.redd.it/11bw3dgw47q11.png?width=836&format=png&auto=webp&s=b7fa7c88d14f22441cbbfc0db036cddfd7ea8424 Aaand there it is. The IP took some time to advertise, I use 1ml.com to see if my node is there. The zap interface (ZapDesktop-linux-amd64-v0.2.2-beta.deb) lacks lots of useful information so I keep learning lncli syntax to get more data about my new peers or the routes offered. The transactions indeed run fast and are ridiculously cheap. I would really love to run Eclair with the same settings but it doesn't seem to support custom lnd (why?). In fact, since all I need is really a lncli wrapper, maybe it will be easy to write my own (seen some web gui which weighs 700MB after downloading all dependencies with npm - SICK!). Zap for iOS alpha test registration is DOWN so I couldn't try it (and I'm not sure if it allows custom lnd selection), Zap for Android doesn't even exist yet... I made a few demo transactions and now I will explore all those fancy t-shirt stores as long as the prices are still in "early investor" mode - I remember times when one could get 0.001 BTC from a faucet... https://preview.redd.it/42sdyoce57q11.png?width=836&format=png&auto=webp&s=7ec8917eaf8f3329d51ce3e30e455254027de0ee If you find any of the facts presented by me false, I am happy to find out more in the discussion. However what I did I did mostly for fun, without paying much attention to the source code, documentation and endless issue lists on github. By no means I claim this tutorial will work for you but I do think I shared the key points and effort estimations to help others decide if they want a full-node LN client too. I'm also interested in some ideas on what to do with it next (rather unlikely that I will share my lnd admin.macaroon with anyone!) especially if it gives me free money. For example, I can open 1000 channels and start earning money from fees, although I no longer have more Bitcoins than the LN capacity yields... I will probably keep updating the software on my Pi until it leaves beta phases and only then will pour more money inside. I'm also keen on improving the general security of my rig and those comments I will answer more seriously.
Sort of a newbie at all this running a node and Bitcoin mining stuff. Got a couple questions… I’m running windows 10 pro 64 bit computer on GUI version of Bitcoin Core 0.17.0.1. Just stock settings. Got a Samsung SSD 970 PRO 1 terabyte drive as well as a standard 3 terabyte drive in my computer. Got a 150 meg connection up and down that has no monthly bandwidth cap.
I’m curious about performance tuning the node; assuming you were tuning it to only run a node and nothing else. . How do you choose what settings in the gui to modify? What computer hardware has the biggest bang for the buck? How do you choose max connections, etc? Are there any sample config file settings to use for various computer profiles and internet connection speeds and monthly bandwidth caps available somewhere? How bad will running a node on my SSD be? Should I just throw the node on the HDD?
Can I run multiple Bitcoin nodes on the same computer? How to install?
Can I run multiple Bitcoin nodes on the same IP address? Do we need to change port settings or anything?
How well does the new raspberry pi 3+ that came out this year run Bitcoin nodes? Install instructions? Are their other low cost tiny computers like that that would be preferred over the Pi?
Do we have any ways of making significant money running a node yet? Any in the future planned?
If block chain is downloaded on one computer & running a node, and you want to copy the block chain data & put that data on another computer to save download time can you do that? What files do you need to port over and where are they located?
Are all the nodes the same for the different Bitcoin coin forks? For example Bitcoin, Bitcoin cash, Bitcoin gold, Bitcoin diamond, Bitcoin private. Would one node support all these, or does each coin require one node with different software? ? Can you run multiple nodes from same IP if they are needed? Heard something about issues running different nodes on the same computer.. Key’s getting overwritten, etc.
How much upsteam & downstream data per day/month does each connection use? I know the initial chain is just under 200 gigs. With a stock setup of what 50 connections that’s what 200 gigs monthly? How much more for each extra connection you allow?
What can we do with a regular node? What can we do with a lightning node? Instructions on getting the lightning part setup? What are the different types of nodes? Heard all these different terms; secure, trusted, honest, pruned, archival, SPV, validating, etc.
SPV vs Validating
And finally dumb question number 10. J The bitmain antminer S9… It can mine any iteration of the various bitcoins? How do you change it form Bitcoin to Bitcoin cash?
Help in verifying my Ledger Nano S transactions with a Bitcoin Full node and Electrum server
From past suggestion I understand I can verify my hardware wallet transactions with the help of Electrum Server. I synced a full bitcoin node with txindex=1 but can not get Electrum app to connect to the local server. I have followed this tutorial online: https://freedomnode.com/blog/69/how-to-install-an-electrum-server-using-full-bitcoin-node-and-electrumx but the link to documentation for electrumx.conf does not work and can not find it. Also tried installing Electrum Personal Server with no luck either. Can someone direct me to a good tutorial for Ubuntu (Kubuntu)?
Lightning node on Windows - testing, get not connected
Ok after testing BTCPay, C-Lightning, LND on Ubuntu I said ok let's try also the Windows implementation, is just few clicks and done (as it is promoted). So I followed this github guide that actually send you to this one. OK, started Bitcoin-core client on Windows 7 x64, with an already synced data folder. Empty bitcoin.conf (none of guides says how to configure the conf file). Wait until the client is full synced. And then launched the windows-node-launcher (from a subfolder inside Bitcoin folder). All good, started slowly and a small popup appeared in systray saying Bitcoin node is syncing. Reviewed the config of Bitcoin and LND through that little app in systray and saw that bitcoin.conf was already filled with some settings. Didn't change anything. After 1 day (with the bitcoin blockchain already synced), the systray popup still says that is syncing and have a red dot. In the tutorial says that we have to leave it to sync until is blue and then green. I said, ok maybe it has more things to do. So I open that LND Output link, to see what is going on... And I see that LND is not well. Says: 2019-04-06 21:11:29.772 [INF] LTND: Version: 0.6.0-beta commit=v0.6-beta-rc3, build=production, logging=default 2019-04-06 21:11:29.772 [INF] LTND: Active chain: Bitcoin (network=mainnet) 2019-04-06 21:11:29.774 [INF] CHDB: Checking for schema update: latest_version=8, db_version=8 2019-04-06 21:11:29.808 [INF] RPCS: password RPC server listening on 127.0.0.1:10009 2019-04-06 21:11:29.808 [INF] RPCS: password gRPC proxy started at 127.0.0.1:8080 2019-04-06 21:11:29.808 [INF] LTND: Waiting for wallet encryption password. Use lncli create to create a wallet, lncli unlock to unlock an existing wallet, or lncli changepassword to change the password of an existing wallet and unlock it. 2019-04-06 21:11:32.673 [INF] LNWL: Opened wallet 2019-04-06 21:11:33.183 [INF] LTND: Primary chain is set to: bitcoin unable to create chain control: unable to connect to bitcoind: unable to subscribe for zmq block events: dial tcp 127.0.0.1:18502: connectex: No connection could be made because the target machine actively refused it. 2019-04-06 21:11:36.087 [INF] LTND: Shutdown complete unable to connect to bitcoind: unable to subscribe for zmq block events: dial tcp 127.0.0.1:18502: connectex: No connection could be made because the target machine actively refused it. 2019-04-06 21:11:39.229 [INF] LTND: Version: 0.6.0-beta commit=v0.6-beta-rc3, build=production, logging=default Now the bitcoin.conf have this: printtoconsole=1 rpcallowip=::/0 whitelist=0.0.0.0/0 datadir=C:\Users\Admin\AppData\Roaming\Bitcoin prune=0 txindex=1 server=1 disablewallet=0 timeout=6000 rpcuser=user rpcpassword=defaultxzxxxxx zmqpubrawblock=tcp://127.0.0.1:18502 zmqpubrawtx=tcp://127.0.0.1:18503 dbcache=2408 And LND.conf have this: (#) Auto-Generated Configuration File (#) Node Launcher version 6.0.2 debuglevel=info restlisten=127.0.0.1:8080 rpclisten=127.0.0.1:10009 tlsextraip=127.0.0.1 listen=127.0.0.1:9735 alias=aliasme color=#00aa7f bitcoin.active=1 bitcoin.node=bitcoind bitcoind.rpchost=127.0.0.1:8332 bitcoind.rpcuser=user bitcoind.rpcpass=defaultxxxxx bitcoind.zmqpubrawblock=tcp://127.0.0.1:18502 bitcoind.zmqpubrawtx=tcp://127.0.0.1:18503 So what is going on here? I will have to wait indefinitely? Somebody can give some help or explanation? Is this LND node working on Windows Server 2008 or 2012?
Another Quarter, Another Release! The Groestlcoin production factory has been working overtime as always in order to deliver even more tech to push Groestlcoin mainstream when the time comes. There have been many new fantastic wallets and exchanges added to Groestlcoins repertoire over the past 3 months so we will re-cap these before moving on to what is new today.
Groestlcoin added to SatWallet – A 3-in-1 service. Multicurrency wallet, exchange and soon a debit card!
ChangeHero announced a week of 0% commission for Groestlcoin trades.
Added to BC Bitcoin cryptocurrency exchange, offering 8 fiat pairs!
Added to Chameleon Pay mobile wallet for Android and iOS!
Added to the Okex' strategic partners cryptocurrency exchange; CoinAll! Offering BTC and ETH pairs! With a 21,5000 GRS Giveaway!
Added to Spark Card! Our second MasterCard for Groestlcoin! Provided by Pungoio, powered by TarjetaSpark and issued by Mastercard!
Added to Swirlpay! A decentralised peer-to-peer payment gateway.
Added to Archos Safe-T Mini hardware wallet! Built around encrypted Chipset memory.
Added to Agama Wallet – A multi-asset encrypted wallet for iOS, Android, Windows, Mac OS and Linux from Komodo.
Added to Mr Coin exchange, with 2 fiat pairs (EUR and HUF)
Added to CryptoFacil Exchange – An exchange powered by Bittrex and is a fiat gateway. Leaving you with the ability to buy GRS with Visa and Mastercard.
Added to Bits Game – A gambling service with 2 'PvP' games
Added to Boost X Change Cryptocurrency exchange!
Added to Sucon's Suworld Korean cryptocurrency exchange!
Added to DCXinsta cryptocurrency exchange and swap service with Fiat pairings.
Added to DCXtrade, an Indian cryptocurrency exchange with BTC and ETH pairings.
Added a fiat KRW pairing on Huobi Korea Cryptocurrency Exchange!
Added to AirGap wallet, allowing you to securely store your GRS on an offline device.
Added as a payment method on hodlhodl, allowing you to make global trades without KYC/AML.
Added to TrustWallet cryptocurrency wallet for iOS and Android
The existing Magnum wallet adds SegWit support for the wallet! Allowing SegWit addresses to be used and created from within the wallet.
Added to CycleBit – Who provide POS Terminals that accept GRS payments anywhere, in-store and online. 130 coffee houses in Spain already accept GRS using Cyclebit POS terminals!
Added to Bitinka Cryptocurrency exchange! The #1 exchange in Latin America with 5 fiat and cryptocurrency pairs!
Added to Atomic wallet, a non-custodial cryptocurrency wallet with encrypted private keys and 40,000 monthly users.
Added to NoMiddleMan cryptocurrency payment gateway, offering no usernames, no registration, no KYC, no fees. Completely free to use!
Added to Blockchair! An advanced data analysis tool, mempool monitor and block explorer!
Added to SecuX V20, SecuX W20 and SecuX W10 hardware wallets!
Re-forged: Groestlcoin Samourai
Groestlcoin Samourai is a wallet for the streets. A modern Groestlcoin wallet hand-forged to keep your transactions private, your identity masked, and your funds secure. Its main advantages are its extreme portability and is the most secure Groestlcoin mobile HD wallet. We've built a wallet that Groestlcoin deserves. If you are looking for a wallet that Silicon Valley will never build, the regulators will never allow, and the VC's will never invest in, this is the perfect wallet for you. ![Groestlcoin Samourai Release Video](http://img.youtube.com/vi/i3WU8Tde8XQ/0.jpg)
Head over to the Groestlcoin Samourai Release Page here for the full release announcement.
Groestlimage turns any file into a mnemonic phrase allowing users to generate Groestlcoin private keys and addresses based on the data URI of the provided file. A picture is worth a thousand Groestls.
Turn any image, document or audio file into a BIP39 mnemonic phrase
Groestlcoin Core Config Generator is a simple GUI to configure the groestlcoin.conf file – A developers dream tool! Each configuration option is available via the user interface, grouped by what attributes they affect. For ease of getting started with a new configuration, a variety of preset "node classes" are available on the right-hand-side of the screen. Selecting a preset will load our recommended base configuration for a node fitting that description, at which point you can then tune the configuration at the single option level.
Choose between Mining, Non-Standard Ports, Low Bandwidth, Pruned, Raspberry Pi, Tor, Testnet, Regtest, Non-Syncing and Lightning Éclair presets.
Groestlcoin Simple Push TX is a server to push Groestlcoin transactions via SMS. Now everybody can send new transactions via SMS if the Internet is not usable (i.e. blocked by government entities or becomes otherwise unavailable).
Ability to push either Base64 or Hex-Encoded Raw Transactions via SMS.
Send SMS transactions to PushTX through the number +32460224477 (+32460224GRS)
Electrum-GRS is Groestlcoins #1 thin-client for Windows, MacOS, Linux and Android, based on a client-server protocol. Supporting multi-sig wallets without the bloat of downloading the entire blockchain.
New Features (Universal)
Electrum Protocol: The client's "User Agent" has been changed from "3.3.6" to "electrum/3.3.6". Other libraries connecting to servers can consider not "spoofing" to be Electrum
Added CoinGecko.com fiat rate provider. Changed default provider to CoinGecko.com
Minor bugfixes and usability improvements.
New Features (Windows, MacOS, Linux)
Fix Crash during 2FA wallet creation
Fix Synchroniser so that it does not keep resubscribing to addresses of already closed wallets.
Fix removing addresses/keys from imported wallets
The logging system has been overhauled. Logs can now also optionally be written to disk, disabled by default.
Fix a bug in the synchroniser where client could get stuck. Also show the progress of history sync in the GUI.
Fix Revealer in Windows and MacOS binaries
Ledger Nano X is now recognised, supporting mainnet and testnet
KeepKey is now recognised and supports mainnet and testnet
Device was not getting detected using Windows binary
Support Firmware 6.0.0+
Implement "Seedless" mode
Coin Control in QT – Implemented freezing individual UTXOs in addition to freezing addresses
Fix CPFP – The fees already paid by the parent were not included in the calculation, so it was always overestimated.
Testnet – There is now a warning when the client is started in testnet mode as there were several reports of users getting scammed through social engineering.
CoinChooser – Performance of creating transactions has been improved significantly for larger wallets.
Importing/Sweeping WIF keys: Stricter checks
Several other minor bugfixes and usability improvements.
New Features (Android)
Fix rare crash when changing exchange rate settings
Fix bug with local transactions
Allow selecting Fiat Rate providers without historical data
04-07 09:48 - 'Lightning node on Windows - testing, get not connected' (self.Bitcoin) by /u/Mr--Robot removed from /r/Bitcoin within 845-855min
''' Ok after testing BTCPay, C-Lightning, LND on Ubuntu I said ok let's try also the Windows implementation, is just few clicks and done (as it is promoted). So I followed this [github guide]1 that actually send you to [this one]2 . OK, started Bitcoin-core client on Windows 7 x64, with an already synced data folder. Empty bitcoin.conf (none of guides says how to configure the conf file). Wait until the client is full synced. And then launched the windows-node-launcher (from a subfolder inside Bitcoin folder). All good, started slowly and a small popup appeared in systray saying Bitcoin node is syncing. Reviewed the config of Bitcoin and LND through that little app in systray and saw that bitcoin.conf was already filled with some settings. Didn't change anything. After 1 day (with the bitcoin blockchain already synced), the systray popup still says that is syncing and have a red dot. In the tutorial says that we have to leave it to sync until is blue and then green. I said, ok maybe it has more things to do. So I open that LND Output link, to see what is going on... And I see that LND is not well. Says: 2019-04-06 21:11:29.772 [INF] LTND: Version: 0.6.0-beta commit=v0.6-beta-rc3, build=production, logging=default 2019-04-06 21:11:29.772 [INF] LTND: Active chain: Bitcoin (network=mainnet) 2019-04-06 21:11:29.774 [INF] CHDB: Checking for schema update: latest_version=8, db_version=8 2019-04-06 21:11:29.808 [INF] RPCS: password RPC server listening on 127.0.0.1:10009 2019-04-06 21:11:29.808 [INF] RPCS: password gRPC proxy started at 127.0.0.1:8080 2019-04-06 21:11:29.808 [INF] LTND: Waiting for wallet encryption password. Use lncli create to create a wallet, lncli unlock to unlock an existing wallet, or lncli changepassword to change the password of an existing wallet and unlock it. 2019-04-06 21:11:32.673 [INF] LNWL: Opened wallet 2019-04-06 21:11:33.183 [INF] LTND: Primary chain is set to: bitcoin unable to create chain control: unable to connect to bitcoind: unable to subscribe for zmq block events: dial tcp 127.0.0.1:18502: connectex: No connection could be made because the target machine actively refused it. 2019-04-06 21:11:36.087 [INF] LTND: Shutdown complete unable to connect to bitcoind: unable to subscribe for zmq block events: dial tcp 127.0.0.1:18502: connectex: No connection could be made because the target machine actively refused it. 2019-04-06 21:11:39.229 [INF] LTND: Version: 0.6.0-beta commit=v0.6-beta-rc3, build=production, logging=default Now the bitcoin.conf have this: printtoconsole=1 rpcallowip=::/0 whitelist=0.0.0.0/0 datadir=C:\Users\Admin\AppData\Roaming\Bitcoin prune=0 txindex=1 server=1 disablewallet=0 timeout=6000 rpcuser=user rpcpassword=defaultxzxxxxx zmqpubrawblock=[link]3 zmqpubrawtx=[link]4 dbcache=2408 And LND.conf have this: (#) Auto-Generated Configuration File (#) Node Launcher version 6.0.2 debuglevel=info restlisten=127.0.0.1:8080 rpclisten=127.0.0.1:10009 tlsextraip=127.0.0.1 listen=127.0.0.1:9735 alias=aliasme color=#00aa7f bitcoin.active=1 bitcoin.node=bitcoind bitcoind.rpchost=127.0.0.1:8332 bitcoind.rpcuser=user bitcoind.rpcpass=defaultxxxxx bitcoind.zmqpubrawblock=[link]3 bitcoind.zmqpubrawtx=[link]4 So what is going on here? I will have to wait indefinitely? Somebody can give some help or explanation? Is this LND node working on Windows Server 2008 or 2012? ''' Lightning node on Windows - testing, get not connected Go1dfish undelete link unreddit undelete link Author: Mr--Robot 1: g*thub.c*m/light**ng**o*e*-users/no**-launc**r 2: me*ium.*o**lig*tn**g-p*wer-users/w*n**ws-m**os-l**ht*i*g-ne*work-2*4bd5034340 3: 127.0.0**:1*5*2 4: 127*0.0**:185*3 5: 1**.0.0*1:185*2 6: 12*.0**.1:*8503 Unknown links are censored to prevent spreading illicit content.
I run a full Bitcoin node. Lately I've been playing around with setting up solo mining with BFGMiner, just experimenting with CPUs and GPUs, in full knowledge its a purely academic thing with zero chance of succeeding, intending only to deepen my understanding of the system. Seems to work well, for the most part. Except when I point my S9's at the pool, I only get about 250 GH instead of 13.5 TH each. I've made sure to turn off overt asciboost when I point them at my experiment, no effect, and they definitely are connected. Does anyone else play around with this stuff and might know the solution already? FWIW: Ubuntu Bitcoin Core v0.17 BFGMiner v5.5.0 Bitcoin.conf, server, daemon, listen, and txindex set to 1. rpcuser and rpcpassword are set, rpcallowip and rpcport are all good(and proven as I can connect other pcs over the LAN just fine for cpu/gpu) BFGMiner -o http://127.0.01:8332 -u user - pword --generate-to $address --coinbase-sig "LOL" --stratum-port:3333 Any suggestions?
## bitcoin.conf configuration file. Lines beginning with # are comments. ## # Network-related settings: # Note that if you use testnet or regtest, particularly with the options # addnode, connect, port, bind, rpcport, rpcbind or wallet, you will also # want to read "[Sections]" further down. # Run on the test network instead of the real bitcoin ... Bitcoin.conf Configuration File. All command-line options (except for -conf) may be specified in a configuration file, and all configuration file options may also be specified on the command line. Command-line options override values set in the configuration file. The configuration file is a list of setting=value pairs, one per line, with optional comments starting with the '#' character. The ... If you don’t want to have the whole bitcoin blockchain on your computer or server you don’t have to. There is an option that deletes previously verified blocks from your local copy. This is called pruning. To enable it you have to add the following line to your bitcoind config. This config file is usually … Continue reading "How to enable pruning on bitcoind" Bitcoin Core . The base of a sovereign Bitcoin node is a fully validating Bitcoin client. We are using Bitcoin Core, the reference implementation, but not the only option available.This application will download the whole blockchain from other peers and validate every single transaction that ever happened. nano ~/.bitcoin/bitcoin.conf. Enter: server=1 daemon=1 rpcuser=USERNAME rpcpassword=PASSWORD. Set the logs and password in place of USERNAME and PASSWORD. Now daemon is created to run in the background: sudo nano /etc/init/bitcoind.conf. Enter: description «bitcoind» start on filesystem. stop on runlevel [!2345] oom never. expect daemon. respawn. respawn limit 10 60 # 10 times in 60 seconds ...
How to run a Bitcoin Full Node(Linux + Build from Source)
Ferramentas (Tools) - Debug Console - Masternode configuration file Coloque a linha com (Put the rows with): ALIAS_Masternode SEU_IP:58697 SUP_PRIVATE_KEY SEU_TXHASH SEU_TXINDEX Exemplo (For example): a noi ci serve il primo percorso quindi vai la e crea un file eclair.conf se non è già stato creato ed inserisci questo al suo interno: (rcp user e pass devono coincidere con quelli di bitcoin.conf) In this tutorial, I will show you on Windows 10 how to setup ZAP with work with Lightning Network Daemon, and how to open channel. Author's LN node URI: 0233... In this video we will build Bitcoin Core from source and run a Bitcoin full node on a linux server. Links: https://github.com/bitcoin/bitcoin Commands: $ lsb... Connect to my Lightning node! 022[email protected]188.8.131.52:9735 Opinion produced in this video is just my own ...