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W. J. van der Laan d8f1e1327f
Merge bitcoin/bitcoin#22112: Force port 0 in I2P 
4101ec9d2e doc: mention that we enforce port=0 in I2P (Vasil Dimov)
e0a2b390c1 addrman: reset I2P ports to 0 when loading from disk (Vasil Dimov)
41cda9d075 test: ensure I2P ports are handled as expected (Vasil Dimov)
4f432bd738 net: do not connect to I2P hosts on port!=0 (Vasil Dimov)
1f096f091e net: distinguish default port per network (Vasil Dimov)
aeac3bce3e net: change I2P seeds' ports to 0 (Vasil Dimov)
38f900290c net: change assumed I2P port to 0 (Vasil Dimov)

Pull request description:

  _This is an alternative to https://github.com/bitcoin/bitcoin/pull/21514, inspired by https://github.com/bitcoin/bitcoin/pull/21514#issuecomment-815049933. They are mutually exclusive. Just one of them should be merged._

  Change assumed ports for I2P to 0 (instead of the default 8333) as this is closer to what actually happens underneath with SAM 3.1 (https://github.com/bitcoin/bitcoin/pull/21514#issuecomment-812632520, https://github.com/bitcoin/bitcoin/pull/21514#issuecomment-816564719).

  Don't connect to I2P peers with advertised port != 0 (we don't specify a port to our SAM 3.1 proxy and it always connects to port = 0).

  Note, this change:
  * Keeps I2P addresses with port != 0 in addrman and relays them to others via P2P gossip. There may be non-bitcoin-core-22.0 peers using SAM 3.2 and for them such addresses may be useful.
  * Silently refuses to connect to I2P hosts with port != 0. This is ok for automatically chosen peers from addrman. Not so ok for peers provided via `-addnode` or `-connect` - a user who specifies `foo.b32.i2p:1234` (non zero port) may wonder why "nothing is happening".

  Fixes #21389

ACKs for top commit:
  laanwj:
    Code review ACK 4101ec9d2e
  jonatack:
    re-ACK 4101ec9d2e per `git range-diff efff9c3 0b0ee03 4101ec9`, built with DDEBUG_ADDRMAN, did fairly extensive testing on mainnet both with and without a peers.dat / -dnsseeds=0 to test boostrapping.

Tree-SHA512: 0e3c019e1dc05e54f559275859d3450e0c735596d179e30b66811aad9d5b5fabe3dcc44571e8f7b99f9fe16453eee393d6e153454dd873b9ff14907d4e6354fe
2021-07-13 14:52:41 +02:00
..
man scripted-diff: Fix typo in stub manual pages 2021-01-12 16:46:55 +01:00
release-notes doc: Add doc/release-notes/release-notes-0.21.1.md 2021-05-02 09:59:14 +02:00
.gitignore Ignore Doxyfile generated from Doxyfile.in template. 2017-04-07 16:28:12 +02:00
assets-attribution.md [doc] Merge doc/assets-attribution.md into contrib/debian/copyright 2015-09-18 18:14:42 +02:00
benchmarking.md doc: update doc/benchmarking.md 2021-06-24 11:15:29 +02:00
bips.md doc: Update bips.md for 0.21.1 2021-05-12 10:06:37 +02:00
bitcoin-conf.md doc: add signet to doc/bitcoin-conf.md 2021-03-08 00:44:54 +01:00
bitcoin_logo_doxygen.png Lossless image optimization 2013-12-02 10:10:22 +01:00
build-android.md Qt: add Android packaging support 2021-03-21 22:33:27 +01:00
build-freebsd.md docs: improve make with parallel jobs description. 2021-05-14 08:45:27 +08:00
build-netbsd.md docs: improve make with parallel jobs description. 2021-05-14 08:45:27 +08:00
build-openbsd.md doc: recommend --disable-external-signer in OpenBSD build guide 2021-06-24 14:58:42 +02:00
build-osx.md doc: note that brew installed qt is not supported 2021-05-17 21:36:08 -04:00
build-unix.md docs: improve make with parallel jobs description. 2021-05-14 08:45:27 +08:00
build-windows.md doc: improve note on choosing posix mingw32 2021-05-27 19:00:34 -04:00
dependencies.md doc: Document minimum required libc++ version 2021-06-28 05:10:56 +03:00
descriptors.md Add tr() descriptor (derivation only, no signing) 2021-05-24 12:14:16 -07:00
developer-notes.md Merge bitcoin/bitcoin#18568: doc: Clarify developer notes about constant naming 2021-06-30 09:23:15 +08:00
dnsseed-policy.md Correct spelling mistakes in doc folder 2015-10-18 06:25:43 +10:00
Doxyfile.in configure: add --enable-external-signer 2021-02-21 16:27:10 +01:00
external-signer.md Move external signer out of wallet module 2021-04-08 17:56:00 +02:00
files.md doc: fix grammar in doc/files.md 2021-06-21 15:27:57 +02:00
fuzzing.md doc: describe in fuzzing.md how to reproduce a CI crash 2021-05-25 15:18:50 +02:00
gitian-building.md doc: move gitian building to external repo 2017-09-25 15:45:38 +02:00
guix.md docs: Point to contrib/guix/README.md in doc/guix.md 2021-01-08 11:40:01 -05:00
i2p.md doc: mention that we enforce port=0 in I2P 2021-07-09 11:19:38 +02:00
init.md doc: Replace tabs for spaces 2021-02-04 12:06:13 +00:00
JSON-RPC-interface.md Update 'Secure string handling' 2020-12-29 01:49:30 +05:30
multiprocess.md multiprocess: Add comments and documentation 2021-04-23 03:02:50 -05:00
productivity.md doc: Add libnatpmp stuff 2021-01-07 18:07:10 +02:00
psbt.md doc: fix/improve analyzepsbt in doc/psbt.md 2019-05-19 17:31:37 +02:00
README.md doc: doc/README.md IRC updates 2021-06-27 21:26:03 +02:00
README_doxygen.md doc: Improve doxygen readme navigation section 2019-09-23 19:22:06 -04:00
README_windows.txt doc: Remove version numbers from READMEs 2017-04-05 09:40:48 +02:00
reduce-memory.md doc: update reduce-memory.md peer connections info 2021-04-17 20:17:59 +02:00
reduce-traffic.md doc: Use precise permission flags where possible 2020-07-10 15:37:42 +02:00
release-notes.md doc: Final merge of release notes snippets 2021-06-21 16:31:06 +02:00
release-process.md doc: Remove unused section from release process 2021-06-28 11:17:24 +02:00
REST-interface.md rpc: deprecate addresses and reqSigs from rpc outputs 2021-03-23 10:51:43 -04:00
shared-libraries.md doc: libbitcoinconsensus: add missing error code description, fix NBitcoin link 2020-12-05 13:37:00 +01:00
tor.md doc: update tor.md with removal of tor v2 support 2021-06-06 19:05:01 +02:00
translation_process.md doc: Fix external links (IRC, ...) 2021-05-31 17:27:57 +02:00
translation_strings_policy.md doc: Do not translate technical or extremely rare errors 2020-05-05 04:46:08 +03:00
zmq.md doc: Adjust ZMQ usage to support multiple interfaces 2020-09-23 23:14:28 +02:00

README.md

Bitcoin Core

Setup

Bitcoin Core is the original Bitcoin client and it builds the backbone of the network. It downloads and, by default, stores the entire history of Bitcoin transactions, which requires a few hundred gigabytes of disk space. Depending on the speed of your computer and network connection, the synchronization process can take anywhere from a few hours to a day or more.

To download Bitcoin Core, visit bitcoincore.org.

Running

The following are some helpful notes on how to run Bitcoin Core on your native platform.

Unix

Unpack the files into a directory and run:

  • bin/bitcoin-qt (GUI) or
  • bin/bitcoind (headless)

Windows

Unpack the files into a directory, and then run bitcoin-qt.exe.

macOS

Drag Bitcoin Core to your applications folder, and then run Bitcoin Core.

Need Help?

Building

The following are developer notes on how to build Bitcoin Core on your native platform. They are not complete guides, but include notes on the necessary libraries, compile flags, etc.

Development

The Bitcoin repo's root README contains relevant information on the development process and automated testing.

Resources

Miscellaneous

License

Distributed under the MIT software license.