mirror of
https://github.com/ElementsProject/lightning.git
synced 2024-11-20 02:27:51 +01:00
b0da807700
This commit will remove parameter descriptions from RPC markdown but we will fix it in next commits by reading these descriptions directly from json. - Removing parameter description text - Adding/removing newlines for cleaner formatting - Adding ERRORS title wherever needed - Updating titles for consistency - Adding resources links
202 lines
6.7 KiB
Markdown
202 lines
6.7 KiB
Markdown
lightningd -- Daemon for running a Lightning Network node
|
|
=========================================================
|
|
|
|
SYNOPSIS
|
|
--------
|
|
|
|
```bash
|
|
lightningd [--conf=<config-file>] [OPTIONS]
|
|
```
|
|
|
|
DESCRIPTION
|
|
-----------
|
|
|
|
**lightningd** starts the Core Lightning daemon, which implements a
|
|
standards-compliant Lightning Network node.
|
|
|
|
CONFIGURATION OPTIONS
|
|
---------------------
|
|
|
|
* **--conf**=*FILE*
|
|
Specify configuration file. If not an absolute path, will be relative
|
|
from the lightning-dir location. Defaults to *config*.
|
|
|
|
* **--lightning-dir**=*DIR*
|
|
Set the directory for the Core Lightning daemon. Defaults to
|
|
*$HOME/.lightning*.
|
|
|
|
MORE OPTIONS
|
|
------------
|
|
|
|
Command line options are mirrored as configuration options in the
|
|
configuration file, so `foo` in the configuration file simply becomes
|
|
`--foo` on the command line, and `foo=bar` becomes `--foo=bar`.
|
|
|
|
See lightningd-config(5) for a comprehensive list of all available
|
|
options.
|
|
|
|
LOGGING AND COMMANDING CORE LIGHTNING
|
|
-------------------------------------
|
|
|
|
By default, Core Lightning will log to the standard output.
|
|
To log to a specific file, use **--log-file**=*PATH*.
|
|
Sending SIGHUP will cause Core Lightning to reopen this file,
|
|
for example to do log rotation.
|
|
|
|
Core Lightning will set up a Unix domain socket for receiving
|
|
commands.
|
|
By default this will be the file **lightning-rpc** in your
|
|
specified **lightning-dir**.
|
|
You can use lightning-cli(1) to send commands to Core Lightning
|
|
once **lightningd** has started; you need to match the
|
|
**--lightning-dir** and **--rpc-file** options between them.
|
|
|
|
Commands for Core Lightning are described in various manpages
|
|
in section 7, with the common prefix **lightning-**.
|
|
|
|
QUICK START
|
|
-----------
|
|
|
|
First, decide on and create a directory for *lightning-dir*, or just use
|
|
the default *$HOME/.lightning*. Then create a *config* file in this
|
|
directory containing your configuration.
|
|
|
|
Your other main preparation would be to set up a mainnet Bitcoin
|
|
fullnode, i.e. run a bitcoind(1) instance. The rest of this quick start
|
|
guide will assume you are reckless and want to spend real funds on
|
|
Lightning: otherwise indicate *network=testnet* in your *config* file explicitly.
|
|
|
|
Core Lightning needs to communicate with the Bitcoin Core RPC. You can set
|
|
this up using *bitcoin-datadir*, *bitcoin-rpcconnect*,
|
|
*bitcoin-rpcport*, *bitcoin-rpcuser*, and *bitcoin-rpcpassword* options
|
|
in your *config* file.
|
|
|
|
Finally, just to keep yourself sane, decide on a log file name and
|
|
indicate it using *log-file=lightningd.log* in your *config* file. You
|
|
might be interested in viewing it periodically as you follow along on
|
|
this guide.
|
|
|
|
Once the **bitcoind** instance is running, start lightningd(8):
|
|
|
|
$ lightningd --lightning-dir=$HOME/.lightning --daemon
|
|
|
|
This starts **lightningd** in the background due to the *--daemon*
|
|
option.
|
|
|
|
Check if things are working:
|
|
|
|
$ lightning-cli --lightning-dir=$HOME/.lightning help
|
|
$ lightning-cli --lightning-dir=$HOME/.lightning getinfo
|
|
|
|
The **getinfo** command in particular will return a *blockheight* field,
|
|
which indicates the block height to which **lightningd** has been
|
|
synchronized to (this is separate from the block height that your
|
|
**bitcoind** has been synchronized to, and will always lag behind
|
|
**bitcoind**). You will have to wait until the *blockheight* has reached
|
|
the actual blockheight of the Bitcoin network.
|
|
|
|
Before you can get funds offchain, you need to have some funds onchain
|
|
owned by **lightningd** (which has a separate wallet from the
|
|
**bitcoind** it connects to). Get an address for **lightningd** via
|
|
lightning-newaddr(7) command as below (*--lightning-dir* option has been
|
|
elided, specify it if you selected your own *lightning-dir*):
|
|
|
|
$ lightning-cli newaddr
|
|
|
|
This will provide a native SegWit bech32 address. In case all your money
|
|
is in services that do not support native SegWit and have to use
|
|
P2SH-wrapped addresses, instead use:
|
|
|
|
$ lightning-cli newaddr p2sh-segwit
|
|
|
|
Transfer a small amount of onchain funds to the given address. Check the
|
|
status of all your funds (onchain and on-Lightning) via
|
|
lightning-listfunds(7):
|
|
|
|
$ lightning-cli listfunds
|
|
|
|
Now you need to look for an arbitrary Lightning node to connect to,
|
|
which you can do by using dig(1) and querying *lseed.bitcoinstats.com*:
|
|
|
|
$ dig lseed.bitcoinstats.com A
|
|
|
|
This will give 25 IPv4 addresses, you can select any one of those. You
|
|
will also need to learn the corresponding public key, which you can
|
|
determine by searching the IP addrss on <https://1ml.com/> . The public
|
|
key is a long hex string, like so:
|
|
*024772ee4fa461febcef09d5869e1238f932861f57be7a6633048514e3f56644a1*.
|
|
(this example public key is not used as of this writing)
|
|
|
|
After determining a public key, use lightning-connect(7) to connect to
|
|
that public key at that IP:
|
|
|
|
$ lightning-cli connect $PUBLICKEY $IP
|
|
|
|
Then open a channel to that node using lightning-fundchannel(7):
|
|
|
|
$ lightning-cli fundchannel $PUBLICKEY $SATOSHI
|
|
|
|
This will require that the funding transaction be confirmed before you
|
|
can send funds over Lightning. To track this, use lightning-listpeers(7)
|
|
and look at the *state* of the channel:
|
|
|
|
$ lightning-cli listpeers $PUBLICKEY
|
|
|
|
The channel will initially start with a *state* of
|
|
*CHANNELD\_AWAITING\_LOCKIN*. You need to wait for the channel *state*
|
|
to become *CHANNELD\_NORMAL*, meaning the funding transaction has been
|
|
confirmed deeply.
|
|
|
|
Once the channel *state* is *CHANNELD\_NORMAL*, you can start paying
|
|
merchants over Lightning. Acquire a Lightning invoice from your favorite
|
|
merchant, and use lightning-pay(7) to pay it:
|
|
|
|
$ lightning-cli pay $INVOICE
|
|
|
|
ERRORS CODE
|
|
---
|
|
|
|
- 1: Generic lightning-cli error
|
|
- 10: Error executing subdaemons
|
|
- 11: Error locking pidfile (often another lightningd running)
|
|
- 20: Generic error related to HSM secret
|
|
- 21: HSM secret is encrypted
|
|
- 22: Bad password used to decrypt the HSM secred
|
|
- 23: Error caused from the I/O operation during a HSM decryption/encryption operation
|
|
- 30: Wallet database does not match (network or hsm secret)
|
|
|
|
|
|
BUGS
|
|
----
|
|
|
|
You should report bugs on our github issues page, and maybe submit a fix
|
|
to gain our eternal gratitude!
|
|
|
|
AUTHOR
|
|
------
|
|
|
|
ZmnSCPxj <<ZmnSCPxj@protonmail.com>> wrote the initial version of
|
|
this man page, but many others did the hard work of actually
|
|
implementing a standards-compliant Lightning Network node
|
|
implementation.
|
|
|
|
SEE ALSO
|
|
--------
|
|
|
|
lightningd-rpc(7),
|
|
lightning-listconfigs(7), lightningd-config(5), lightning-cli(1),
|
|
lightning-newaddr(7), lightning-listfunds(7), lightning-connect(7),
|
|
lightning-fundchannel(7), lightning-listpeers(7), lightning-pay(7),
|
|
lightning-hsmtool(8)
|
|
|
|
RESOURCES
|
|
---------
|
|
|
|
Main web site: <https://github.com/ElementsProject/lightning>
|
|
|
|
COPYING
|
|
-------
|
|
|
|
Note: the modules in the ccan/ directory have their own licenses, but
|
|
the rest of the code is covered by the BSD-style MIT license.
|