raspiblitz/FAQ.cl.md

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# C-lightning on the RaspiBlitz FAQ
- [C-lightning official documentation](#c-lightning-official-documentation)
- [Commands and aliases](#commands-and-aliases)
- [Directories](#directories)
- [Config file](#config-file)
- [Default values](#default-values)
- [All possible config settings](#all-possible-config-settings)
- [Plug-ins](#plug-ins)
- [General info](#general-info)
- [Directories](#directories-1)
- [Implemented plugins](#implemented-plugins)
- [Add a custom plugin](#add-a-custom-plugin)
- [CLBOSS](#clboss)
- [Feeadjuster](#feeadjuster)
- [Dual funded channels](#dual-funded-channels)
- [Reading](#reading)
- [Setting up](#setting-up)
- [Open a dual funded channel](#open-a-dual-funded-channel)
- [Fundchannel syntax](#fundchannel-syntax)
- [Offers](#offers)
- [About the feature bits](#about-the-feature-bits)
- [Testnets](#testnets)
- [Backups](#backups)
- [Seed](#seed)
- [Channel database](#channel-database)
- [Recovery](#recovery)
- [Script file help list](#script-file-help-list)
## C-lightning official documentation
* https://lightning.readthedocs.io/
* the lightningd is built by deafult with
## Commands and aliases
* Check if the C-lightning daemon is running:
```
sudo systemctl status lightningd
```
* Follow it's system output for debugging:
```
sudo journalctl -fu lightningd
```
* The logs can be accessed in the menu `SYSTEM` - `CLLOG`
or with the alias: `cllog`
* The frequently used commands are shortened with alisases. Check them with the command `alias`:
```
alias cl='sudo -u bitcoin /usr/local/bin/lightning-cli --conf=/home/bitcoin/.lightning/config'
alias clconf='sudo nano /home/bitcoin/.lightning/config'
alias cllog='sudo tail -n 30 -f /home/bitcoin/.lightning/bitcoin/cl.log'
```
## Directories
* All data is stored on the disk in:
`/mnt/hdd/app-data/.lightningd`
* and symlinked to:
`/home/bitcoin/.lightningd`
## Config file
* Edit in the menu `SYSTEM` - `CLNCONF` or use the alias `clconf`
### Default values
* on the RaspiBlitz for mainnet
```
network=bitcoin
announce-addr=127.0.0.1:9736
log-file=cl.log
log-level=info
plugin-dir=/home/bitcoin/cln-plugins-enabled
# Tor settings
proxy=127.0.0.1:9050
bind-addr=127.0.0.1:9736
addr=statictor:127.0.0.1:9051/torport=9736
always-use-proxy=true
```
### All possible config settings
* can be shown by running:
`lightningd --help`
* Place the settings in the config file without the `--` and restart lightningd
```
Usage: lightningd
A bitcoin lightning daemon (default values shown for network: bitcoin).
--conf=<file> Specify configuration file
--lightning-dir=<dir> Set base directory: network-specific subdirectory is
under here (default: "/home/admin/.lightning")
--network <arg> Select the network parameters (bitcoin, testnet,
signet, regtest, litecoin or litecoin-testnet)
(default: bitcoin)
--mainnet Alias for --network=bitcoin
--testnet Alias for --network=testnet
--signet Alias for --network=signet
--allow-deprecated-apis <arg> Enable deprecated options, JSONRPC commands, fields,
etc. (default: true)
--rpc-file <arg> Set JSON-RPC socket (or /dev/tty)
(default: "lightning-rpc")
--plugin <arg> Add a plugin to be run (can be used multiple times)
--plugin-dir <arg> Add a directory to load plugins from (can be used
multiple times)
--clear-plugins Remove all plugins added before this option
--disable-plugin <arg> Disable a particular plugin by filename/name
--important-plugin <arg> Add an important plugin to be run (can be used multiple
times). Die if the plugin dies.
--always-use-proxy <arg> Use the proxy always (default: false)
--daemon Run in the background, suppress stdout/stderr
--wallet <arg> Location of the wallet database.
--large-channels|--wumbo Allow channels larger than 0.16777215 BTC
--experimental-dual-fund experimental: Advertise dual-funding and allow peers to
establish channels via v2 channel open protocol.
--experimental-onion-messages EXPERIMENTAL: enable send, receive and relay of onion
messages
--experimental-offers EXPERIMENTAL: enable send and receive of offers (also
sets experimental-onion-messages)
--experimental-shutdown-wrong-funding EXPERIMENTAL: allow shutdown with alternate txids
--help|-h Print this message.
--rgb <arg> RRGGBB hex color for node
--alias <arg> Up to 32-byte alias for node
--pid-file=<file> Specify pid file
(default: "/home/admin/.lightning/lightningd-bitcoin.pid")
--ignore-fee-limits <arg> (DANGEROUS) allow peer to set any feerate
(default: false)
--watchtime-blocks <arg> Blocks before peer can unilaterally spend funds
(default: 144)
--max-locktime-blocks <arg> Maximum blocks funds may be locked for (default: 2016)
--funding-confirms <arg> Confirmations required for funding transaction
(default: 3)
--cltv-delta <arg> Number of blocks for cltv_expiry_delta (default: 34)
--cltv-final <arg> Number of blocks for final cltv_expiry (default: 18)
--commit-time=<millseconds> Time after changes before sending out COMMIT
(default: 10)
--fee-base <arg> Millisatoshi minimum to charge for HTLC (default: 1000)
--rescan <arg> Number of blocks to rescan from the current head, or
absolute blockheight if negative (default: 15)
--fee-per-satoshi <arg> Microsatoshi fee for every satoshi in HTLC
(default: 10)
--max-concurrent-htlcs <arg> Number of HTLCs one channel can handle concurrently.
Should be between 1 and 483 (default: 30)
--min-capacity-sat <arg> Minimum capacity in satoshis for accepting channels
(default: 10000)
--addr <arg> Set an IP address (v4 or v6) to listen on and announce
to the network for incoming connections
--bind-addr <arg> Set an IP address (v4 or v6) to listen on, but not
announce
--announce-addr <arg> Set an IP address (v4 or v6) or .onion v3 to announce,
but not listen on
--offline Start in offline-mode (do not automatically reconnect
and do not accept incoming connections)
--autolisten <arg> If true, listen on default port and announce if it
seems to be a public interface (default: true)
--proxy <arg> Set a socks v5 proxy IP address and port
--tor-service-password <arg> Set a Tor hidden service password
--experimental-accept-extra-tlv-types <arg> Comma separated list of extra TLV types to accept.
--disable-dns Disable DNS lookups of peers
--encrypted-hsm Set the password to encrypt hsm_secret with. If no
password is passed through command line, you will be
prompted to enter it.
--rpc-file-mode <arg> Set the file mode (permissions) for the JSON-RPC socket
(default: "0600")
--force-feerates <arg> Set testnet/regtest feerates in sats perkw,
opening/mutual_close/unlateral_close/delayed_to_us/htlc_resolution/penalty:
if fewer specified, last number applies to remainder
--subdaemon <arg> Arg specified as SUBDAEMON:PATH. Specifies an alternate
subdaemon binary. If the supplied path is relative the
subdaemon binary is found in the working directory.
This option may be specified multiple times. For
example, --subdaemon=hsmd:remote_signer would use a
hypothetical remote signing subdaemon.
--log-level <arg> log level (io, debug, info, unusual, broken) [:prefix]
(default: info)
--log-timestamps <arg> prefix log messages with timestamp (default: true)
--log-prefix <arg> log prefix (default: lightningd)
--log-file=<file> log to file instead of stdout
--version|-V Print version and exit
--autocleaninvoice-cycle <arg> Perform cleanup of expired invoices every given
seconds, or do not autoclean if 0
--autocleaninvoice-expired-by <arg> If expired invoice autoclean enabled, invoices that
have expired for at least this given seconds are
cleaned
--fetchinvoice-noconnect Don't try to connect directly to fetch an invoice.
--bitcoin-datadir <arg> -datadir arg for bitcoin-cli
--bitcoin-cli <arg> bitcoin-cli pathname
--bitcoin-rpcuser <arg> bitcoind RPC username
--bitcoin-rpcpassword <arg> bitcoind RPC password
--bitcoin-rpcconnect <arg> bitcoind RPC host to connect to
--bitcoin-rpcport <arg> bitcoind RPC host's port
--bitcoin-retry-timeout <arg> how long to keep retrying to contact bitcoind before
fatally exiting
--commit-fee <arg> Percentage of fee to request for their commitment
--funder-policy <arg> Policy to use for dual-funding requests. [match,
available, fixed]
--funder-policy-mod <arg> Percent to apply policy at (match/available); or amount
to fund (fixed)
--funder-min-their-funding <arg> Minimum funding peer must open with to activate our
policy
--funder-max-their-funding <arg> Maximum funding peer may open with to activate our
policy
--funder-per-channel-min <arg> Minimum funding we'll add to a channel. If we can't
meet this, we don't fund
--funder-per-channel-max <arg> Maximum funding we'll add to a channel. We cap all
contributions to this
--funder-reserve-tank <arg> Amount of funds we'll always leave available.
--funder-fuzz-percent <arg> Percent to fuzz the policy contribution by. Defaults to
5%. Max is 100%
--funder-fund-probability <arg> Percent of requests to consider. Defaults to 100%.
Setting to 0% will disable dual-funding
--funder-lease-requests-only <arg> Only fund lease requests. Defaults to true if channel
lease rates are being advertised
--lease-fee-base-msat <arg> Channel lease rates, base fee for leased funds, in
satoshi.
--lease-fee-basis <arg> Channel lease rates, basis charged for leased funds
(per 10,000 satoshi.)
--lease-funding-weight <arg> Channel lease rates, weight we'll ask opening peer to
pay for in funding transaction
--channel-fee-max-base-msat <arg> Channel lease rates, maximum channel fee base we'll
charge for funds routed through a leased channel.
--channel-fee-max-proportional-thousandths <arg> Channel lease rates, maximum proportional fee (in
thousandths, or ppt) we'll charge for funds routed
through a leased channel. Note: 1ppt = 1,000ppm
--disable-mpp Disable multi-part payments.
```
## Plug-ins
### General info
* https://lightning.readthedocs.io/PLUGINS.html#a-day-in-the-life-of-a-plugin
* https://github.com/lightningd/plugins/
### Directories
* The plugins are installed to:
`/home/bitcoin/cl-plugins-available`
* and symlinked to:
`/home/bitcoin/cl-plugins-enabled`
* All plugins in the `/home/bitcoin/cl-plugins-enabled` directory are loaded automatically as set in the config file: `/home/bitcoin/.lightningd/config`
### Implemented plugins
* summary
* sparko
* clboss
### Add a custom plugin
* The easiest way is to place the plugin in the
`/home/bitcoin/cl-plugins-enabled`
directory and start with
```
lightnign-cli plugin start /home/bitcoin/cl-plugins-enabled/PLUGIN_NAME
```
or restart C-ligthning with:
```
sudo systemctl restart lightningd
```
to have it loaded automatically.
From that directory it will load auomatically after restarts.
To just load it run it once store in:
`/home/bitcoin/cl-plugins-available/`
### CLBOSS
A plugin for automatic LN node management.
CLBOSS only requires to have funds deposited to the onchain wallet of C-lightning.
The recommended amount to start is ~ 10 million satoshis (0.1 BTC).
It does automatically:
* generate outbound capacity - opens channels
* generate inbound capacity - submarine swaps through the boltz.exchange API
* aware of onchain fees and mempool through c-lightning and makes transactions when fees are low
* manages rebalancing - performs probing
* closes bad channels (inactive or low traffic) - this function needs to activated manually
Overall it is a tool which makes users able to send and receive lightning payments with minimal interaction, basically setting up a routing node by itself.
The transactions made by CLBOSS does cost money and running it requires a fair amount of trust in the (fully open-source - MIT) code.
Neither the CLBOSS nor the RaspiBlitz developers can take resposibility for lost sats, use at your own discretion!
* Activate it in the menu - `SETTINGS` - `-CL CLBOSS`
* Discussion: https://github.com/rootzoll/raspiblitz/issues/2490
* Advanced usage
https://github.com/ZmnSCPxj/clboss#clboss-status
* Stopping CLBOSS will leave the node in the last state. No channels will be closed or funds removed when CLBOSS is uninstalled.
### Feeadjuster
* Install:
* to set the default fees in the config add:
```
fee-base=BASEFEE_IN_MILLISATS
fee-per-satoshi=PPM_FEE_IN_SATS
```
* more options for the feeadjuster to be set in the c-lightning config can be seen in the [code](https://github.com/lightningd/plugins/blob/c16c564c2c5549b8f7236815490260c49e9e9bf4/feeadjuster/feeadjuster.py#L318):
```
plugin.add_option(
"feeadjuster-deactivate-fuzz",
False,
"Deactivate update threshold randomization and hysterisis.",
"flag"
)
plugin.add_option(
"feeadjuster-deactivate-fee-update",
False,
"Deactivate automatic fee updates for forward events.",
"flag"
)
plugin.add_option(
"feeadjuster-threshold",
"0.05",
"Relative channel balance delta at which to trigger an update. Default 0.05 means 5%. "
"Note: it's also fuzzed by 1.5%",
"string"
)
plugin.add_option(
"feeadjuster-threshold-abs",
"0.001btc",
"Absolute channel balance delta at which to always trigger an update. "
"Note: it's also fuzzed by 1.5%",
"string"
)
plugin.add_option(
"feeadjuster-enough-liquidity",
"0msat",
"Beyond this liquidity do not adjust fees. "
"This also modifies the fee curve to achieve having this amount of liquidity. "
"Default: '0msat' (turned off).",
"string"
)
plugin.add_option(
"feeadjuster-adjustment-method",
"default",
"Adjustment method to calculate channel fee"
"Can be 'default', 'soft' for less difference or 'hard' for higher difference"
"string"
)
plugin.add_option(
"feeadjuster-imbalance",
"0.5",
"Ratio at which channel imbalance the feeadjuster should start acting. "
"Default: 0.5 (always). Set higher or lower values to limit feeadjuster's "
"activity to more imbalanced channels. "
"E.g. 0.3 for '70/30'% or 0.6 for '40/60'%.",
"string"
)
plugin.add_option(
"feeadjuster-feestrategy",
"global",
"Sets the per channel fee selection strategy. "
"Can be 'global' to use global config or default values, "
"or 'median' to use the median fees from peers of peer "
"Default: 'global'.",
"string"
```
* start the feeadjuster
```
cl plugin start /home/bitcoin/cl-plugins-available/plugins/feeadjuster/feeadjuster.py
```
* stop (best to run only periodically)
```
cl plugin stop /home/bitcoin/cl-plugins-available/plugins/feeadjuster/feeadjuster.py
```
* Can use menu - `CL` - `SUEZ` to visualize the channel balances and fee settings
* check the list of base fees
```
cl listpeers | grep fee_base_msat
```
* check the list of proportional fees
```
cl listpeers | grep fee_proportional_millionths
```
* set the fees to the defaults
```
cl setchannelfee all
```
### Dual funded channels
#### Reading
* https://medium.com/blockstream/c-lightning-opens-first-dual-funded-mainnet-lightning-channel-ada6b32a527c
* https://medium.com/blockstream/setting-up-liquidity-ads-in-c-lightning-54e4c59c091d
* https://twitter.com/niftynei/status/1389328732377255938
* lightning-rfc PR: https://github.com/lightningnetwork/lightning-rfc/pull/851/files
* represented by the feature bits 28/29
#### Setting up
* activate the feature on your node:
Type: `clconf` or use the menu `SYSTEM` - `CLCONF`.
Add the line:
```
experimental-dual-fund
```
Save and restart C-lightning.
* set up a liquidity ad:
```
lightning-cli funderupdate -k policy=match policy_mod=100
```
or set in the config for example - see the meaning of each line in https://medium.com/blockstream/setting-up-liquidity-ads-in-c-lightning-54e4c59c091d :
```
experimental-dual-fund
funder-policy=match
funder-policy-mod=100
lease-fee-base-msat=500sat
lease-fee-basis=50
channel-fee-max-base-msat=100sat
channel-fee-max-proportional-thousandths=2
```
* check the settings used currently on your node:
```
lightning-cli funderupdate
```
* check your advertised settings (needs some minutes to appear):
```
lightning-cli listnodes $(lightning-cli getinfo | jq .id)
```
#### Open a dual funded channel
* check if a node has onchain liquidity on offer:
```
lightning-cli listnodes nodeid
```
Example:
```
lightning-cli listnodes 02cca6c5c966fcf61d121e3a70e03a1cd9eeeea024b26ea666ce974d43b242e636
```
* list all nodes known in the graph with active offers:
```
lightning-cli listnodes | grep option_will_fund -B20 -A7
```
* note the node `id` and `compact_lease`
* connect to the node
```
lightning-cli connect nodeID@IP_or.onion
```
#### Fundchannel syntax
* the amount is the own funds in the wallet contributed
use equal amounts to have a balanced channel from start
the amounts can be specified in `sat` or `btc`
```
lightning-cli fundchannel -k id=NODE_ID amount=OWN_AMOUNTsat request_amt=PEER_CONTRIBUTION_AMOUNTsat compact_lease=COMPACT_LEASE
```
It can fail if the offer changed or there are not enough funds available on either side.
* open a dual funded channel with a chosen utxo and miner feerate
list the utxo-s with `lightning-cli listfunds`, can list multiple
the feerate is in `perkb` by default, e.g. use 1000 for 1 sat/byte
```
lightning-cli fundchannel feerate=PERKB_FEERATE utxos='["TRANSACTION_ID:INDDEX_NUMBER"]' -kid=NODE_ID amount=OWN_AMOUNTsat request_amt=PEER_CONTRIBUTION_AMOUNTsat compact_lease=COMPACT_LEASE
```
### Offers
* Details at bolt12.org
* Create an offer to receive payments:
https://lightning.readthedocs.io/lightning-offer.7.html
```
lightning-cli offer amount description [vendor] [label] [quantity_min] [quantity_max] [absolute_expiry] [recurrence] [recurrence_base] [recurrence_paywindow] [recurrence_limit] [single_use]
```
* Example:
Create a reusable offer which can be paid with any amount for LN tips using a fixed string.
```
lightning-cli offer any tip
```
* Create an offer to send payments:
https://lightning.readthedocs.io/lightning-offerout.7.html
```
lightning-cli offerout amount description [vendor] [label] [absolute_expiry] [refund_for]
```
* Fetch an invoice to pay an offer:
https://lightning.readthedocs.io/lightning-fetchinvoice.7.html
Will need at least one peer which supports onion the messages. For example:
```
lightning-cli connect 024b9a1fa8e006f1e3937f65f66c408e6da8e1ca728ea43222a7381df1cc449605@128.199.202.168:9735
```
* Then use the command to fetch the BOLT12 invoice:
```
lightning-cli fetchinvoice offer [msatoshi] [quantity] [recurrence_counter] [recurrence_start] [recurrence_label] [timeout] [payer_note]
```
* decode a BOLT12 invoice:
```
lightning-cli decode bolt12_invoice
```
* pay a a BOLT12 invoice:
Will need to pay through a peer which supports the onion messages which means you need at least one channel with such a node.
```
lightning-cli pay bolt12_invoice
```
* see if there is a new invoice is paid with:
```
lightning-cli listinvoices
```
The `pay_index` will increase as the offer gets reused.
### About the feature bits
* https://bitcoin.stackexchange.com/questions/107484/how-can-i-decode-the-feature-string-of-a-lightning-node-with-bolt-9
* Convert the hex number from `lightning-cli listpeers` to binary: https://www.binaryhexconverter.com/hex-to-binary-converter and count the position of the bits from the right.
## Testnets
* for testnet and signet there are prefixes `t` and `s` used for the aliases, daemons and their own plugin directory names.
* Testnet
```
# alias:
tcl | tclconf | tcllog
# daemon service name:
tlightningd
# config file:
/home/bitcoin/.lightningd/testnet/config
# plugin directory:
/home/bitcoin/tcl-plugins-enabled
```
* Signet
```
# aliases:
scl | sclconf | scllog
# daemon service name:
slightningd
# config file:
/home/bitcoin/.lightningd/signet/config
# plugin directory:
/home/bitcoin/scl-plugins-enabled
```
## Backups
* https://lightning.readthedocs.io/FAQ.html#how-to-backup-my-wallet
* General details: https://lightning.readthedocs.io/BACKUP.html
### Seed
-
### Channel database
*
### Recovery
* https://lightning.readthedocs.io/FAQ.html#database-corruption-channel-state-lost
* https://lightning.readthedocs.io/FAQ.html#loss
## Script file help list
```
# generate a list of help texts on a RaspiBlitz:
cd /home/admin/config.scripts/
ls cl*.sh > clScriptList.txt
sed -i "s#cl#./cl#g" clScriptList.txt
sed -i "s#.sh#.sh -h#g" clScriptList.txt
bash -x clScriptList.txt
rm clScriptList.txt
```
```
+ ./cl.backup.sh -h
---------------------------------------------------
CL RESCUE FILE (tar.gz of complete cl directory)
---------------------------------------------------
cl.backup.sh cl-export
cl.backup.sh cl-export-gui
cl.backup.sh cl-import [file]
cl.backup.sh cl-import-gui [setup|production] [?resultfile]
---------------------------------------------------
SEED WORDS
---------------------------------------------------
cl.backup.sh seed-export-gui [lndseeddata]
cl.backup.sh seed-import-gui [resultfile]
+ ./cl.hsmtool.sh -h
Create new wallet or import seed
Unlock/lock, encrypt, decrypt, set autounlock or change password for the hsm_secret
Usage:
Create new wallet:
cl.hsmtool.sh [new] [mainnet|testnet|signet] [?seedPassword]
cl.hsmtool.sh [new-force] [mainnet|testnet|signet] [?seedPassword]
There will be no seedPassword(passphrase) used by default
new-force will delete any old wallet and will work without dialog
cl.hsmtool.sh [seed] [mainnet|testnet|signet] ["space-separated-seed-words"] [?seedPassword]
cl.hsmtool.sh [seed-force] [mainnet|testnet|signet] ["space-separated-seed-words"] [?seedPassword]
The new hsm_secret will be not encrypted if no NewPassword is given
seed-force will delete any old wallet and will work without dialog
cl.hsmtool.sh [unlock|lock] <mainnet|testnet|signet>
cl.hsmtool.sh [encrypt|decrypt] <mainnet|testnet|signet>
cl.hsmtool.sh [autounlock-on|autounlock-off] <mainnet|testnet|signet>
cl.hsmtool.sh [change-password] <mainnet|testnet|signet> <NewPassword>
+ ./cl.install-service.sh -h
Script to set up or update the C-lightning systemd service
Usage:
/home/admin/config.scripts/cl.install-service.sh <mainnet|testnet|signet>
+ ./cl.install.sh -h
C-lightning install script
The default version is: v0.10.1
Setting up on mainnet unless otherwise specified
mainnet / testnet / signet instances can run parallel
Usage:
cl.install.sh on <mainnet|testnet|signet>
cl.install.sh off <mainnet|testnet|signet> <purge>
cl.install.sh [update <version>|testPR <PRnumber>]
cl.install.sh display-seed <mainnet|testnet|signet>
+ ./cl-plugin.backup.sh -h
Install the backup plugin for C-lightning
Replicates the lightningd.sqlite3 database on the SDcard
Usage:
cl-plugin.backup.sh [on|off] [testnet|mainnet|signet]
cl-plugin.backup.sh [restore] [testnet|mainnet|signet] [force]
cl-plugin.backup.sh [backup-compact] [testnet|mainnet|signet]
https://github.com/lightningd/plugins/tree/master/backup
+ ./cl-plugin.clboss.sh -h
Install or remove the CLBOSS C-lightning plugin
version: v0.10
Usage:
cl-plugin.clboss.sh [on|off] [testnet|mainnet|signet]
+ ./cl-plugin.sparko.sh -h
Install, remove, connect or get info about the Sparko plugin for C-lightning
version: v2.7
Usage:
cl-plugin.sparko.sh [on|off|menu|connect] [testnet|mainnet|signet]
+ ./cl-plugin.standard-python.sh -h
Install and show the output of the chosen plugin for C-lightning
Usage:
cl-plugin.standard-python.sh on [plugin-name] [testnet|mainnet|signet] [runonce]
tested plugins:
summary | helpme | feeadjuster
find more at:
https://github.com/lightningd/plugins
+ ./cl-plugin.summary.sh -h
Install and show the output if the summary plugin for C-lightning
Usage:
cl-plugin.summary.sh [testnet|mainnet|signet] [runonce]
+ ./cl.rest.sh -h
C-lightning-REST install script
The default version is: v0.5.1
mainnet | testnet | signet instances can run parallel
The same macaroon and certs will be used for the parallel networks
Usage:
cl.rest.sh [on|off|connect] <mainnet|testnet|signet>
+ ./cl.setname.sh -h
Config script to set the alias of the C-lightning node
cl.setname.sh [mainnet|testnet|signet] [?newName]
```