Quote from: n0nce on June 08, 2022, 01:56:01 AM

Core Lightning
[1] Install dependencies

Code:

sudo apt install autoconf automake build-essential git libtool libgmp-dev libsqlite3-dev python3 python3-pip python3-mako net-tools zlib1g-dev libsodium-dev gettext
pip3 install --upgrade pip
pip3 install --user poetry

echo -e '#!/bin/sh\ntouch $2\nexit 0' | sudo tee /usr/local/bin/mrkd
sudo chmod 755 /usr/local/bin/mrkd

[2] Create another Tor hidden service for C-Lightning. Similar procedure as before.

Code:

sudo nano /etc/tor/torrc

[3] Below the other hidden service, add this info for Lightning.

Code:

HiddenServiceDir /var/lib/tor/lightningd_hidden_service/
HiddenServiceVersion 3
HiddenServicePort 9735 127.0.0.1:9735

[4] Then restart Tor and retrieve the new v3 Tor hostname for your Lightning installation. Copy it somewhere so you have it handy in step 7.

Code:

sudo service tor restart
sudo cat /var/lib/tor/lightningd_hidden_service/hostname

[5] Log into bitcoin user and download + build Lightning. v0.11.1 is the currently latest version.

Code:

su - bitcoin
git clone https://github.com/ElementsProject/lightning.git
cd lightning
git checkout v0.11.1
./configure
make -j $(nproc)

[6] Create Lightning config.

Code:

mkdir -p /home/bitcoin/.lightning/bitcoin
nano /home/bitcoin/.lightning/bitcoin/lightningd.conf

[7] Enter the following. Alias can be chosen at will!

Replace onion_address_you_got with the hidden service hostname you got in step 4!

Code:

daemon
alias=alias_for_your_node
network=bitcoin
log-level=debug
log-file=/home/bitcoin/.lightning/debug.log

# incoming via tor
bind-addr=127.0.0.1:9735
announce-addr=onion_address_you_got.onion

# outgoing via tor
proxy=127.0.0.1:9050
always-use-proxy=true

[8] Log back out of the unprivileged bitcoin account to install Lightning and create the service.

Code:

exit
cd /home/bitcoin/lightning
sudo make install

sudo nano /usr/lib/systemd/system/lightningd.service

[9] In the service file, we need the following contents.

Code:

[Unit]
Description=C-Lightning daemon
Requires=bitcoind.service
After=bitcoind.service
Wants=network-online.target
After=network-online.target

[Service]
ExecStart=/usr/local/bin/lightningd --daemon --conf /home/bitcoin/.lightning/bitcoin/lightningd.conf

User=bitcoin
Group=bitcoin
Type=forking
Restart=on-failure

# Hardening measures
####################

# Provide a private /tmp and /var/tmp.
PrivateTmp=true

# Mount /usr, /boot/ and /etc read-only for the process.
ProtectSystem=full

# Disallow the process and all of its children to gain
# new privileges through execve().
NoNewPrivileges=true

# Use a new /dev namespace only populated with API pseudo devices
# such as /dev/null, /dev/zero and /dev/random.
PrivateDevices=true

# Deny the creation of writable and executable memory mappings.
MemoryDenyWriteExecute=true

[Install]
WantedBy=multi-user.target

[10] Start the Lightning service

Code:

sudo systemctl enable lightningd.service
sudo service lightningd start

[11] To check if it's running, we can use the lightning-cli command as bitcoin user with any of its parameters.

Code:

su - bitcoin
lightning-cli getinfo

Hi N0nce,
Thanks so much for this guide. I thought I'd give it a go on my futurebit apollo ( I did not flash a custom install of linux ; I am using futurebit's latest OS). I am pretty new to linux and working with it, but I thought I did a decent job getting through the steps you outlined. However, I got to the point where I did: sudo service lightningd start, and I got the following message: Failed to start lightningd.service: Unit bitcoind.service not found

Any ideas or help you can provide would be greatly appreciated, would love to dive into lightning. Thanks again I see you posting all the time and find you to be very helpful to the community.