Table of Contents

Irssi Setup Guide (OFTC, Auto-Login, Auto-Join, Clean Output)

1. Installation

sudo pacman -S irssi # Arch/Artix
sudo apt install irssi # Debian/Ubuntu 
irssi

2. Configure Network & Server

OFTC with SSL (Port 6697): 

/NETWORK ADD -auto -nick user123 OFTC
/SERVER ADD -auto -ssl -network OFTC irc.oftc.net 6697

3. Automatic NickServ Login

With certificate (CertFP): 

mkdir -p ~/.config/irssi/certs
openssl req -nodes -newkey rsa:2048 -keyout
~/.config/irssi/certs/nick.key -x509 -days 3650 -out ~/.config/irssi/certs/nick.cer
cat ~/.config/irssi/certs/nick.cer ~/.config/irssi/certs/nick.key > ~/.config/irssi/certs/nick.pem
chmod 400 ~/.config/irssi/certs/*

Then inside Irssi: 

/SERVER MODIFY -ssl\_cert \~/.config/irssi/certs/nick.pem OFTC

Add fingerprint to NickServ: 

/msg NickServ CERT ADD