Configuring SASL for Irssi

Old versions of Irssi have a bug that can cause SASL to fail. Ensure that you are using Irssi version 1.0.8, or 1.1.3, or 1.2.1, or later (you can find out by running irssi -v in your nearest shell).

Irssi

Recent Irssi versions include built-in SASL support via /network:

/network add -sasl_username <login> -sasl_password <password> -sasl_mechanism PLAIN LiberaChat
/server add -auto -net LiberaChat -tls -tls_verify irc.libera.chat 6697
/save

Troubleshooting

To check that the setting was correct, run /network and confirm that the Libera.Chat entry looks like this:

LiberaChat: sasl_mechanism: plain, sasl_username: TheCoolestNick, sasl_password: (pass)

All three items (mechanism, username, and password) must be set.