https://libera.chat/news/retiring-certfp-expiries
Retiring CertFP Expiration Verification | Libera Chat
Jul 9, 2024 - Your expired TLS client certificates will no longer be rejected.
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https://www.oftc.net/NickServ/CertFP/
OFTC - NickServ/CertFP
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https://libera.chat/guides/certfp
Login With a Certificate (CertFP) | Libera Chat
Apr 7, 2026 - As an alternative to password-based authentication, you can connect to Libera.Chat with a TLS certificate and have services recognise it automatically. This is...
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