On Tue, Jul 02, 2024 at 02:21:40PM GMT, Chris Adams wrote: > Once upon a time, Kevin Fenzi <kevin@xxxxxxxxx> said: > > Please see https://fedoraproject.org/wiki/Infrastructure/fedorapeople.org > > For more information, including information on adding our SSH CA or > > using dnssec / sshfp to verify the ssh host key of the new host. > > AFAIK the default Fedora setup with systemd-resolved does not support > DNSSEC for ssh using SSHFP records, and also the default SSH config > doesn't have VerifyHostKeyDNS enabled (so even if ssh could get the > record, with DNSSEC, it wouldn't use it). Yep, you need to enable dnssec in systemd-resolved (and have a nameserver that supports it) and set VerifyHostKeyDNS=yes in ssh_config. For that reason, I would say just adding the fedoraproject CA to known_hosts is much easier. (And also works for other fedoraproject.org hosts). kevin
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