Our anoncvs mirror has changed its ssh host keys due to a Debian-specific problem (it's hosted on a machine running Debian GNU/Linux courtesy of gecko2@). The new keys are: [Update: [old broken link removed] moved]
Please copy these into /etc/ssh/ssh_known_hosts or ~/.etc/ssh/known_hosts, overriding the existing keys for the same IPs or host names.
The current version of the /etc/ssh/ssh_known_hosts file can be retrieved via anonymous CVS (from the server affected), anonymous rsync (also from rsync.allbsd.org), CVSweb (from both servers) or by an eMail request.
Yesterday's snapshot does not yet include the new public host keys, as they were generated only today.