This is purely an FYI. A non-fatal bug exists with regards to authentication in the following operating systems: FreeBSD 4.4 (at least) Allegedly in OpenBSD 3.0, 3.1 and 3.2 (untested) And in the following packages when kerberos authentication is compiled into them on the above operating systems: OpenSSH 2.3.0 (at least. not sure about newer versions) UW imapd, Pine, and other packages which are linked against the kerberos libraries I'm not blaming any of these packages, so please let no-one get up in arms about that :-) The bug revolves around the libraries trying to lookup TXT records in DNS for krb5-realm.'your_tld'. I control the name servers for krb5-realm.com/net/org It has been reported that when this nameserver goes down, authentication can take a very-long-time. I believe what happens is that authentication *failures* take a very-long-time. This is just a notification that the name servers for these domains will be changing in the next 48 hours. It shouldn't be a problem, but incase people see odd issues as described above, which I usually get mails and such about later, this may be the reason.