The following patch is in karmic. It will cause things to work if a
password server has both v4 and v6 addresses and you have v4
connectivity.
I think the 1.7 server has v6 support, but I don't think the 1.7
client even has v6 support.
However, backporting this patch might make the problem less
Public bug reported:
Binary package hint: libpam-krb5
passwd fails when trying to change the password against an kerberos
server with an IPv6 address. There's supposed to be a fix committed up
at MIT http://krbdev.mit.edu/rt/Ticket/Display.html?id=5595, but it
seems that it hasn't propagated dow
