I also just found some clues that it might be caused by reverse DNS: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=409360
Disabling mdns4 hosts lookup in /etc/nsswitch.conf indeed seems to fix the problem, so I will probably settle with that workaround, keeping GSSAPIAuthentication turned on. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in Ubuntu. https://bugs.launchpad.net/bugs/84899 Title: SSH with GSSAPIAuthentication option on SSH servers are very slow To manage notifications about this bug go to: https://bugs.launchpad.net/openssh/+bug/84899/+subscriptions -- Ubuntu-server-bugs mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
