Hi Clint, I think I figures something out:
If I do a "ssh -vv jnet...@fcdflnx3.fnal.gov" (the computer I'm trying to log into), towards the end of the output I get: Jason Nett11:06:38 PM debug1: Authentications that can continue: gssapi-keyex,gssapi-with-mic,keyboard-interactive debug1: Next authentication method: gssapi-keyex debug1: No valid Key exchange context debug2: we did not send a packet, disable method debug1: Next authentication method: gssapi-with-mic debug2: we sent a gssapi-with-mic packet, wait for reply debug1: Authentication succeeded (gssapi-with-mic). Authenticated to fcdflnx3.fnal.gov ([131.225.240.129]:22). Notice that "gssapi-with-mic" is in the list of "Authentications that can continue" and is the one that succeeded. When I try on the machine that lost it's ability to ssh, this output is: ------------------------------------ debug1: Authentications that can continue: gssapi-keyex,gssapi-with-mic,keyboard-interactive debug1: Next authentication method: keyboard-interactive debug2: userauth_kbdint debug2: we sent a keyboard-interactive packet, wait for reply debug1: Authentications that can continue: gssapi-keyex,gssapi-with-mic,keyboard-interactive debug2: we did not send a packet, disable method debug1: No more authentication methods to try. Permission denied (gssapi-keyex,gssapi-with-mic,keyboard-interactive). ----------------------------------- So on this machine, "gssapi-keyex" and "gssapi-with-mic" are never attempted--according to the verbose output--and only "keyboard-interactive" is attempted. From my online searches, I gather that gssapi-with-mic has something to do with communicating my kerberos authentication, but I'm not quite sure where to go from here, at the moment. Hopefully this extra info can help us rectify the issue quickly. Jason On 10/14/2011 04:42 PM, Clint Byrum wrote: > Hi Jason, thanks for taking the time to file a bug report, and I'm sorry > you're having trouble. > > The sshd -ddd needs to be run as root to be able to listen on port 22. > > Also, an output from your laptop of > > ssh -vv your.desktop.address > > Will help to debug this issue. > > ** Changed in: openssh (Ubuntu) > Status: New => Incomplete > > ** Changed in: openssh (Ubuntu) > Importance: Undecided => High > -- 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/874518 Title: ssh fails after upgrade to 11.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/874518/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs