12-11-2014 06:19 AM - edited 12-11-2014 06:23 AM
I've having trouble with ssh (putty). If I try and open a session it acts weird. As expected it prompts for username. Next it displays the banner, then it prompts for password. This is where us behaves oddly. It will not display any characters and the session drops. "Server unexpectedly dropped connection" is the error I receive.
I've checked all I knew to look at but past the ssh auth method I don't know what else to check out.
Any help will be greatly appreciated.
12-11-2014 06:39 AM
Does this happen via the console, or no?
Are you authenticating the username and password locally or to an external radius or tacacs server?
Aruba Customer Engineering
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12-11-2014 07:03 AM
Sorry guys having trouble with email reply.
Cjoseph: A hard console is fine it behaves correctly. The auth is local at the moment.
dhanraj: the client os is win7, putty ver .63, and AOS is 22.214.171.124
12-15-2014 08:20 PM
might be stuck ssh sessions - especially if you have any scripts around that log into the controller which may not be exiting gracefully. Please run
if you see a whole list of sessions, you can try the following from the console
process restart sshd
which will restart sshd and clear things up. Restarting sshd will cause the controller to be unreachable for about 30-60 seconds.
if you see that there are just 1 or 2 sessions in the list and you are getting the error you mentioned, then append the word "core" to the process restart above, restart it - see if it recovers, then raise a case with the corefile as to why you got locked out before you hit full sessions