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SLES 11.2 slow SSH password prompt

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Operating Systems Linux SuSE SLES 11.2 slow SSH password prompt
# 8  
Old 03-02-2013
A shot in the dark:
does
Code:
nslookup host

take a long time?
Perhaps it helps to trace your sshd:
Code:
strace `pgrep -P 1 -u 0 -x sshd`

Note down the function where it pauses.
If you have a quiet system, use strace -f to follow the child processes.
# 9  
Old 03-04-2013
Thanks everyone for your suggestions, we finally discovered the issue.

We took a login trace using tcpdump, which revealed RPC sessions between Samba/winbind and the DC, well along in a conversation, were being terminated overnight. The login delay was being caused with Samba/winbind trying to reestablish the connection, which eventually times out.

I presented this to our network team who then placed an override on the firewall, the issue was resolved for us the next day.
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