Re: OpenSSH_4.1p1 hangs on exit using PAM/ChallengeResponse
From: Darren Tucker (dtucker_at_zip.com.au)
Date: Wed, 03 Aug 2005 01:16:59 +1000 To: Dustin Hoff <email@example.com>
Dustin Hoff wrote:
> I am having some problems with 4.1p1 on Solaris 2.6-8 using the RSA
> PAM module (v5.3.2) for SecurID authentication. The initial login
> works fine, but the session hangs when I exit and it doesn't close
> until I kill the sshd on the server or close it with ~.. And no,
> I'm not running anything in the background.
> Is this one of the "known" problems that the FAQ alludes to? Or
> am I missing something trivial?
It's not a known problem as far as I know.
I would guess that the pam_securid module is leaking a file descriptor
which remains open during the session, and when you log out sshd is
waiting for the descriptor to close.
This is easy to check: log in find out the pids of your shell and its
parent sshd, then use "lsof -p [pid]" to see what descriptors they have
open. Then log out and repeat the process and see if any descriptors
-- Darren Tucker (dtucker at zip.com.au) GPG key 8FF4FA69 / D9A3 86E9 7EEE AF4B B2D4 37C9 C982 80C7 8FF4 FA69 Good judgement comes with experience. Unfortunately, the experience usually comes from bad judgement.