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Old 11-06-2006, 09:05 PM   #1
sardaukar_siet
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Registered: Feb 2003
Location: Warsaw
Distribution: Fedora 8
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SSH weirdness


Hello!

Since an upgrade (that didn't upgrade the SSH server, but I recall it started happening since then) my FC6 SSH server is acting weird.

A login takes FIFTY (50) seconds on a 4Mb/256Kb ADSL line. This never happened before. I check the logs with a tail -f /var/log/* and all I get is the AUTH success message after 20 seconds and the user prompt at 50 seconds.

How can I tell what's happening? Is is the system or the modem? I'm running FC6 with the 2.6.18-1.2798.fc6 i686 kernel, openssh-server-4.3p2-10 and the modem is a Draytek Vigor V2700G, with the QoS options off.

After login, it is fast - it's just the login wait is, well, odd. No CPU consuming jobs running.

Please help!

Thanks!
 
Old 11-07-2006, 11:18 AM   #2
adam525
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Registered: Nov 2006
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It sounds like it might be looking for another authentication mechanism and timing out before falling back to (I'm assuming) files.

Are you using LDAP? Is LDAP installed?

Have a look in /etc/pam.d/sshd (also look at it's includes) and see if it's looking to another auth mechanism before it looks at your password file.
 
Old 11-07-2006, 04:31 PM   #3
sardaukar_siet
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Registered: Feb 2003
Location: Warsaw
Distribution: Fedora 8
Posts: 58

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Fixed! Got a new modem and apparently DNS is somewhat broken on it. I added "UseDNS no" to the config file and logins are instantaneous now.
 
  


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