[CentOS] SSH suddenly started failing :(

Paul Heinlein heinlein at madboa.com
Thu Jun 7 18:35:48 UTC 2007


On Thu, 7 Jun 2007, John Lagrue wrote:

> Cameron Showalter wrote:
>>  John Lagrue wrote:
>> 
>> >  All of a sudden I can no longer ssh into my server running CentOS 4.5
>> > 
>> >  This is what happens:
>> > 
>> >  [john at lt-131-jdl-f7 ~]$ ssh -Y -p 2222 192.168.0.1
>> >  john at 192.168.0.1's password:
>> >  Connection to 192.168.0.1 closed by remote host.
>> >  Connection to 192.168.0.1 closed.
>> > 
>> >  And yes, the account does exist and the password is correct!
>> > 
>> >  Looking at the logs, I see this:
>> > 
>> >  Jun  7 18:51:37 moray1 sshd(pam_unix)[11348]: authentication failure;
>> >  logname= uid=0 euid=0 tty=NODEVssh ruser= rhost=192.168.0.209  user=john
>> >  Jun  7 18:51:46 moray1 sshd[11348]: Accepted password for john from
>> > : : ffff:192.168.0.209 port 57755 ssh2
>> >  Jun  7 18:51:46 moray1 sshd(pam_unix)[11352]: session opened for user
>> >  john by (uid=500)
>> >  Jun  7 18:51:46 moray1 pam_loginuid[11352]: set_loginuid failed
>> >  opening loginuid Jun  7 18:51:46 moray1 pam_loginuid[11352]:
>> >  set_loginuid failed
>> >  Does any of this make sense?
>> > 
>> >  I've tried it on three different clients and get the same thing every
>> >  time.
>> > 
>> >  JDL
>> > 
>> >  Jun  7 18:51:46 moray1 sshd[11352]: fatal: PAM session setup
>> >  failed[14]: Cannot make/remove an entry for the specified session

This last entry smells to me like it might be a disk-full error. Even 
if df reports lots of space free, it might be worth using lsof to see 
whether there are file descriptors open to large (but seemingly 
deleted) files.

-- 
Paul Heinlein <> heinlein at madboa.com <> http://www.madboa.com/



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