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Old 07-18-2008
mcraul mcraul is offline
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check pass; user unknown
Hi all,

While watching the log at /var/log/messages on a Centos 4.x box I keep seeing this come up

Jul 18 09:38:40 ws096 PAM_pwdb[708]: check pass; user unknown


From what I understand this might be a ssh attack or am I wrong here?
The bad thing is that it does not show an IP address its coming so I could block it. Anybody run into this before and found a solution?

Thanks!
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Old 07-21-2008
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zaxxon zaxxon is offline Forum Staff  
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I think it was just a mistake - maybe someone tried to log on using a wrong name or thinking he/she was going connect to another box. A login attack would look like login spam in your logs, I think.
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