(In reply to Archie Cobbs from comment #4) > > The warning only happens occasionally. I haven't been able to get it to > happen by trying manually on the command line yet. So what did you try to show in comment #2 ? > > Note each time 'pexpnagios' logs in it may be doing a different Nagios > check. The Nagios check that generates the errors seems to always be one Can you tell us more about how 'pexpnagios' was created ? Can you share the relevant entry in /etc/passwd for this user for example ? > particular JVM check. > > This JVM Nagios check script runs "sudo /usr/bin/jstat" twice in rapid > succession: Can you tell us more about the Nagios plugin you're using and also share (by attaching) the check script ? BTW did you make any modification in the pam stuff ? Thanks.