'su -' makes the shell a login shell ... which requires a real shell, not /bin/false.
What if you do this? sudo su nagios more /proc/loadavg Skip the -, which should run more directly, which should work even with /bin/false listed as the shell. If that works, then you should be able to modify your nagios command definition the same way ... -----Original Message----- From: Peter N. Steinmetz [mailto:peternsteinm...@steinmetz.org] Sent: Wednesday, April 25, 2012 12:42 PM To: Nagios Users List Subject: Re: [Nagios-users] puzzling no output from nrpe run of check_load Yes, ls -l /proc/loadavg shows: -r--r--r-- 1 root root which I believe mean any user can read it. Yet, sudo su - nagios more /proc/loadavg returns nothing when the nagios user has /bin/false for a shell, and returns the expected output when the nagios user has /bin/bash for a shell. I added the following line to /etc/sudoers: nagios ALL=(ALL) NOPASSWD: /proc/loadavg but that doesn't fix the problem. thanks, Peter On Apr 25, 2012, at 9:09 AM, Alex Griffin wrote: > Does the nagios user have read access to /proc/loadavg? > > Alex Griffin > --- > Tech Team > agrif...@nagios.com > ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null