Hey Timothy, By reading some old mails in the mailing list, I stumbled over a topic similar to your case from 2011-12-09 (SELinux and RHEL6.2 preventing disk checks via NRPE). I know you said you didn't use SELinux, but I think it doesn't hurt if you read it in the archive: <a href="http://sourceforge.net/mailarchive/forum.php?thread_name=15tzkf1x503.fsf%40tux.uio.no&forum_name=nagios-users">http://sourceforge.net/mailarchive/forum.php?thread_name=15tzkf1x503.fsf%40tux.uio.no&forum_name=nagios-users</a> <div class="gmail_quote">On Tue, Mar 13, 2012 at 9:03 AM, Wenig, Michael (IT/I4Z) <<a href="mailto:michael.wenig@ww-informatik.de">michael.wenig@ww-informatik.de</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> We had some similar issues which were originated in missing policies for SELinux. -----Ursprüngliche Nachricht----- Von: Boyer, Timothy A. [mailto:<a href="mailto:Timothy.Boyer@opm.gov">Timothy.Boyer@opm.gov</a>] Gesendet: Montag, 12. März 2012 20:57 An: Nagios Users List Betreff: Re: [Nagios-users] check_disk '/sys not accessable' <div><div></div><div class="h5"> Works fine on all of the other RHEL6 systems. # su - nagios -bash-4.1$ /usr/lib64/nagios/plugins/check_nrpe -H system3 -c check_all_disk 20 10 DISK OK - free space: / 24673 MB (98% inode=99%); /dev/shm 12007 MB (100% inode=99%); /boot 154 MB (65% inode=99%); ... with nothing at all in sudoers. -----Original Message----- From: davor grgicevic [mailto:<a href="mailto:dgrgicevic@gmail.com">dgrgicevic@gmail.com</a>] Sent: Monday, March 12, 2012 1:32 PM To: Nagios Users List Subject: Re: [Nagios-users] check_disk '/sys not accessable' Hi Timothy localy u r workiong as root.. if you try as user Nagios, it wont work .. u have to run sudo for this "DISK CRITICAL - /dev/pts is not accessible: Permission denied" davor On Mon, Mar 12, 2012 at 6:17 PM, Boyer, Timothy A. <<a href="mailto:Timothy.Boyer@opm.gov">Timothy.Boyer@opm.gov</a>> wrote: > $ ./check_disk -w 10% -c 5% -p /sys > > DISK UNKNOWN - free space:| > > > > is the result on both servers. > > > > But that’s running locally, which works. The problem is when running > via nrpe. > > > > Running check_nrpe with –x /sys in the command line returns: > > > > DISK CRITICAL - /dev/pts is not accessible: Permission denied > > > > Doing the next obvious thing and including /dev in the excludes works, > and is a workaround. > > > > Thanks much… > > > > > > From: Claudio Kuenzler [mailto:<a href="mailto:ck@claudiokuenzler.com">ck@claudiokuenzler.com</a>] > Sent: Friday, March 09, 2012 7:46 AM > To: Nagios Users List > > > Subject: Re: [Nagios-users] check_disk '/sys not accessable' > > > > Nagios 3.3.1. Two identical RHEL6.1 systems, and all I’m trying to do > is get a total disk space reading. > > > Well the systems are not identical as the manually launched plugin > output of yours shows: > > [nagios@server1 ~)$ /usr/lib/nagios/plugins/check_disk -w20% -c10% > > DISK OK - free space: / 24673 MB (98% inode=99%); /dev/shm 12007 MB > (100% inode=99%); /boot 154 MB (65% inode=99%); /home 7507 MB (98% > inode=99%); > > > > [nagios@server2 /]$ /usr/lib/nagios/plugins/check_disk -w20% -c10% > DISK OK - free space: / 22004 MB (77% inode=96%); /dev/shm 498 MB > (100% inode=99%); /boot 387 MB (84% inode=99%); > > > Note the /home mount point. > > Have you checked the servers for the different mount points? It looks > like on server2 /sys is seen as a partition or mount point while on > server1 the check seems to "ignore" it successfully? Any idea why > server2 thinks /sys is a partition or mount point? > > Can you try to launch it specifically on /sys and output the results > (on both servers)? > > ./check_disk -w 10% -c 5% -p /sys > > Then try to exclude /sys from the check: > > ./check_disk -w 10% -c 5% -x /sys > > By the way the error you're seeing seems to be triggered from this > code (at the bottom of the source file): > > void > stat_path (struct parameter_list *p) > { > /* Stat entry to check that dir exists and is accessible */ > if (verbose >= 3) > printf("calling stat on %s\n", p->name); > if (stat (p->name, &stat_buf[0])) { > if (verbose >= 3) > printf("stat failed on %s\n", p->name); > printf("DISK %s - ", _("CRITICAL")); > die (STATE_CRITICAL, _("%s %s: %s\n"), p->name, _("is not > accessible"), strerror(errno)); > } > } > > > > On Fri, Mar 9, 2012 at 1:16 PM, Boyer, Timothy A. > <<a href="mailto:Timothy.Boyer@opm.gov">Timothy.Boyer@opm.gov</a>> > wrote: > > It's Permissive, so that can't be it. Thanks... > > > -----Original Message----- > From: Sigmund Brandstaetter [mailto:<a href="mailto:sb@maniladev.com">sb@maniladev.com</a>] > Sent: Thursday, March 08, 2012 4:12 PM > To: <a href="mailto:nagios-users@lists.sourceforge.net">nagios-users@lists.sourceforge.net</a> > Subject: Re: [Nagios-users] check_disk '/sys not accessable' > > Tim, > > How about SELinux, is it maybe on only on the one that is making the > problem? > > Cheers > Sigmund > > > > On 3/9/2012 00:49, Boyer, Timothy A. wrote: >> Nagios 3.3.1. Two identical RHEL6.1 systems, and all I'm trying to do >> is get a total disk space reading. So nrpe is running on both, with >> the identical command in nrpe.cfg: >> command[check_all_disk]=/usr/lib/nagios/plugins/check_disk -w $ARG1$ >> -c $ARG2$ command[check_all_disk]=/usr/lib/nagios/plugins/check_disk >> -w $ARG1$ -c $ARG2$ Running as user nagios from the central server. >> One works fine: >> -sh-4.1$ /usr/lib/nagios/plugins/check_nrpe -H server1 -c >> check_all_disk -a 20% 10% DISK OK - free space: / 24673 MB (98% >> inode=99%); /dev/shm 12007 MB (100% inode=99%); /boot 154 MB (65% >> inode=99%); /home 7507 MB (98% inode=99%); the other gives me this: >> -sh-4.1$ /usr/lib/nagios/plugins/check_nrpe -H server2 -c >> check_all_disk -a 20% 10% DISK CRITICAL - /sys is not accessible: >> Permission denied Identical versions of nrpe (2.12); a diff on >> check_disk shows they're both identical; both commands work correctly >> locally run as user Nagios: >> [nagios@server1 ~)$ /usr/lib/nagios/plugins/check_disk -w20% -c10% >> DISK OK - free space: / 24673 MB (98% inode=99%); /dev/shm 12007 MB >> (100% inode=99%); /boot 154 MB (65% inode=99%); /home 7507 MB (98% >> inode=99%); >> [nagios@server2 /]$ /usr/lib/nagios/plugins/check_disk -w20% -c10% >> DISK OK - free space: / 22004 MB (77% inode=96%); /dev/shm 498 MB >> (100% inode=99%); /boot 387 MB (84% inode=99%); Multiple other nrpe >> commands running on both; this is the only thing they're having >> problems with. >> /sys is user-readable in both. Logs show nothing. > >> I've run out of ideas. Pointers in the right direction appreciated... > >> Tim >> >> >> </div></div>>> --------------------------------------------------------------------- >> --------- Virtualization& Cloud Management Using Capacity Planning <div class="im">>> Cloud computing makes use of virtualization - but cloud computing >> also focuses on allowing computing to be delivered as a service. >> <a href="http://www.accelacomm.com/jaw/sfnl/114/51521223/" target="_blank">http://www.accelacomm.com/jaw/sfnl/114/51521223/</a> >> >> >> _______________________________________________ >> Nagios-users mailing list >> <a href="mailto:Nagios-users@lists.sourceforge.net">Nagios-users@lists.sourceforge.net</a> >> <a href="https://lists.sourceforge.net/lists/listinfo/nagios-users" target="_blank">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> >> ::: Please include Nagios version, plugin version (-v) and OS when >> reporting any issue. >> ::: Messages without supporting info will risk being sent to >> /dev/null > > > -- > --------------------- > Sigmund Brandstaetter > Check my Blog > Live from Manila > <a href="http://maniladev.com" target="_blank">http://maniladev.com</a> > --------------------- > > > ---------------------------------------------------------------------- </div>> -------- Virtualization & Cloud Management Using Capacity Planning <div class="im">> Cloud computing makes use of virtualization - but cloud computing also > focuses on allowing computing to be delivered as a service. > <a href="http://www.accelacomm.com/jaw/sfnl/114/51521223/" target="_blank">http://www.accelacomm.com/jaw/sfnl/114/51521223/</a> > _______________________________________________ > Nagios-users mailing list > <a href="mailto:Nagios-users@lists.sourceforge.net">Nagios-users@lists.sourceforge.net</a> > <a href="https://lists.sourceforge.net/lists/listinfo/nagios-users" target="_blank">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> > ::: Please include Nagios version, plugin version (-v) and OS when > reporting any issue. > ::: Messages without supporting info will risk being sent to /dev/null > > ---------------------------------------------------------------------- </div>> -------- Virtualization & Cloud Management Using Capacity Planning <div class="im">> Cloud computing makes use of virtualization - but cloud computing also > focuses on allowing computing to be delivered as a service. > <a href="http://www.accelacomm.com/jaw/sfnl/114/51521223/" target="_blank">http://www.accelacomm.com/jaw/sfnl/114/51521223/</a> > _______________________________________________ > Nagios-users mailing list > <a href="mailto:Nagios-users@lists.sourceforge.net">Nagios-users@lists.sourceforge.net</a> > <a href="https://lists.sourceforge.net/lists/listinfo/nagios-users" target="_blank">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> > ::: Please include Nagios version, plugin version (-v) and OS when > reporting any issue. > ::: Messages without supporting info will risk being sent to /dev/null > > > > > ---------------------------------------------------------------------- </div>> -------- Try before you buy = See our experts in action! <div><div></div><div class="h5">> The most comprehensive online learning library for Microsoft > developers is just $99.99! 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