Tag Archives: fstab

Exclude fstab entries that use BIND from nagios nrpe check_disk / check_all_disks

Say you have an /etc/fstab file with an entry for bind: tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts gid=5,mode=620 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0 ** /root/special/folder /home/user1/folder none bind 0 0 If you run the nagios nrpe command (below) as root everything works fine: /usr/lib64/nagios/plugins/check_disk -w 8% -c 5% -A -x /dev/shm -X nfs -X bind -i /boot However, when you run this as the nagios user it fails (as is expected since the nagios does not have access to this folder): sudo -u nagios /usr/lib64/nagios/plugins/check_disk -w 8% -c 5% -A -x /dev/shm -X nfs -X bind -i /boot DISK CRITICAL – /home/user1/folder is not accessible: Permission denied Since the nrpe checks are done with nagios a solution is needed. You could exclude the path specifically, using the -x flag: `-x /home/user1/folder` But you’d have to do that each time you make any changes to the /etc/fstab file. In the commands above I left in the -X bind flag, which I attempted, although it does not work. I also tried -X bindfs with no luck. There are some other flags for different types of file systems. -X tmpfs -X devpts -X sysfs -X proc -X binfmt_misc -X rpc_pipefs -X nfs These can also be written as: –exclude-type=tmpfs –exclude-type=devpts –exclude-type=sysfs –exclude-type=proc –exclude-type=binfmt_misc –exclude-type=rpc_pipefs –exclude-type=nfs However, the one that is needed to exclude the bind is actually the none file system, or -X none or –exclude-type=none

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