I am having trouble getting active checks to work on a remote machine using the nrpe daemon. I am trying to get data about a remote hosts disk usage. Here are my configs on the nagios host:
#CHECK_COMMANDS.CFG
Command to check remote hosts (NRPE command)
define command{
command_name check_nrpe
command_line /usr/local/nagios/libexec/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
define service{
use generic-service ; Name of service template to use
host_name remote machine I want to check
service_description Home Partition
check_command check_nrpe!check_disk1!20%!10%!/home
is_volatile 0
check_period 24x7
max_check_attempts 2
normal_check_interval 5
retry_check_interval 1
contact_groups me,pager,admin
notification_interval 960
notification_period 24x7
notification_options w,u,c,r,f
}
NAGIOS.CFG
check_external_commands=1
command_check_interval=-1
#NAGIOS and REMOTE HOST NRPE.CFG
command[check_disk1]=/usr/local/nagios/libexec/check_disk -w 20 -c 10 -p /home
Now here is the actual disk info when running command from the terminal on the remote host:
remote host# df -h
/dev/sdb3 131G 1.1G 122G 1% /home
However, the result I am getting back from Nagios for this is telling me ;
DISK_CRITICAL – Free Space
[/dev/hda1 not found]
So why is this trying to check /dev/hda1 and not the /home partition which is /dev/sdb3? I’m sure I just have something misconfigured but just can’t figure out what/where.
I’ve tried to change the nrpe.cfg file so that it reads…
command[check_disk1]=/usr/local/nagios/libexec/check_disk -w 20 -c 10 -p /dev/sdb3
But that doesn’t change the result. Anyway, if you could advise, it would be greatly appreciated. Thanks in advance !
ps I’ve also made sure that I restarted nagios service each time I made a change. And I’ve made sure that the plugins are loaded in /usr/local/nagios/libexec on the remote host (sometimes people miss the obvious). I’m sure I’m missing something, it’s just not that. 