Linux monitor cpu and memory usage install#
Linux monitor cpu and memory usage update#

Vim /usr/local/nagios/etc/objects/commands.cfgĬommand_line /usr/local/nagios/libexec/check_nrpe -H $HOSTNAME$ -c event-ntp -a $SERVICESTATE$ $SERVICESTATETYPE$ $SERVICEATTEMPT$.Once everything is complete restart nrpe service and client configuration is done.Ĭonfiguring Event Handler on the Nagios Serverįirst thing you need to do is create an event-ntp command in the commands.cfg file:.NAGIOS ALL=(ALL) NOPASSWD: NAGIOSCOMMANDS The tricky, and probably not the most secure way to do this, is to modify the sudoer’s file to allow the nagios user to execute system commandsĬmnd_Alias NAGIOSCOMMANDS = /sbin/service Give execution permission and change owner and group:Ĭhmod +x /usr/lib64/nagios/plugins/event-ntpĬhown nagios:nagios /usr/lib64/nagios/plugins/event-ntp Ntpq -p | mailx -s “HOSTNAME – NTP Query – Restarted NTPD” & Ntpq -p | mailx -s “HOSTNAME – NTP Query” “$2″ inĮcho -e “Running NTP Query & Restarting NTP Service” “ ” Vim /usr/lib64/nagios/plugins/event-ntp #!/bin/bash Add the below custom command in the nrpe.cfg as shown below:Ĭommand=/usr/lib64/nagios/plugins/event-ntp $ARG1$ $ARG2$ $ARG3$ģ. usr/local/nagios/libexec/check_nrpe -H 192.168.5.180 -p 5666 -c runcmd -a httpdĮxecuting remote commands using Nagios NRPE & Event HandlerĬonfiguring the nagios client/remote machineĬhange dont_blame_nrpe=0 to don’t_blame_nrpe=1Ģ. Navigate to the Nagios command line and enter the following commands: Testing the Commands from Nagios Server Moving over to the Nagios command line, the service restart script will be using Check_Nrpe to send the command to the Service’s Host. Testing runcmd command from the nagios server: Granting NRPE Permission to Restart Services Run the following command as root to give NRPE permission to restart services.Add below mentioned command below the commands section in the nrpe.cfg file:Ĭommand=sudo service $ARG1$ restart Configuring the Command in NRPE Open your nrpe.cfg file in a text editor and add the following line to define the command in NRPE. Open NRPE configuration file and make below mentioned changes:ī.To execute commands on remote nagios client follow below steps: Yum –enablerepo=epel -y list nagios-plugins*Ģ.

Linux monitor cpu and memory usage install#

Yum –enablerepo=epel -y install nrpe nagios-plugins Working with Nagios Server and NRPE Client to automatically restart services on failureĮxecuting Remote Commands using Nagios and NRPE

Linux monitor cpu and memory usage update#

update the remote client nrpe.cfg config file with the command=/usr/lib64/nagios/plugins/check_memory -u.

in our dev environment i gave 755, please verify whether you

important to change the execute permissions to that check_memory similar to the other check_plugins(i mean, the execute permission should be given to the nagios.Copy the perl script and write it as 'check_memory' (or check_mem orĪ suitable name for you) in the same directory as where you have the.$ /usr/local/nagios/libexec/check_mem.pl -w 10 -c 5 -f This is the link from the above plugin page.simple and good documentation. its a perl script, so not even an installation needed. but the check_memory plugin is available from the Yes, i do thought why they didnt include a plugin which will check the memory, when they have included check_swap and check_disk.