check_eth

This plugins monitor realtime traffic on linux server interface on any distribution centos,redhat,debian etc . In old version by joseph stats are calculated wrong way not realtime but after my changes it will monitor your stats realtime transfer rate of interface.
Steps: apply this plugin like this
—————————————————
./check_eth -i eth0 -w 1024K Bps -c 2048K Bps
where i=interface
-w=Warning can be defined in KB,MB etc like (-w 1024K Bps or -w 1M Bps)
-c =Critical can be defined in KB,MB etc like (-c 2048K Bps or -c 2M Bps)
2.also # cd /tmp
# ls -lha | grep traffic
there is file name traffic-eth0 or traffic-eth1 according to your interface
change its permission as per your nrpe user like
chown nagios:nagios traffic-eth0 or if nrpe user is nrpe then chown nrpe:nrpe traffic-eth0 so that nrpe have write permission on it.

Result:after that apply as per in your nrpe.cfg on remote and cheers you will get realtime traffic rate on nagios 🙂

#./check_eth -i eth0 -w 1024K Bps -c 2048K Bps
Traffic on eth0 : RX Bytes: 1TB, TX Bytes: 3TB: RX Speed: 129KBps, TX Speed: 248KBps: OK bandwidth utilization

#### for commands.cfg if you want to monitor nagios interface traffic
## vim /usr/local/nagios/etc/objects/commands.cfg then add
# ‘check_eth’ command definition
define command{
command_name check_eth
command_line $USER1$/check_eth -i eth0 -w 1024K Bps -c 2048K Bps
}

### after that in nagios service monitoring file add like this.
define service{
use local-service ; Name of service template to use
host_name NMS
service_description Interface Eth0
check_command check_eth
}

## after adding restart nagios service after verification command.
Thanks