Network Connections, Stats and Bandwidth

check_ifutil.pl

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Description:

Collects network interface traffic stats and calculates bandwidth utilization. (*nix only)

$ perl check_ifutil.pl

Usage: check_ifutil.pl -i -w -c [-p -b ]

-i, –interface STRING
Network interface name (example: eth0)
-w, –warning STRING
Warning interface speed level (K/M/G Bps, k/m/g bps)
If using with -p value should be in percentage (1-100)
-c, –critilcal STRING
Critical interface speed level (K/M/G Bps, k/m/g bps)
If using with -p value should be in percentage (1-100)
-p
Calculate warning and critical levels in percentage based on interface bandwidth
-b, –bandwidth STRING
Interface bandwidth value (K/M/G Bps, k/m/g bps)

Changelog:
v0.2 – Fixes ‘uninitialized value’ bug

Current Version

v0.3b

Last Release Date

2016-10-19

Compatible With

  • Nagios 3.x

Owner

Joseph Brains

License

GPL

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Project Files
FileDescription
nagiosgraph_network_traffic.png

example nagiosgraph output

check_ifutil.pl

v0.3b

Project Notes
Reviews (8) Add a Review
Strange
by Engr.Adeel, October 31, 2016
I have configrd check_ifutil on debian jessie 8.5...it gives output of ethernet on locally but in nagios...update the old value very very slow...like...if eth tx:450KBps..and server traffic increases to 50MBps/sec...then this plugin return...only 5MBps...until i have to manually run the script on server then nagios update its value to 50MBps....plz solve this
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Use of uninitialized value in stri
by gerardjp, November 30, 2014
Seems like a cool plugin but I cant get rid of the 'unuinitialized' error:

perl ./setup/temp/check_ifutil.pl -i eth0 -w 10 -c 20 -b 10Mbps
Use of uninitialized value in string ne at ./setup/temp/check_ifutil.pl line 154.
Use of uninitialized value in string ne at ./setup/temp/check_ifutil.pl line 154.
Use of uninitialized value in string ne at ./setup/temp/check_ifutil.pl line 154.
Use of uninitialized value in string ne at ./setup/temp/check_ifutil.pl line 154.
RX Bytes:
1 of 2 found this review helpful.
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Wonderfull Script
by hchavan, June 30, 2014
Thank you so much. Was very usefull
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Nagios graph integration
by Laurentiu, October 31, 2013
I would like to integrate this script with nagiosgraph too. Can someone give some step by step informations.
I`m new with Nagios and Nagiosgraph. I managed to install and configure Nagios and Nagiosgraph but now I don`t know how to integrate this script. I need this script to monitor localhost ethernet interface.

Thanks in advance!

Great job!
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fyi - linux only
by jsellens, April 30, 2013
Handy script, but should mention that it runs on linux only - it reads /proc/net/dev, so unfortunately it won't help you monitor a switch or other network device.
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works straightaway in NagiosXI
by SJTesla, September 30, 2012
Nice little plugin. Since XI has its own grapher, I only had to integrate this plugin into nagiosxi and it just worked. Thanks!
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Excelent work!
by victor.laza, July 31, 2012
Hi,

I have searched a lot for a working plugin like this to integrate with nagios 3.4 and nagiosgraph.
From many tested this is the only one working for me that is also generating perfdata.
I have chosed to change my " $bitmod = BYTES; " to " my $bitmod = BITS; " and here is an example of usage in my case: " /usr/bin/perl /root/check_if.pl -i eth1 -w 700m -c 900m -b 1000m " (this is for a gigabit interface)

Nice work for the author!
1 of 1 found this review helpful.
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very nice
by xoroz, July 31, 2011
Thanks for that great script.
The output is something like
RX Bytes: 661GB, TX Bytes: 150GB; RX Speed: 62KBps, TX Speed: 25KBps; OK bandwidth utilization | rx=63021;1152921504606846976;3458764513820540928 tx=25090;1152921504606846976;3458764513820540928

And I could graph it too!
2 of 2 found this review helpful.
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