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This plugin check if the number of iptables rules loaded and the ones that are supposed to be loaded are the same. If the numbers are not ok it notifies nagios and logs on /var/log/iptables the users logged in at the time.
Current Version
0.6.1
Last Release Date
2011-02-10
Owner
Rhommel Lamas
Website
http://www.techironic.com
Download URL
http://techironic.com/dev/check_iptables
License
GPL
Compatible With
0.6.1 version - Fixes to error handling, and coding mistakes.
Documentation about iptables: ~:# man iptables This scripts is intended to be used to check if your iptables rules are set correctly load at any time, I didn't find a better way to check if a server has your rules loaded so I check the number of configured rules and if they are less than they should be Nagios will send an alert using it notify service.
Hi... I managed to get this somewhat operational on the local machine by adding the nagios user to the sudoers file.. nagios ALL= NOPASSWD: /sbin/iptables Then I added the sudo to the plugin.. CHKIPTBLS=`sudo /sbin/iptables -n -t filter -L |wc -l` However that only sorted out the local execution environment.. When I try to invoke from the foreign Nagios server, it still doesn't quite execute :( [The Command] /usr/local/nagios/libexec/check_nrpe -H {the_other_machine_ip} -c check_iprule_no -a RH-Firewall-1-INPUT 15 [The Output] CRITICAL - Iptables are CRITICAL The Table RH-Firewall-1-INPUT and Chain has 0 rules configured However it works nicely on the NRPE local machine.. [Output] OK - Iptables are OK The Table RH-Firewall-1-INPUT and Chain has 28 rules configured
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