Re: Nagios Plugin for IPTABLES Monitoring
Joerg Linge <[email protected]>
| Newsgroups | gmane.network.nagios.user |
|---|---|
| Message-ID | <[email protected]> |
Never test as root! Joerg Am 14.05.2013 um 10:58 schrieb Thilakraj.Shanmugam <[email protected]>: > Hi Deborah, Thanks for the response.. please find the details below. > > > [root@abc libexec]# pwd > /usr/local/nagios/libexec > [root@abc libexec]# ./check_iptables.sh <----- Executing manually script > + IPT=/sbin/iptables > + GREP=/bin/grep > + AWK=/bin/awk > + EXPR=/usr/bin/expr > + WC=/usr/bin/wc > + A=/usr/bin/sudo > + E_SUCCESS=0 > + E_CRITICAL=2 > + E_UNKNOWN=3 > ++ /usr/bin/sudo /sbin/iptables -nvL > ++ /bin/grep Chain > ++ /bin/awk '{ print $2 }' > ++ /bin/grep Cid > ++ /usr/bin/wc -l > + CHAINS=5 > + '[' 5 -ne 0 ']' > + echo 'Firewall is running!' > Firewall is running! > + exit 0 <------ it shows firewall running ( correct output ) > [root@abc libexec]# > > > Client - NRPE config file > > [root@abc libexec]# cat /usr/local/nagios/etc/nrpe.cfg |grep -i iptable > command[check_iptables]=/usr/local/nagios/libexec/check_iptables.sh > [root@abc libexec]# > > > [root@abc libexec]# ./check_nrpe -H localhost -c check_iptables > Firewall is not running <----- executing via check_nrpe ( wrong output ) > [root@abc libexec]# > > > NRPE Logs > ------------- > > May 14 18:52:28 abc nrpe[31158]: Added command[check_Partion_db]=/usr/local/nagios/libexec/check_disk -w 15% -c 5% -p /db > May 14 18:52:28 abc nrpe[31158]: Added command[check_Partion_app]=/usr/local/nagios/libexec/check_disk -w 15% -c 5% -p /app > May 14 18:52:28 abc nrpe[31158]: Added command[check_iptables]=/usr/local/nagios/libexec/check_iptables.sh > May 14 18:52:28 abc nrpe[31158]: INFO: SSL/TLS initialized. All network traffic will be encrypted. > May 14 18:52:28 abc nrpe[31158]: Handling the connection... > May 14 18:52:28 abc nrpe[31158]: Host is asking for command 'check_iptables' to be run... > May 14 18:52:28 abc nrpe[31158]: Running command: /usr/local/nagios/libexec/check_iptables.sh > May 14 18:52:28 abc nrpe[31158]: Command completed with return code 2 and output: Firewall is not running > May 14 18:52:28 abc nrpe[31158]: Return Code: 2, Output: Firewall is not running > > > Kind Regards, > Thilak > > > From: Deborah Martin [mailto:[email protected]] > Sent: Tuesday, 14 May 2013 6:44 PM > To: Nagios Users List > Subject: Re: [Nagios-users] Nagios Plugin for IPTABLES Monitoring > > Hi, > What is the wrong output being returned ? This might give us all a clue as to the cause of the problem. > When you run the check manually, are you doing this as the same user that check_nrpe will use ? > > Regards, > Deborah > > > > From: Thilakraj.Shanmugam [mailto:[email protected]] > Sent: 14 May 2013 08:43 > To: [email protected] > Subject: [Nagios-users] Nagios Plugin for IPTABLES Monitoring > > Greetings! > > Could someone send me nagios plugin which is tested and works well for monitoring IPTABLES in Linux. > > I have tested below script but it is not returning correct output to nagios server. > > If I execute script manually, it shows correct output… > > But if I execute via ./check_nrpe – H localhost –c check_iptables, it shows wrong output. > > > > Below is my plugin > ------------------------------ > > #!/bin/bash > set -x > > IPT='/sbin/iptables' > GREP='/bin/grep' > AWK='/bin/awk' > EXPR='/usr/bin/expr' > WC='/usr/bin/wc' > A='/usr/bin/sudo' > > E_SUCCESS="0" > E_CRITICAL="2" > E_UNKNOWN="3" > > CHAINS=`$A $IPT -nvL | $GREP 'Chain' | $AWK '{ print $2 }'| $GREP Cid | $WC -l` > > if [ $CHAINS -ne 0 ] ; then > echo "Firewall is running!" > exit ${E_SUCCESS} > > elif [ $CHAINS -eq 0 ] ; then > echo "Firewall is not running" > exit ${E_CRITICAL} > fi > > > This e-mail and any files transmitted with it are strictly confidential and intended solely for the use of the individual or entity to whom they are addressed. 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Download a free trial. http://p.sf.net/sfu/alienvault_d2d _______________________________________________ Nagios-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null