<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> <meta name="Generator" content="Microsoft Word 14 (filtered medium)"> <style></style> </head> <body lang="EN-GB" link="blue" vlink="purple"> <div class="WordSection1"> Hi, <o:p></o:p> What is the wrong output being returned ? This might give us all a clue as to the cause of the problem. <o:p></o:p> When you run the check manually, are you doing this as the same user that check_nrpe will use ? <o:p></o:p> <o:p> </o:p> Regards,<o:p></o:p> Deborah <o:p></o:p> <o:p> </o:p> <o:p> </o:p> <o:p> </o:p> <div> <div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"> From: Thilakraj.Shanmugam [mailto:Thilakraj.Shanmugam@canberra.edu.au] Sent: 14 May 2013 08:43 To: nagios-users@lists.sourceforge.net Subject: [Nagios-users] Nagios Plugin for IPTABLES Monitoring<o:p></o:p> </div> </div> <o:p> </o:p> Greetings!<o:p></o:p> <o:p> </o:p> Could someone send me nagios plugin which is tested and works well for monitoring IPTABLES in Linux.<o:p></o:p> <o:p> </o:p> I have tested below script but it is not returning correct output to nagios server.<o:p></o:p> <o:p> </o:p> If I execute script manually, it shows correct output…<o:p></o:p> <o:p> </o:p> But if I execute via ./check_nrpe – H localhost –c check_iptables, it shows wrong output.<o:p></o:p> <o:p> </o:p> <o:p> </o:p> <o:p> </o:p> Below is my plugin<o:p></o:p> ------------------------------<o:p></o:p> <o:p> </o:p> #!/bin/bash<o:p></o:p> set -x<o:p></o:p> <o:p> </o:p> IPT='/sbin/iptables'<o:p></o:p> GREP='/bin/grep'<o:p></o:p> AWK='/bin/awk'<o:p></o:p> EXPR='/usr/bin/expr'<o:p></o:p> WC='/usr/bin/wc'<o:p></o:p> A='/usr/bin/sudo'<o:p></o:p> <o:p> </o:p> E_SUCCESS="0"<o:p></o:p> E_CRITICAL="2"<o:p></o:p> E_UNKNOWN="3"<o:p></o:p> <o:p> </o:p> CHAINS=`$A $IPT -nvL | $GREP 'Chain' | $AWK '{ print $2 }'| $GREP Cid | $WC -l`<o:p></o:p> <o:p> </o:p> if [ $CHAINS -ne 0 ] ; then<o:p></o:p> echo "Firewall is running!"<o:p></o:p> exit ${E_SUCCESS}<o:p></o:p> <o:p> </o:p> elif [ $CHAINS -eq 0 ] ; then<o:p></o:p> echo "Firewall is not running"<o:p></o:p> exit ${E_CRITICAL}<o:p></o:p> fi<o:p></o:p> <o:p> </o:p> </div> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Untitled Document</title> <style type="text/css">  </style> </head> <body> 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. If you are not the intended recipient, please delete this e-mail immediately. Any unauthorised distribution or copying is strictly prohibited. Whilst Kognitio endeavours to prevent the transmission of viruses via e-mail, we cannot guarantee that any e-mail or attachment is free from computer viruses and you are strongly advised to undertake your own anti-virus precautions. Kognitio grants no warranties regarding performance, use or quality of any e-mail or attachment and undertakes no liability for loss or damage, howsoever caused. </body> </html> </body> </html>