<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)"><base href="x-msg://65/"><style></style></head><body lang=EN-AU link=blue vlink=purple><div class=WordSection1>Current as in installed, or current as in available?<o:p></o:p><o:p> </o:p>We wrote this a while ago to see if the most recently installed kernel is the bootable kernel:<o:p></o:p><div style='mso-element:para-border-div;border:none;border-bottom:solid windowtext 1.0pt;padding:0cm 0cm 1.0pt 0cm'><o:p> </o:p></div>#!/bin/bash<o:p></o:p>#<o:p></o:p># Check if current kernel is being used.<o:p></o:p>#<o:p></o:p><o:p> </o:p>GRUBBY=/sbin/grubby<o:p></o:p>GREP=/bin/grep<o:p></o:p>UNAME=/bin/uname<o:p></o:p><o:p> </o:p>OUTPUT="Current kernel running."<o:p></o:p>EXIT_VAL=0<o:p></o:p><o:p> </o:p>if $GRUBBY --default-kernel | $GREP -vq $($UNAME -r); then<o:p></o:p> OUTPUT="Kernel updated, reboot required."<o:p></o:p> EXIT_VAL=1<o:p></o:p>fi<o:p></o:p><o:p> </o:p>echo $OUTPUT<o:p></o:p><div style='mso-element:para-border-div;border:none;border-bottom:solid windowtext 1.0pt;padding:0cm 0cm 1.0pt 0cm'>exit $EXIT_VAL<o:p></o:p></div><o:p> </o:p><div style='mso-element:para-border-div;border:none;border-bottom:solid windowtext 1.0pt;padding:0cm 0cm 1.0pt 0cm'>But as Daniel said, a trivial plugin it's NRPE calling the two-line routine:<o:p></o:p><o:p> </o:p></div>#!/bin/bash<o:p></o:p>/bin/uname -r<o:p></o:p><div style='mso-element:para-border-div;border:none;border-bottom:solid windowtext 1.0pt;padding:0cm 0cm 1.0pt 0cm'>exit $?<o:p></o:p></div><o:p> </o:p>Or using SNMP:<o:p></o:p><div style='mso-element:para-border-div;border:none;border-bottom:solid windowtext 1.0pt;padding:0cm 0cm 1.0pt 0cm'><o:p> </o:p></div>define command {<o:p></o:p> command_name return_kernel_version<o:p></o:p> command_line $USER1$/check_snmp -H $HOSTADDRESS$ -o SNMPv2-MIB::sysDescr.0 -P 2c -C public<o:p></o:p><div style='mso-element:para-border-div;border:none;border-bottom:solid windowtext 1.0pt;padding:0cm 0cm 1.0pt 0cm'>}<o:p></o:p></div><o:p> </o:p>The choice of what to use is yours.<o:p></o:p><o:p> </o:p>Stuart<o:p></o:p><o:p> </o:p><div style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>From: Daniel Wittenberg [mailto:daniel.wittenberg.r0ko@statefarm.com] Sent: Friday, 29 June 2012 1:18 PM To: Nagios Users List Subject: Re: [Nagios-users] Linux Kernel Version<o:p></o:p></div></div><o:p> </o:p>I haven't seen one, but would be trivial to write one. You looking to see the rpm -q kernel output or something like uname -a? <o:p></o:p><div><o:p> </o:p></div><div>Dan<o:p></o:p></div><div><o:p> </o:p><div><div>On Jun 28, 2012, at 10:10 PM, Edwin Zoeller wrote:<o:p></o:p></div> <o:p></o:p><div><div>Does anyone know of or have a plugin that will display the current kernel level for Redhat?<o:p></o:p></div><div> <o:p></o:p></div><div>Thanks,<o:p></o:p></div><div> <o:p></o:p></div><div>Ed<o:p></o:p></div><div> <o:p></o:p></div><div>P Please consider the environment before printing this e-mail<o:p></o:p></div>------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. <a href="http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/_______________________________________________">http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/_______________________________________________</a> Nagios-users mailing list <a href="mailto:Nagios-users@lists.sourceforge.net">Nagios-users@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/nagios-users">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null<o:p></o:p></div></div><o:p> </o:p></div></div></div></body></html>