Shell script to monitor services such as web/http, ssh, mail server
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#!/bin/bash # Shell script to monitor running services such as web/http, ssh, mail etc. # If service fails it will send an Email to ADMIN user # ------------------------------------------------------------------------- # Copyright (c) 2006 nixCraft project <http://www.cyberciti.biz/fb/> # This script is licensed under GNU GPL version 2.0 or above # ------------------------------------------------------------------------- # This script is part of nixCraft shell script collection (NSSC) # Visit http://bash.cyberciti.biz/ for more information. # ---------------------------------------------------------------------- # See URL for more info # http://www.cyberciti.biz/tips/processing-the-delimited-files-using-cut-and-awk.html # --------------------------------------------------- # service port ports="22 80 25" # service names as per above ports service="SSH WEB MAIL" # No of services to monitor as per (above ports+1) SCOUNTER=4 #Email id to send alert ADMINEMAIL="admin@myispname.com" # counter c=1 echo "Running services status:" # use sudo if you want i.e. sudo /bin/netstat /bin/netstat -tulpn | grep -vE '^Active|Proto' | while read LINE do sendMail=0 # get active port name and use : as delimiter t=$(echo $LINE | awk '{ print $4}' | cut -d: -f2) [ "$t" == "" ] && t=-1 || : # get service name from $services and : as delimiter sname=$(echo $service | cut -d' ' -f$c) sstatus="$sname: No" # now compare port for i in $ports do if [ $i -eq $t ]; then sstatus="$sname: Ok" sendMail=1 fi done # display service status as OK or NO echo "$sstatus" #next service please c=$( expr $c + 1 ) [ "$sendMail" == "0" ] && echo $sstatus | mail -s "service down $sstatus" $ADMINEMAIL || : # break afer 3 services [ $c -ge $SCOUNTER ] && break || : done
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Tags: adminemail, delimited, delimiter, echo line, echo service, expr, for loop, grep, loop method, mail service, mail services, monitor mail server, monitore web server, script collection, sendmail, service names, service status, shell loops, sudo, web mail, while loop ~ Last updated on: April 10, 2008
