[SATLUG] program or cron job to ping internal devices & email
bruce.dubbs at gmail.com
Wed Jan 16 11:07:48 CST 2008
> Does know or have a program or cron job that can ping network devices and if
> down send out an email?
You can try some variation of:
echo -n "Pinging $1 "
s=`ping -w$2 -q $1`
echo $s | grep duplicate > /dev/null && field=-f20
loss=`echo $s|cut -d" " $field`
echo "-- $loss packet loss ($3)"
if [ $# -eq 0 ]; then timeout=10; else timeout=$1; fi
pingit 172.24.0.3 $timeout phobos0
pingit 172.24.0.5 $timeout venus0
pingit 172.21.0.3 $timeout deimos0
Note that there are a couple variations of the ping program. You want
the one from iputils: http://www.linux-foundation.org/en/Net:Iputils
Check to see what verion of ping you have with `ping -V`. What you need
is the -w option:
Specify a timeout, in seconds, before ping exits regardless of how
many packets have been sent or received. In this case ping does not
stop after count packet are sent, it waits either for deadline expire or
until count probes are answered or for some error notification from network.
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