Black Box LES1416A, LES1332A, LES1408A, LES144BA Power Cycle any device when a ping request fails

config -g $ROOTNODE.$LASTFIELDTEXT$((NUMBER+COUNTER)) \ while read LINE

do

config -s \

"`echo "$LINE" sed -e "s/$LASTFIELDTEXT$((NUMBER+ \ COUNTER))/$LASTFIELDTEXT$((NUMBER+COUNTER-1))/" \ -e 's/ /=/'`"

done

let COUNTER++

done

# deleting last user

config -d $ROOTNODE.$LASTFIELDTEXT$TOTAL

# Modifying item total.

config -s "$TOTALNODE=$NEWTOTAL"

echo Done exit 0

else

echo "error: item being deleted has an index greater than total items. Increase the total count variable."

exit 0

fi

15.1.6 Power Cycle any device when a ping request fails

The ping-detectscript is designed to run specified commands when a monitored host stops responding to ping requests.

The first parameter taken by the ping-detectscript is the hostname/IP address of the device to ping. Any other parameters are then regarded as a command to run whenever the ping to the host fails. ping- detect can run any number of commands.

Below is an example using ping-detectto power cycle an RPC (PDU) outlet whenever a specific host fails to respond to a ping request. The ping-detectruns from /etc/config/rc.local to make sure that the monitoring starts whenever the system boots.

Suppose we have a serially controlled RPC connected to port01 on a console server and have a router powered by outlet 3 on the RPC (and the router has an internal IP address of 192.168.22.2). The following instructions will show you how to continuously ping the router. When the router fails to respond to a series of pings, the console server will send a command to RPC outlet 3 to power cycle the router, and write the current date/time to a file:

-Copy the ping-detect script to /etc/config/scripts/ on the console server

-Open /etc/config/rc.local using vi

-Add the following line to rc.local:

/etc/config/scripts/ping-detect 192.168.22.2 /bin/bash -c "pmpower -l port01 -o 3 cycle && date" > /tmp/output.log &

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