Walks through a list of servers and checks their ping time, uptime and DT

server_walk.sh

#!/bin/bash
LOCALmachine=$(hostname -f)
nownow=$(date +"%s")

#insert list of machines which you can SSH to:
reversePingMachines="hostname1.local hostname2.local"

#insert list of machine you can't SSH to - eg router,switches
forwardPingMachines="192.168.13.1 192.168.13.40"

#Time Spec is common for all entries - rounds to nearest 5 minutes
TSPEC=$(( $(( $(date +"%s") / 300)) * 300 ))

#Record Local Machine Uptime
echo ${TSPEC},$(date +"%s"),UPTIME,$LOCALmachine,\"$(uptime)\"

#Record forward Pings:
for dest in $forwardPingMachines
do
    ping -c 3 ${dest} | tail -2 | while read iii
    do
	echo ${TSPEC},$(date +"%s"),PING,$LOCALmachine,\"PING ${dest}: $iii\"
    done
done

#
# Reverse Pings --> SSH to machine and ping to local machine, also reports uptime, and
#                   very shoddy unix time difference plus or minus a couple seconds
#
#    Edit this base64,compressed script by pasting to:
#              echo [insert base64 here] | base64 -d | gunzip > temp.sh
#
#    re-encode with:
#              cat temp.sh | gzip -9 -c | base64
RPbase64=H4sIAF/6t2ACA32NwWrCQBCG7/MUf9MtZGkWqd4KHopRCWgbaHrzsiZrd8HsipviwebdnbSXFsFhDsP8M993fzfaOj/a6mjJhxP3VKSN7gwek4eYSFq9zV5Wra6t84YjG2LndWugdpKq93I+m4oJ5RVHKcQvAQpiDCnJ1DZAnH/O+uwfN6uK9VzlxWKRib+KbJOIc171iKaO0NboBmEH8bRJbuI+ygF4zUq/Dp1rjeT3g/OfUDUmTMM3Ou32UGOeTtbtDY6DylETCFy3XGXxurwyDUsGP/OT69nWBG+ILpyuW7lfAQAA

for dest in $reversePingMachines
do
    echo $RPbase64 | ssh $dest "base64 -d | gunzip | bash -s ${LOCALmachine} $(date +'%s') ${TSPEC}"
done