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Operating Systems Solaris PING broken check
# 8  
Old 06-21-2011
sleep 5 -- waiting for 5 seconds, after that we are pinging the host

Code:
#!/bin/sh
for i in `cat /tmp/PingStatus.txt`
do
sleep 5; ping $i | grep -w "alive" && echo "$i is OK" || opcmsg object=PING a=OS msg_grp=OpC severity=critical msg_text="PING BROKEN on $i"
done

This User Gave Thanks to itkamaraj For This Post:
mjoshi87
# 9  
Old 06-21-2011
Quote:
Originally Posted by itkamaraj
sleep 5 -- waiting for 5 seconds, after that we are pinging the host

Code:
#!/bin/sh
for i in `cat /tmp/PingStatus.txt`
do
sleep 5; ping $i | grep -w "alive" && echo "$i is OK" || opcmsg object=PING a=OS msg_grp=OpC severity=critical msg_text="PING BROKEN on $i"
done

That's a useless use of cat and useless use of backticks. Whenever you have for x in `cat file` you can do it better as

Code:
#!/bin/sh
while read i
do
sleep 5; ping $i | grep -w "alive" && echo "$i is OK" || opcmsg object=PING a=OS msg_grp=OpC severity=critical msg_text="PING BROKEN on $i"
done < /tmp/PingStatus.txt

That way you're not trying to cram entire files into shell variables at once and potentially truncating them.
Last edited by Corona688; 06-21-2011 at 12:25 PM..
This User Gave Thanks to Corona688 For This Post:
mjoshi87
# 10  
Old 06-21-2011
Need to discuss a general query:

root@ggnems21 # ping -s ggnems23
PING ggnems23: 56 data bytes
64 bytes from ggnems23.aircel.co.in (172.18.124.38): icmp_seq=0. time=17.6 ms
64 bytes from ggnems23.aircel.co.in (172.18.124.38): icmp_seq=1. time=38.3 ms
64 bytes from ggnems23.aircel.co.in (172.18.124.38): icmp_seq=2. time=122. ms
64 bytes from ggnems23.aircel.co.in (172.18.124.38): icmp_seq=3. time=235. ms
64 bytes from ggnems23.aircel.co.in (172.18.124.38): icmp_seq=4. time=24.8 ms
^C
----ggnems23 PING Statistics----
5 packets transmitted, 5 packets received, 0% packet loss
round-trip (ms) min/avg/max/stddev = 17.6/87.5/235./92.


when is Ping Broken is valid ? i.e at what packet percentage i should comment it as PING BROKEN?

---------- Post updated at 01:10 AM ---------- Previous update was at 01:07 AM ----------

at what percentage packet loss?
If so then i would require this packet loss percetage to be included within my script
# 11  
Old 06-21-2011
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# 12  
Old 06-21-2011
Quote:
Originally Posted by Corona688
That's a useless use of cat and useless use of backticks. Whenever you have for x in `cat file` you can do it better as

Code:
#!/bin/sh
while read i
do
sleep 5; ping $i | grep -w "alive" && echo "$i is OK" || opcmsg object=PING a=OS msg_grp=OpC severity=critical msg_text="PING BROKEN on $i"
done < cat /tmp/PingStatus.txt

That way you're not trying to cram entire files into shell variables at once and potentially truncating them.
@corona

thanks for your tips.

any way, in the while loop, we dont want to put cat

cat /tmp/PingStatus.txt

we can use /tmp/PingStatus.txt itself

correct me, if i am wrong
# 13  
Old 06-21-2011
Quote:
Originally Posted by itkamaraj
@corona

thanks for your tips.

any way, in the while loop, we dont want to put cat

cat /tmp/PingStatus.txt

we can use /tmp/PingStatus.txt itself

correct me, if i am wrong
You are correct. the 'cat' was left in by accident, sorry.
# 14  
Old 06-21-2011
Quote:
Originally Posted by mjoshi87
Need to discuss a general query:

root@ggnems21 # ping -s ggnems23
PING ggnems23: 56 data bytes
64 bytes from ggnems23.aircel.co.in (172.18.124.38): icmp_seq=0. time=17.6 ms
64 bytes from ggnems23.aircel.co.in (172.18.124.38): icmp_seq=1. time=38.3 ms
64 bytes from ggnems23.aircel.co.in (172.18.124.38): icmp_seq=2. time=122. ms
64 bytes from ggnems23.aircel.co.in (172.18.124.38): icmp_seq=3. time=235. ms
64 bytes from ggnems23.aircel.co.in (172.18.124.38): icmp_seq=4. time=24.8 ms
^C
----ggnems23 PING Statistics----
5 packets transmitted, 5 packets received, 0% packet loss
round-trip (ms) min/avg/max/stddev = 17.6/87.5/235./92.


when is Ping Broken is valid ? i.e at what packet percentage i should comment it as PING BROKEN?

---------- Post updated at 01:10 AM ---------- Previous update was at 01:07 AM ----------

at what percentage packet loss?
If so then i would require this packet loss percetage to be included within my script


i try some script for your needs Smilie
Code:
# cat pinglist
localhost
localhost2
192.168.80.130

you can use this format "./testping.sh counts(packet try) hostlistfile"
and i defined some values in script like ; pingloss of percent(threshold value)=%50 ; send packet try waits=2..
but you change all settings if you think what about its..
for example
Code:
# ./testping.sh 1 pinglist
"localhost" is alive with "%0 of %100 loss rate" at 1 packet tries in 2 seconds intervals
 
ping: unknown host localhost2
ping failed while sending 'echo_request(s)' to "localhost2"
check!! host access (/network or firewall or route(ing) settings/) or
check!! resolution (/hosts/dns/nsswitch)!!
or
check!! be sure host is power up or
check!! is ping enabled in o.s or switch(s) or router(s)
 
ping failed while sending 'echo_request(s)' to "192.168.80.130"
check!! host access (/network or firewall or route(ing) settings/) or
check!! resolution (/hosts/dns/nsswitch)!!
or
check!! be sure host is power up or
check!! is ping enabled in o.s or switch(s) or router(s)

Code:
# cat testping.sh
## justdoit ## ping test on SUN OS ##
#!/usr/bin/bash
if [ $# != 2 ] ; then echo "usage $0 'packetcount' hostlistfile" ; exit 0 ; fi
sleep=2 ; c=$1 # count for packets
while read -r host ; do
(sleep $sleep;ping -s $host 56 $c >/dev/null) &
pid=$! ; wait $pid
if [ $? -eq 0 ] ; then
PL=$(i=1;while [ $i -le $c ] ; do sleep $sleep;ping -s $host 56 $c ;((i++));done)
echo "$PL"|nawk -F, -v c=$1 -v host=$host -v sleep=$sleep '/packets/{sub("% packet loss","",$3)}{t+=$3}
END{if(t>50*c){print "ping problem in \""host"\" !!\nping loss \"%"t" of %"100*c"\" for at "c" packet tries in "sleep" seconds intervals\n"}
else {print "\""host"\" is alive with \"%"t" of %"100*c" loss rate\" at "c" packet tries in "sleep" seconds intervals\n"}}'
else echo -e "ping failed while sending 'echo_request(s)' to \"$host\"\n\
check!! host access (/network or firewall or route(ing) settings/) or \ncheck!! resolution (/hosts/dns/nsswitch)!!\n\
or \ncheck!! be sure host is power up or \ncheck!! is ping enabled in o.s or switch(s) or router(s)\n"
fi;done<$2

regards
ygemici
This User Gave Thanks to ygemici For This Post:
mjoshi87
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