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03-04-2008
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SSH Connectivity script
Hi all,
I have developed a script to list out the servers that is not able to connect to the remote host. The problem with this script is it, if the remote server ask for a password it gets struck there. It works only if the server name is invalid Ex: Lets say ssh -q test@test "exit" < /dev/null the script will throw that test server is invalid. Lets say now UserA and ServerA is valid but when we ssh to the server, it ask for a password and script hangs ssh -q UserA@ServerA "exit" < /dev/null Code Code:
check_ssh()
{
ssh -q $1@$2 "exit" < /dev/null
[ $? -ne "0" ] && return 1 || return 0
}
INP_FILE=Config.ini
for line in $(grep -v "^#" $INP_FILE | cut -d',' -f2,5 | sort | uniq)
do
myUser=$(echo $line| cut -d',' -f2)
myServer=$(echo $line| cut -d',' -f1)
check_ssh $myUser $myServer
[ $? -eq "1" ] && echo "Please check !!! $myServer - $myUser"
done
echo " *** END *** "
exit
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03-05-2008
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... but what are you exacly testing for?
Whether you can connect or not? Whether sshd is running or not? If you can connect to the hosts without a pasword using ssh keys?
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03-05-2008
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Quote:
I just want to capture the server names that we are not able to ssh, so that we can skip those servers from executing the command. Hope this makes clear !!
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03-06-2008
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Got it !!!
Code:
check_ssh()
{
ssh -q -o "BatchMode=yes" $1@$2 "exit" < /dev/null
[ $? -ne "0" ] && return 1 || return 0
}
INP_FILE=Config.ini
for line in $(grep -v "^#" $INP_FILE | cut -d',' -f2,5 | sort | uniq)
do
myUser=$(echo $line| cut -d',' -f2)
myServer=$(echo $line| cut -d',' -f1)
check_ssh $myUser $myServer
[ $? -eq "1" ] && echo "Please check !!! $myServer - $myUser"
done
echo " *** END *** "
exit
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