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Kerberos Utility Error Message

 
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# 1  
Old 09-30-2015
Kerberos Utility Error Message
Hello All,
I have below piece of code executing via shell script but for some reason even if the flag is set to KERBEROS_FLAG="N" It displays an message at the end of script execution. It should not call /usr/bin/kdestroy but looks like it is happening and this happens only for one application id other application id it is working fine.

Code:
KERBEROS_FLAG="N"

if [ "$KERBEROS_FLAG" = "Y" ]
then
        echo "  "
        echo "-->Testing Kerbros connectivity For $APPLICATION_ID To Destination Server $FA_EDW_SERVER"
        KEY_FILE="/export/appl/uxprod/etc/kerberos/$FA_EDW_SCP_USER/ssh-$FA_EDW_SCP_USER-$FA_EDW_SERVER.keytab"
        /usr/bin/kinit -k -t ${KEY_FILE} ssh/$APPLICATION_ID/$FA_SOURCE_SERVER
        if [ "$?" -eq "0" ]
        then
                echo "Successfully Connected To destination Server $FA_EDW_SERVER via Kerberos Utility"
                /usr/bin/kdestroy
        else
                echo "ERROR Connecting To destination Server $FA_EDW_SERVER via Kerberos Utility"
        fi
fi


Message:
kdestroy: No credentials cache found while destroying cache
This User Gave Thanks to Ariean For This Post:
hawk31
# 2  
Old 09-30-2015
hi
My opinion
you wrote KERBEROS_FLAG="N"
There is no chance that the y.
# 3  
Old 09-30-2015
yes that flag would never be Y but still for some reason script is putting that message to standard output, hence the question.
# 4  
Old 09-30-2015
Are you sure the message is from that part of the script? Try running it with the -x option set; post result.
# 5  
Old 09-30-2015
That is strange.

It is probably time for some debugging; modify your script the following way:

Code:
set  -xv
KERBEROS_FLAG="N"

if [ "$KERBEROS_FLAG" = "Y" ]
then
        echo "  "
        echo "-->Testing Kerbros connectivity For $APPLICATION_ID To Destination Server $FA_EDW_SERVER"
        KEY_FILE="/export/appl/uxprod/etc/kerberos/$FA_EDW_SCP_USER/ssh-$FA_EDW_SCP_USER-$FA_EDW_SERVER.keytab"
        /usr/bin/kinit -k -t ${KEY_FILE} ssh/$APPLICATION_ID/$FA_SOURCE_SERVER
        if [ "$?" -eq "0" ]
        then
                echo "Successfully Connected To destination Server $FA_EDW_SERVER via Kerberos Utility"
                /usr/bin/kdestroy
        else
                echo "ERROR Connecting To destination Server $FA_EDW_SERVER via Kerberos Utility"
        fi
fi
set +xv

Then run it again and post the output. Notice that the output is going to stderr, so you need to run it that way:

Code:
script.sh 2>&1 > /some/log/file

Just a suggestion, which seems not related to your problem but may help you anyway: when you mix variables and fixed code you better write variable names this way, to avoid any ambiguity (notice the curly braces around the variable names):

Code:
string="fixed${var1}fixedagain${var2}fixed${var3}..."

I hope this helps.

bakunin
 
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