Hi Folks, Nagios is acting a little weird for me, I have this external script which I hooked into Nagios, it merely does a curl/wget on a URL and returns the status based on string in the content/output. Initially for 2-3 hrs the script returns the right status and Nagios reports correctly i.e. OK, WARN, ERROR based on the exit from the script. After 2-3 hrs output which was (and should be) OK or WARN starts returning CRITICAL and the output line says "Application is" and not even "Application is ERROR" or "Application is FATAL". There is nothing in the logs to suggest what could be the problem. Have you experienced this before and let me know the corrective action. I am running Nagios on Mac OSX. Here is the script for the curious - #!/bin/bash read URL < "$1" STATUS=`curl -s $URL |grep summary|awk -F\" '{print $2}'` echo "Application is $STATUS" echo "curl $URL" case $STATUS in OK) exit 0 ;; WARN) exit 1 ;; ERROR) exit 2 ;; FATAL) exit 2 ;; *) exit 2 ;; esac Thanks, Allan.