Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

diegonzal_22654's avatar
diegonzal_22654
Icon for Nimbostratus rankNimbostratus
Mar 26, 2012

Custom Monitor using Send/Receive strings

Hello,     I have been trying to create a custom monitor that checks a certain internal site for it's availability by looking for a string on the page once the page is available. The word is "...
management
monitoring
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Mar 26, 2012
Can you try the steps outlined here:

 

 

https://devcentral.f5.com/wiki/AdvDesignConfig.TroubleshootingLtmMonitors.ashx

 

 

Try sending a curl request from LTM to the pool member and check the response headers/content to see if they contain the string Password:

 

 

curl -v http://1.1.1.1/PEARL-ADMIN/admin/images/logo.gif

 

 

If that does contain the string Password, then you can run tcpdump to compare the curl request with bigd's monitor request.

 

 

Aaron