HTTP Monitor Question

Maybe you could define a generic basic auth account on each web server for monitoring from the BIG-IP? You could then configure the send string with an auth header.

 

 

You can't configure multiple send strings in the same monitor, but you can add multiple monitors to a pool. You can set a minimum number of checks so theoretically you can add three monitors and set it so the pool member is marked up if it responds to X number of monitors.

 

 

You can also add a monitor which will mark the member down if there is a 500 in the response. You can do this by setting the receive string to 500 - internal server error and enabling the 'reverse' option (mark the member down if the receive string is found in the response).

 

 

I think the first option would be the most effective and add the lowest load on LTM and the servers.

 

 

Aaron