F5 is upgrading its customer support chat feature on My.F5.com. Chat support will be unavailable from 6am-10am PST on 1/20/26. Refer to K000159584 for details.

Forum Discussion

paul_dcc's avatar
paul_dcc
Icon for Nimbostratus rankNimbostratus
Nov 17, 2009

Basic HTTPS monitor

I’m trying to setup a basic HTTPS health monitor for a web portal running SAP. I’ve not been using F5 Big-ip for long. Below is the error from the SAP web portal ;-)       1.5_002219A...
management
monitoring
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Nov 17, 2009
GET / is an HTTP 0.9 request which the web app might not support. The error indicates HTTP version is not found, so this does seem likely. Can you try testing using this send string:

 

 

GET / HTTP/1.0\r\nHost: \r\nConnection: close

 

 

For v9.4+ you don't need to append any extra \r\n's to the send string. For previous versions, you can check SOL2167:

 

 

SOL2167: Constructing HTTP requests for use with the HTTP or HTTPS application health monitor

 

https://support.f5.com/kb/en-us/solutions/public/2000/100/sol2167.html

 

 

Once that is working, it would be good to configure a receive string to ensure the server responds with specific content. You could try '200 OK' to start with.

 

 

Aaron