Forum Discussion

Nimbostratus

Apr 09, 2015

Help me to understand the HC - https_head_f5

Please help me to understand the default behavior of the health check - https_head_f5 which comes default in the LTM:

Especially on the send string :- HEAD / HTTP/1.0\r\n\r\n and receive String : Server:

It will be really helpful if i get an explanation with an output from LTM.

amolari
Cirrostratus
Apr 09, 2015
the HEAD monitor sends a HEAD (instead of the classic GET, for the standard HTTP monitor) to the backend. Response from server won't include (MUST NOT, as per RFC) a message body. If you do not need the message body for your (simpler) status check, you can use that. It will save a little bandwith and server processing :-)
amolari
Cirrostratus
Apr 09, 2015
curl -I "your_url" should make it (big cap "i" and not small cap "l")