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Vikneswaran_709's avatar
Vikneswaran_709
Icon for Nimbostratus rankNimbostratus
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.

 

application delivery
availability
LTM
management
monitor

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  • amolari's avatar
    amolari
    Icon for Cirrus rankCirrus
    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's avatar
    amolari
    Icon for Cirrus rankCirrus
    Apr 09, 2015

    curl -I "your_url" should make it (big cap "i" and not small cap "l")