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pmaubo3_109863
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Aug 07, 2012

Setting up health check for node when using host headers

I recently discovered when using a IIS host headers that if I setup a health check page on the F5 LTM that it does not really check the node but the VIP.

 

Is there some type of irule that I could use on the LTM to actually check the status of each node in a pool?

 

 

5 Replies

  • the questions is not 100% clear to me, you are trying to setup a health check page on the F5 LTM. how do you setup a health page on the F5 LTM?

     

     

    or do you want the the F5 to check the different virtual hosts on the IIS server? in that case you can use host headers in a health monitor by adding Host:www.dummy.com to the Send String. but im not quite sure that is what you are looking for here.
  • As Boneyard said, if you have multiple web apps or IIS virtual servers set up with host header mappings and you want to check the individual IIS virtual server, you'd need to create one custom HTTP or HTTPS monitor with the host header hardcoded in the monitor send string.

     

     

    Aaron
  • Send String: GET /monitorpage.htm HTTP/1.1\nHost: mysite.mycompany.com \nConnection: close\n\n

     

    Receive String: what ever text you want
  • You can also create separate monitors in the GUI with the corresponding Host header in the Send String and apply these at the respective pool members.