Forum Discussion

Cirrostratus

Jun 21, 2023

Solved

HTTP Monitor

Hello, I want to set up an HTTP monitor that tests "200 OK" but the page is on port 40000 (the pool is on 80). I tried, but it doesn't work Send String : GET /index.html HTTP/1.1\r\nHost:40000 \r\...

application delivery

whisperer
Jun 21, 2023
You want to use an alias service port monitor. Look at #25 at the following article: https://techdocs.f5.com/kb/en-us/products/big-iq-centralized-mgmt/manuals/product/big-iq-centralized-management-local-traffic-and-network-implementations-6-0-0/5.html. In the above, you have 40000 as the host name in the host HTTP header which is not appropriate. This is usually a virtual server fqdn or some other web server alias to which the server would listen for and respond.

whisperer

MVP

You want to use an alias service port monitor. Look at #25 at the following article: https://techdocs.f5.com/kb/en-us/products/big-iq-centralized-mgmt/manuals/product/big-iq-centralized-management-local-traffic-and-network-implementations-6-0-0/5.html. In the above, you have 40000 as the host name in the host HTTP header which is not appropriate. This is usually a virtual server fqdn or some other web server alias to which the server would listen for and respond.

whisperer

MVP

Jun 21, 2023

Damn mobile version of website threw out half of my response! Wtf. I also stated that using 40000 as the host name in thr HTTP host header is not appropriate. This is instead usually the DNS name for the server on which the we server listens for and responds. Traditionally, you would target http://ip_address:port, but with the F5 HTTP monitor you need to use an alias service monitor for your particular application to perform the same thing.

cpt_ri_F5
Cirrostratus
Jun 21, 2023
Thank you,
not work, what should I set in "Send String"?
FY, curl backend:40000 >> 200 OK
- cpt_ri_F5
  Cirrostratus
  Jun 21, 2023
  working
  HEAD / HTTP/1.1\r\nHost: Close\r\n\r\n
  Thank you whisperer

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