Trying to load balance a few DNS servers. Currently have the check type set to PING. However, I want it to do a UDP check on port 53. This is where I get lost.
The load balancer doesn't have a port selection. Thus I am not sure I understand how the UDP check type works? Does it use some default port?
I want it to check if the DNS is running. I did a test by selecting UDP for check type and then disabling DNS on one of the servers. It continued to show the server as UP even though the DNS was shut off.
Any help on how I can get this done would be appreciated.
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