Hi @davidwayne
I assume that you’re following up yourself on your other thread: Keepalive time out message
At the risk of “stating the obvious”: The “online help” for each rule mostly can explain what a rule is for. You can reach this by clicking in the little “book” icon on the top right corner. That said, the explanations I can find for those two particular rules, are the following ones:
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Service check timeout (Microcore): Using this option you can override the globally configured setting for check timeouts for individual services.
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Agent TCP connect timeout: Timeout for TCP connect to the Check_MK agent in seconds. If the connection to the agent cannot be established within this time, it is considered to be unreachable. Note: This does not limit the time the agent needs to generate its output. This rule can be used to specify a timeout on a per-host-basis.
HTH,
Thomas