Host vs Service reachability

[Jason Frisvold]

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Hi all,

	I'm looking at possibly disabling my service pings and moving over
completely to host checks for reachability.  I'm unsure of the exact
mechanics, though, so if someone can help me out, I'd appreciate it.

	So, to start, if a host has no current services, is the host_check
still intermittent?  Or does it become an active check at a specific
interval, similar to a service?  We have several hosts that we only
check for connectivity as opposed to services, for a variety of reasons.

	From what I've read of Nagios 3, it sounds like using host checks is
more efficient.  Are there instances, though, where services may show
up, but the host is down?  Does the host_check run at specified
intervals, even though service checks don't show a problem?

	Is there a compelling reason to not do this?  ie, am I inviting a world
of hurt by using host checks vs a service ping?

Thanks,

- --
- ---------------------------
Jason Frisvold
Network Engineer
frisvolj at lafayette.edu
- ---------------------------
"What I cannot create, I do not understand"
   - Richard Feynman
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