Question about host up/down

[Subhendu Ghosh]

On Wed, 2 Apr 2003, Daniel Jimenez wrote:

> All,
> 
> I have one server running at a colo I monitor from my office. I have
> services set for HTTP, SSH and FTP. It's host check is PING. 
> 
> This morning the colo had to temporarily block ICMP due to DDoS, though all
> my services were still up, it showed host down. I verified in Nagios, and
> all 3 services were still green, but the host was red.
> 
> My understanding is that Nagios does not check the host unless a service
> fails, since I do not have PING as a service, what would cause this?
> 

Host checks are run on demand and can be triggered by a soft state change 
in a service as well as a hard change - do your logs show any soft service 
changes?


-- 

-sg



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