how to monitor www.domain.com without host object

[Brock Kuhse]

Sorry for the top post - I haven't quite figured out how to get Outlook 2007
to behave properly when replying to HTML emails (switching to plain text
after I hit "Reply" doesn't seem to quote the original properly).  I'm sure
I'll figure it out.   Soon.

 

Anyway, we monitor plenty of clients for whom we track the status of their
hosted sites in addition to their internal networks.  For the hosted sites,
we simply create a host object with the hosted site's IP / DNS name and
assign checks normally (check_http variations primarily).

 

-          Brock

 

From: nagios-users-bounces at lists.sourceforge.net
[mailto:nagios-users-bounces at lists.sourceforge.net] On Behalf Of August
Simonelli
Sent: Wednesday, January 23, 2008 6:23 PM
To: nagios-users at lists.sourceforge.net
Subject: [Nagios-users] how to monitor www.domain.com without host object

 

Hi Nagios-ers ...

I need a little help with some logic here.

In our network we have the usual set up:

 web servers -> VIP -> Cache -> VIP 

but then on top of the cache VIP we also use an external caching provider
(no prizes for guessing who that is, akamai) this means all requests for
www.mysite.com go to this external source via cname, which then gets
assigned a round-robin'ed IP. so it changes a lot.

now, i want to monitor all kinds of page response times, error codes and
such that i know check_http can do ... 

and i can do that easily as a service definition for my web server host
objects, or my vip host object or my squid host objects etc. 

but ... and here's where i get confused ...

i have no host objects for the external caches, so what IP do i do my
http_check tests against to ensure that i'm hitting our outermost layer as a
user would? 

put another way ... how would you all go about monitoring a website that
isn't yours (say you wanted to monitor cnn.com for all these things, what ip
would you run your checks against? can i create a host with a domain name
only? 

i'm sure this is easy and i'm just missing it ... so thanks for your gentle
help! :-)

august

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