How do I check if a website is up?

[Josh Wells]

Is it possible to define a host using URL rather than IP address?
 

________________________________

From: Ben O'Hara [mailto:bohara at gmail.com] 
Sent: Monday, October 20, 2008 12:34 PM
To: Josh Wells
Cc: nagios
Subject: Re: [Nagios-users] How do I check if a website is up?


What i have done in the past is,

a) create a host for www.example.com
b) ceate a host group - "External"
c) stick www.example.com in Eternal group
) add service check to host

Yu can then add numberous external checks into the group or check other
services on the host.

Seemed to make sense that way for me back then

Ben


On Mon, Oct 20, 2008 at 6:17 PM, Josh Wells <josh.wells at lionbank.com>
wrote:



	Ok I defined the command as you specified in my commands.cfg
file. I
	then added a service definition in my localhost.cfg file using
that
	command. It appears to be working. How do I configure an alert
for this
	type of check? I would like to be notified if the website is not
	reachable for more than say 5 minutes. Also while this is
functional I
	don't really like that this website check is showing up under my
nagios
	server host. I would prefer that it have its own host definition
or at
	least appear separately from the other hosts. Is it possible to
do this
	using a URL?
	
	Thanks for your help. I used the quickstart guide to get my
server up
	and running so still pretty green with nagios but I'm learning.
	
	Josh
	


	-----Original Message-----
	From: Assaf Flatto [mailto:assaf.flatto at ssp.uk.com]
	
	Sent: Monday, October 20, 2008 11:03 AM
	To: Nagios User list
	Subject: Re: [Nagios-users] How do I check if a website is up?
	
	No , you don't have to define a host .
	
	you define a service check with the fix parameters ( as i gave
in the
	previous mail ) and assign this check to an existing host .
	
	that host will execute the check and report the status returned
from the
	command ( personally i'd run it from the nagios server itself) .
	
	
	On Monday 20 October 2008 15:58:25 Josh Wells wrote:
	> Ok so if the website is external to my network I need to
create a host
	> definition? What would that look like for a URL? I've only
made host
	> definitions for internal hosts using the IP address. Because
the
	website
	> is a hosted solution I would rather define it by URL than IP
address.
	Is
	> this possible?
	>
	>
	>
	> -----Original Message-----
	> From: Assaf Flatto [mailto:assaf.flatto at ssp.uk.com]
	> Sent: Monday, October 20, 2008 10:46 AM
	> To: nagios-users at lists.sourceforge.net
	> Subject: Re: [Nagios-users] How do I check if a website is up?
	>
	> Not nessaceily .
	>
	> If you have that website in your network , you can just define
the
	> check_http check to that host.
	> also you can add in one of the parameters the specific URL you
wish to
	> query .
	>
	> -u, --url=PATH
	>     URL to GET or POST (default: /)
	>
	>
	> Or you can define a check on the nagios server it self to
query the
	web
	> site like this :
	>
	> # 'check_website' command definition
	> define command{
	>         command_name    check_website
	>         command_line    $USER1$/check_http -H www.website.com
	> }
	>
	>
	> If not , then you need to build a new host definition and
service
	check
	> for that host .
	>
	> On Monday 20 October 2008 15:18:53 Josh Wells wrote:
	> > Do I have to define a remote host such as www.website.com in
order
	to
	> > apply the check_http service against that host?
	
	
	
	--
	
	Assaf Flatto
	SSP Ops Team
	Linux System Administrator
	
	
	
	
	
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