check http port 80 warning on a site that actually exists.

[Pete Dewell]

My guess is that the server is possibly set up to always respond with a 
404 on the IP address.

check_http -H www.ludicash.com
check_http -H www.ludicash.com -S

both return OK.

If you set up your host definition with the FQDN in the "address" field 
rather than the IP address, it should work OK. I do this on several OWA 
servers/certificates that I monitor, and haven't had any problems so far.

Pete Dewell

On 01/08/2011 09:48, Henti Smith wrote:
> It looks like this is not a HTTP server.
>
> A HTTP/HEAD/1.0 request returns :
>
>
> HEAD / HTTP/1.0
>
> HTTP/1.1 404 Not Found
> Content-Length: 315
> Content-Type: text/html; charset=us-ascii
> Server: Microsoft-HTTPAPI/2.0
> Date: Mon, 01 Aug 2011 08:36:34 GMT
> Connection: close
>
>> From : http://msdn.microsoft.com/en-us/library/aa364510(v=vs.85).aspx
>
> The HTTP Server API enables applications to communicate over HTTP
> without using Microsoft Internet Information Server (IIS).
> Applications can register to receive HTTP requests for particular
> URLs, receive HTTP requests, and send HTTP responses. The HTTP Server
> API includes SSL support so that applications can exchange data over
> secure HTTP connections without IIS. It is also designed to work with
> I/O completion ports
>
> Hence it's not giving a valid response to a HTTP/1.0 request and the
> plugin returns 404 Not found.
>
> possibly use a tcp check as this is not a HTTP server ?
> On Mon, Aug 1, 2011 at 8:27 AM, Jonathan Aquilina
> <eagles051387 at gmail.com>  wrote:
>> The site is www.ludicash.com
>>
>> nagios is returning the following
>>
>> HTTP WARNING: HTTP/1.1 404 Not Found - 492 bytes in 0.164 second
>> response time
>>
>> Could it be though that they might be using a nonstandard web port?
>>
>> On 31/07/2011 03:19, Frank Bulk wrote:
>>> Can you share the URL?
>>>
>>> Frank
>>>
>>> -----Original Message-----
>>> From: Jonathan Aquilina [mailto:eagles051387 at gmail.com]
>>> Sent: Monday, July 25, 2011 7:18 AM
>>> To: Nagios Users List
>>> Subject: [Nagios-users] check http port 80 warning on a site that actually
>>> exists.
>>>
>>> I am workign with a site which i have being monitored by nagios, and for
>>> some reason when check_http runs it gets a 404, but if you go to the
>>> domain the page exists and the site exists.
>>>
>>> Would this be a false positive, and if so how can i fix it.
>>>
>>> Also another interesting matter is that when i try and run the script to
>>> check http from command line it times out even after increasing the time
>>> out timefrom the default 10 seconds to 20 for instance. Any ideas would
>>> be greatly appreciated.
>>>
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-- 

Pete Dewell | Stuff Done
pete at stuff-done.co.uk


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