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

Henti Smith henti at geekware.co.za
Mon Aug 1 10:48:54 CEST 2011


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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