using check_http with a proxy?

[Andreas Ericsson]

Marc Powell wrote:
> 
>>-----Original Message-----
>>From: Chris Mann [mailto:csmann at gmail.com]
>>Sent: Friday, February 04, 2005 2:58 PM
>>To: Marc Powell
>>Cc: nagios-users at lists.sourceforge.net
>>Subject: Re: [Nagios-users] using check_http with a proxy?
>>
>>On Fri, 4 Feb 2005 10:04:07 -0600, Marc Powell <mpowell at ena.com>
> 
> wrote:
> 
>>># 'check_via_proxy' command definition
>>>define command{
>>>        command_name    check_via_proxy
>>>        command_line    $USER1$/ check_http -H
> 
> www.sitetoretrieve.org -I
> 
>>>ip.of.proxy --onredirect follow -p 8080 -wt 20 -ct 30 -to 35 -u
>>>http://www.sitetoretrieve.org -R \/HTML
>>
>>Thanks Marc, that did the trick.
>>Would this work for ssl sites as well?
> 
> 
> 
> I haven't had reason to do that but a quick test seems to indicate the
> answer is no. --
> 
> ./check_http -H my.test.host -I my.test.proxy --onredirect follow -p
> 8080 -wt 20 -ct 30 -to 35  https://my.test.host --ssl
> 
> ERROR: Cannot retrieve server certificate.
> 
> In order to use SSL via a proxy, the proxy must be instructed to set up
> an ssl tunnel to the remote host via the CONNECT method. Glancing at the
> code, check_http seems to assume that all SSL connections are
> direct-to-host and there doesn't appear to be code to set up the
> necessary tunnel, at least that I can see.
> 
> That said, I'm using a version of the plugin that was recent as of
> 20031203. The latest plugins package may include this functionality.
> 

It doesn't. Some are asking for it though, so it might be implemented if 
you nag enough. In the meantime, I believe someone wrote up something 
really ugly to utilize wget in order to check https through proxies.

-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Lead Developer


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