Re: [squid-users] Trouble accessing Outlook Web Access

Hmmm... I'm not sure what could be the culprit, in that case.

Are you trying to perform authentication in the proxy, as well as OWA?
Transparent proxying is incompatible with proxy authentication, and
would probably result in the behavior you're seeing.

I might also suspect NTLM, but it works with explicit proxy
configuration, so that can't be the case. NTLM auth cannot be proxied.

Is OWA the only problem you're seeing?

Jan Klaverstijn wrote:
> Thanks, Joe. Sorry for not being specific about this, but I had already
> added this to my config. My current issue is the difference I see between
> explicit browser configuration of the proxy server and the transparent
> iptables approach.
>
> Jan.
>
> ----- Original Message -----
> From: "Joe Cooper" <joe@swelltech.com>
> To: "Jan Klaverstijn" <jan@klaverstijn.nl>; <squid-users@squid-cache.org>
> Sent: Monday, September 02, 2002 12:32 AM
> Subject: Re: [squid-users] Trouble accessing Outlook Web Access
>
>>Check your cache.log. I bet you do have messages pertaining to this
>>problem...
>>
>>Something along the lines of:
>>
>>2002/09/01 17:22:40| parseHttpRequest: Unsupported method 'SUBSCRIBE'
>>
>>I don't know which methods are specifically needed by OWA, but I know
>>there are a few that aren't supported by Squid 2.4 out-of-the-box. You
>>can add them easily, though (and they are in the upcoming 2.5):
>>
>>extension_methods SEARCH SUBSCRIBE UNSUBSCRIBE POLL BCOPY BPROPPATCH
>>
>>Ought to do it.
>>
>>Jan Klaverstijn wrote:
>>
>>>Hi,
>>>
>>>Getting to Outlook Web Access (OWA) through Squid is from what I learned
>>>from the faq and archives a bit of a troubled area. Nevertheless I
>>
> applied
>
>>>some recommendations and it seems to work. But not under all
>>
> circumstances.
>
>>>I use Squid 2.4STABLE3 under a Linux 2.4 kernel. Client is XP with IE6.
>>
> When
>
>>>I configure my proxy in IE6 I'm just fine. But my preferred
>>
> configuration is
>
>>>to have no proxy configured in IE6 and an iptables redirection on the
>>
> Linux
>
>>>ADSL gateway, mainly to enforce squidGuard. And in that configuration it
>>>just won't work. I get repeated prompts for signing on to outlook but
>>
> they
>
>>>always fail. The Squid logs show no messages pertaining to this
>>
> situation.
>
>>>Obviously I am wrong in my assumption that this iptables redirection is
>>>transparent to Squid compared to the configuration in IE.
>>>
>>>This is my iptables redirection syntax:
>>>
>>>iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j
>>>REDIRECT --to-port 3128
>>>
>>>Sofar OWA is the only application that is sensitive in this way. Can
>>
> someone
>
>>>shed light on this?
>>>
>>>Thanks,
>>>Jan.

-- 
Joe Cooper <joe@swelltech.com>
Web caching appliances and support.
http://www.swelltech.com