Re: [squid-users] Dynamic Logon page problem

We've seen this (why is it always car dealers?!?).

As always, the site isn't breaking just because of caching--it is
breaking because it can't be proxied. You have to bypass Squid for
these sites. Choosing no_cache just means they don't get cached...they
are still being proxied. I suspect these sites are using IP based
'authentication', and when the user is bounced off of the cache by being
redirected to an SSL site, the site blocks the user.

Add a bypass rule to your redirection script (i.e. an ACCEPT before the
REDIRECT)t.

Lewey Taylor wrote:
> I have squid 2.4 stable4 on Redhat 7 with kernel 2.4.9-31. This is in
> a small ISP environment using transparent proxy. We use IPtables to
> redirect port 80.
>
> All went well for a number of months until we added our local Ford
> dealer to our network. They access a secure ASP site. The first page
> is a login. After a successful login a temp page comes up and says
> the user will be redirected to the main site with a "click here if the
> page does not come up button". Well the page never loads. It does
> try to load the URL but just hangs. You can hit back and click the
> button before the redirect and get in. Once in, there is a link that
> brings you to another page that will not load. This page keeps asking
> the user to login again and keeps LOOPING back.
>
> We also just added another local dealer. This one is a Chevy dealer
> that has a link in their secure site that uses JavaScript to pull up a
> cold fusion form for sending mail. Locks when trying to load just
> like the other site.
>
> I have brought down squid and both sites work fine with no caching. I
> have tried always_direct and no_cache with domains and ip's. I also
> tried adding .asp? .cfm? to query no_cache.
>
> Sorry for the long post. Hope someone can help before I pull what
> little hair I have left out!
>
> Thanks, Lewey
>
>

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