RE: [squid-users] Problem logging in to webmail site

From: Sturgis, Grant <Grant.Sturgis@dont-contact.us>
Date: Wed, 14 Sep 2005 11:30:17 -0600

> -----Original Message-----
> From: Listserv [mailto:SALISTSERV@adphila.org]
> Sent: Wednesday, September 14, 2005 11:27 AM
> To: Sturgis, Grant
> Subject: RE: [squid-users] Problem logging in to webmail site
>
>
> Using WCCP... applicable router config lines:
>
> ip wccp version 1
> ip wccp web-cache redirect-list 199
>
> access-list 199 permit tcp any any eq www
> access-list 199 permit tcp any any eq 8080
>
> interface FastEthernet3/1
> description connected to EthernetLAN_2
> ip wccp web-cache redirect out
>
> So it seems like maybe SSL/HTTPS traffic isn't being
> forwarded to the squid at all?

That is good. Check your firewall logs for traffic from the client and
/ or to the web server in question. Look for dport 443 to see if that
traffic is going out the firewall (i.e. not going thru Squid).

>
> Sean
>
>
> >>>"Sturgis, Grant" <Grant.Sturgis@arraybiopharma.com> 09/14 12:58 pm
> >>>
> Let's see what the list says (I have known to be wrong ;-)
>
> If I am correct, then you cannot intercept SSL requests and
> send them to
>
> your proxy. This technique would be essentially a man-in-the-middle
> attack on an SSL connection.
>
> So, how are you doing transparent proxying / interception? Are you
> using WCCP or policy based routing?
>
>
>
>
> >-----Original Message-----
> >From: Listserv [mailto:SALISTSERV@adphila.org]
> >Sent: Wednesday, September 14, 2005 10:52 AM
> >To: Sturgis, Grant
> >Subject: RE: [squid-users] Problem logging in to webmail site
> >
> >
> >>>>"Sturgis, Grant" <Grant.Sturgis@arraybiopharma.com> 09/14 12:38 pm
> >>>>
> >
> >
> >>-----Original Message-----
> >>From: Listserv [mailto:SALISTSERV@adphila.org]
> >>Sent: Wednesday, September 14, 2005 10:31 AM
> >>To: squid-users@squid-cache.org
> >>Subject: [squid-users] Problem logging in to webmail site
> >>
> >>
> >>Hi... I'm fairly new to all this. Inherited a set of squids
> >>running transparently for web caching. Everything runs fine,
> >>mostly... recently noticed that when I attempt to connect to
> >>a certain webmail site, the login box for the site does not
> >>pop up... the browser just tries to connect, and connect, and
> >>connect. So I set the domain to always connect. This seems
> >>to work when I'm connected directly to one of the caching
> >>servers, but not when I'm just using the proxy transparently.
> >>Any suggestions?
> >>
> >>This is similar to a login problem that I never got any
> >>response on a month or so ago, so any help anyone may have
> >>would be greatly appreciated. Thanks!
> >>
> >>Sean Albright
> >
> >My guess would be that the login box (frame) is https. Since
> >you cannot
> >
> >transaprently proxy https, the requests are getting lost. You should
> >send https requests out directly (not through the proxy).
> >
> >>
> >
> >Thanks for the quick response. It's possible that I'm
> >already configured to do that... the conf contains the following:
> >
> >acl SSL_ports port 443 563
> ><snip>
> >http_access deny CONNECT !SSL_ports
> >
> >Is that what you're talking about?
> >
> >If that's doing something else, how can I send out the
> >requests directly... Would I do that something like this:
> >
> >acl FOO https
> >nocache deny FOO
> >
> >
> >Sean
> >
> >
>
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Received on Wed Sep 14 2005 - 11:31:19 MDT

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