Re: [squid-users] RE: Unable to access a website through Suse/Squid.

From: Amos Jeffries <squid3_at_treenet.co.nz>
Date: Fri, 08 Jun 2012 14:40:35 +1200

On 8/06/2012 9:51 a.m., Daniel Niasoff wrote:
> Hi Omid,
>
> I had exactly the same issue and it bothered me for ages. Tried all the steps that you took but to no avail.
>
> Finally I tried upgrading to the latest source code and the problem disappeared.
>
> I'm not very technical but I'm guessing it's related to this bug http://bugs.squid-cache.org/show_bug.cgi?id=3528

That is only related to 3.2. The 3.1 series has no Host: verification
security.

>
> Daniel
>
>
> -----Original Message-----
> From: Omid Kosari
>
> i have checked everything in this thread . also i have done every tips from http://squidproxy.wordpress.com/2007/06/05/thinsg-to-look-at-if-websites-are-hanging/
> http://squidproxy.wordpress.com/2007/06/05/thinsg-to-look-at-if-websites-are-hanging/
> but unfortunately some websites does not open through squid.
>
> note1: web sites will open if i manually set proxy settings in my browser ( port 3128 ) but when route the traffic to squid ( port 3129 tproxy ) they don't open .
>
> note2: squid server can open those websites simply with lynx .

Requests made from the Squid server use the squid server IP as source.
They are useful only in eliminating ECN, PMTU, etc issues. They do not
test any problems with routing of TPROXY packets.

http://wiki.squid-cache.org/Features/Tproxy4 has quite a laundry list of
things to look at and be wary of. The troubleshooting section lists a
few ways packets can get lost or connections "hang". Anything marked
with a yellow asterisk icon, or a red cross icon may also be relevant to
this problem.

>
> note3: i tested with changing mss even below 500 , changing mtu of router interface and squid interface below 1200 , disabling ECN and WSS etc . no success
>
> nothing special in log files even with debug level more than 3 .
>
> ubuntu 12.04 server LTS 64bit . squid Version 3.1.19
>
> most of websites work fine but few of them have problem
>

Which ones exactly? it may be something specifically related to them and
how squid is attempting to connect.

Amos
Received on Fri Jun 08 2012 - 02:40:51 MDT

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