Re: [squid-users] question about Forcing proxy.

Hi,

For those who need a step-by-step tutorial in configuring transparent
proxy, read this:

http://www.sublime.com.au/squid-wccp/

Regards
Mun Fai

Wei Ming Long wrote:

>Hi Jason,
>Did you enable ip_forwarding in your linux kernel.
>check by "cat /etc/sys/net/ipv4/ip_forward", if it's 0, then echo "1" >>
>/etc/sys/net/ipv4/ip_forwarding.
>
>Do read the doc on transparent proxy.
>
>Cheers
>Matthew
>
>
>
>>>>"Jason Brashear" <jason@hostrocks.com> 07/02/03 10:16AM >>>
>>>>
>>>>
>One more thing to add..
>
>Also when I ad this line
>to my firewall rules:
>$IPTABLES -t nat -A PREROUTING -i eth1 -p tcp --dport 80 -j
>REDIRECT --to-port 3128
>
>
>I get this in my web browser:
>
>ERROR
>The requested URL could not be retrieved
>
>----------------------------------------------------------------------------
>----
>
>While trying to retrieve the URL: /
>
>The following error was encountered:
>
>Invalid URL
>Some aspect of the requested URL is incorrect. Possible problems:
>
>Missing or incorrect access protocol (should be `http://'' or similar)
>Missing hostname
>Illegal double-escape in the URL-Path
>Illegal character in hostname; underscores are not allowed
>Your cache administrator is jason@patriotconnect.com.
>
>
>
>----------------------------------------------------------------------------
>----
>
>Generated Wed, 02 Jul 2003 02:13:53 GMT by firewall.hostrocks.com
>(squid/2.5.STABLE1)
>
>
>I have a system running SQUID with two nics.
>One Public and one private.
>The private issues a Dynamic IP address to the clients on the inside via
>DHCP.
>
>
>What I want to do is force all port 80 443 in bound traffic to squid so
>that
>proxy occurs with out having to add a proxy server setting their browser.
>
>
>Any ideas?
>
>I know that I should be able to do this with IPTABLES.
>I am running on RedHat 9.0 Also I hav esquid Guard installed and that seems
>to really rock.
>
>Please help!
>Thank you,
>-Jason Brashear
>
>
>