Re: [squid-users] Re: transparent proxy on remote box issue

From: Eliezer Croitoru <eliezer_at_ngtech.co.il>
Date: Tue, 29 Oct 2013 23:41:36 +0200

On 10/29/2013 06:30 PM, WorkingMan wrote:
> The short answer is I need a transparent proxy (url rewrite and traffic
> inspection) behind VPN (going for the security not for speed; cache will not
> be used; proxy only).
This is maybe squid area
>
> Amazon VPC - 10.0.0.0/16 (subnet goes under that CIDR)
> VPN client - ex: iphone (10.100.0.0/16 virtual pool)
> vpn - 10.0.1.2
> squid - 10.0.1.3 (in practice it would go under 10.0.2.0/24 and use NAT to
> go to WAN but for making this simpler I use the same subnet)

>
> I am not very good with linux networking so I think most of the issue is
> with networking and routing.
Not related to squid but a tiny leap to help with can happen.
>
> My first attempt using VPC with this setup ended up with VPN client not able
> to access anywhere. I suspect routing was not correct because I can see DNS
> request and answer and some traffic going to the web site but there is no
> response coming back to the client.
Masquarade is what you are looking for.(iptables and MASQUARDE)

>
> I am using (similar steps in both guides):
> http://www.tldp.org/HOWTO/TransparentProxy-6.html
> http://lartc.org/howto/lartc.cookbook.squid.html
>
> I am in the process of re configuring from scratch. If you have sure way of
> making this work let me know. basically VPN setup is not an issue but
> routing traffic to remote SQUID server and back is something that I am not
> able to do successfully.
Depends on the VPN client..
What VPN client have you used until now?

Eliezer
Received on Tue Oct 29 2013 - 21:42:00 MDT

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