Proxy Tunnelling, How?
Hey guys, I hope you can help me with my technical problem.
Long story short - I have a server A in other country with spare IPs I use as proxies (i have squid installed and running just fine)
In my offices all PCs connect to a private VPN hosted on other my server B, so we all are on same network. I want each PC to use its own proxy IP from server A, but i don't want in each PC to enter the exact proxy IP, I want to enter for example: 192.168.0.1:8080 as proxy on all PCs, it is easy to remember and setup 
At the server B with IP 192.168.0.1 I will control which PC to which proxy IP from server A will be redirected based on its local ip network.
How can i do that? Is there any such proxy tunnelling software? Or I need to use iptables?
Any help will be highly appreciated
Comments
Its late, not fully sure I understand how you want it but surely a GRE Tunnel from server A to route to server B would do the job?
Use iptables mark function
Use iptables -j DNAT. Or, even better, use Proxy Auto Configuration (PAC) file.