Proxy setup with Open vpn tunnel?

Question

VPN

Good afternoon.
there is a server with a configured squid proxy through which we go to the Internet, it also has vpn configured to another server.
need help with iptables rules to route proxy traffic through this vpn
using openvpn
client -> proxy server and vpn client -> vpn server -> internet

Answer 1

On proxy:
Set default via openvpn.
iptabes -t nat -I POSTROUTING -s -o tun0 -j SNAT --to-source
On the server, also set up an OpenVPN network.