разрешения для openvpn
iptables -I FORWARD -i tun0 -o eth0 -s 10.8.0.0/24 -m conntrack —ctstate NEW -j ACCEPT
iptables -I FORWARD -m conntrack —ctstate RELATED,ESTABLISHED -j ACCEPT
iptables -t nat -I POSTROUTING -o eth0 -s 10.8.0.0/24 -j MASQUERADE