$ apt-get install openvpn

$ cd /etc/openvpn/

$ openvpn --genkey --secret /etc/openvpn/openvpn-key

$ touch /etc/openvpn/server.conf

$ nano /etc/openvpn/server.conf

port 1194
proto udp
dev tun
secret openvpn-key
ifconfig 10.8.3.1 10.8.3.2
keepalive 10 120
comp-lzo
persist-key
persist-tun
status /var/log/openvpn.log
verb 3

$ iptables -t nat -A POSTROUTING -s 10.8.3.0/24 -o eth0 -j MASQUERADE

$ service openvpn restart

$ touch client.ovpn

$ nano client.ovpn

dev tun
proto udp
remote YOUR_SERVER_IP 1194

resolv-retry infinite
nobind
ifconfig 10.8.3.2 10.8.3.1
comp-lzo
verb 3
dhcp-option DNS 8.8.8.8
dhcp-option DNS 8.8.4.4
redirect-gateway def1
<secret>

** توضیح را بخوانید **

</secret>