OpenVPN

OpenVPN Docker image.

What is this

Docker image containing working OpenVPN VPN server using key authentication.

Howto

1. edit /etc/sysctl.conf:

   net.ipv4.ip_forward = 1

2. refresh sysctl

   sysctl -p

3. if you want to access Internet via this VPN, run

   iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE

   otherwise, remove push "redirect-gateway def1" from server.conf

4. docker create --name copenvpn --restart always --privileged --net=host -v /lib/modules:/lib/modules -v /data/openvpn:/data scf37/openvpn

5. container will automaticall generate client config file at /data/openvpn/client.conf. Do not forget to put correct IP and optionally port in there before use.

Advanced topics

Configuration

Container will copy default configuration to /data/conf NOT overwriting existing files. So feel free to modify configs at /data/openvpn/conf on host as you wish. Additional container command line parameters will be passed to openvpn binary.

Limitations

Not as widespread as L2TP. For example, most home routers do not have OpenVPN client.