OpenVPN on a server

This article shows how to install OpenVPN on a server.

Install OpenVPN server

wget https://git.io/vpn -O openvpn-install.sh && bash openvpn-install.sh

After running this command, we can get a .OVPN file. Add this file to OpenVPN Connect App. You can run this line again to remove and add users or uninstall this OpenVPN server.

https://github.com/Nyr/openvpn-install

tips for OpenVPN server

If having the port problem, try to change the iptable rules with sudo iptables -I INPUT 6 -m state --state NEW -p tcp --dport 1194 -j ACCEPT.

tips for connecting OpenVPN server

Linux client

Install client:
```
sudo apt install openvpn
```
copy ovpn files to the linux client.
connect to OpenVPN server.
```
sudo openvpn --config xxx.ovpn
```
If you SSH to the linux client, the SSH connection will be closed. You should change the route of the linux server.

# Find the IP address of your local machine on the Linux server. The peer address is your IP.
sudo ss -Hnt sport = :22

# Find the nexthop of your route.
ip route show default

# Add route for linux server
sudo ip route add {your_local_ip}/32 via {nexthop_ip} dev eth0

# Del route
sudo ip route del {your_local_ip}/32