CentOS 7 Set Up OpenVPN Server In 5 Minutes

To set up an OpenVPN server on CentOS 7 in 5 minutes, you will need to follow these steps:

1. Install the OpenVPN package:

sudo yum install openvpn

2. Copy the example configuration files:

sudo cp /usr/share/doc/openvpn-*/sample/sample-config-files/server.conf /etc/openvpn/

3. Edit the configuration file to specify the IP address and port for the server:

sudo vi /etc/openvpn/server.conf

Find the line that says local [IP_ADDRESS] and replace [IP_ADDRESS] with the IP address of your server. Find the line that says port [PORT] and replace [PORT] with the port you want to use for the OpenVPN server.

4. Generate the necessary cryptographic keys:

cd /etc/openvpn
sudo openssl dhparam -out dh2048.pem 2048

5. Enable IP forwarding:

sudo vi /etc/sysctl.conf

Find the line that says # net.ipv4.ip_forward = 1 and remove the # to uncomment the line. Save and exit the file.

sudo sysctl -p

6. Enable the OpenVPN service to start at boot:

sudo systemctl enable openvpn@server

7. Start the OpenVPN service:

sudo systemctl start openvpn@server

After completing these steps, the OpenVPN server should be set up and running on your CentOS 7 system. You can then use an OpenVPN client to connect to the server and access your network.

For more information on setting up an OpenVPN server on CentOS 7, you can consult the OpenVPN documentation or seek guidance from the OpenVPN community.