How to Setup and Configure an OpenVPN Server on CentOS 6

How to Setup and Configure an OpenVPN Server on CentOS 6

How to Setup and Configure an OpenVPN Server on CentOS 6

If you want to set up an OpenVPN server on CentOS 6, then you've come to the right place. This tutorial will guide you through the steps required to get your server up and running.

Step 1: Install OpenVPN

The first step is to install OpenVPN on your CentOS 6 server. You can do this by running the following command:

yum install openvpn

Step 2: Generate Certificates and Keys

Next, you need to generate the necessary certificates and keys for OpenVPN. This can be done using the easy-rsa package, which is included with OpenVPN. To get started, navigate to the easy-rsa directory:

cd /usr/share/openvpn/easy-rsa/2.0/

Then, initialize the PKI (Public Key Infrastructure) by running the following command:

./clean-all

Now, create a new CA (Certificate Authority) by running the following command:

./build-ca

Follow the prompts and enter the required information.

Next, create a server certificate and key by running the following command:

./build-key-server server

Again, follow the prompts and enter the required information.

Step 3: Configure OpenVPN

Now that you have generated the necessary certificates and keys, it's time to configure OpenVPN. The main configuration file for OpenVPN is located at /etc/openvpn/server.conf. Open this file in your favorite text editor.

Uncomment the following lines:

	dev tun
	topology subnet
	server 10.8.0.0 255.255.255.0
	push "redirect-gateway def1 bypass-dhcp"
	push "dhcp-option DNS 8.8.8.8"
	push "dhcp-option DNS 8.8.4.4"

Change the following line:

ca /etc/openvpn/easy-rsa/2.0/keys/ca.crt

To:

ca /etc/openvpn/easy-rsa/2.0/keys/ca.crt

Save and close the file.

Step 4: Start OpenVPN

Now that OpenVPN is installed and configured, it's time to start the service. You can do this by running the following command:

service openvpn start

To make sure that OpenVPN starts automatically when the server boots up, run the following command:

chkconfig openvpn on

Step 5: Test OpenVPN

Finally, it's time to test your OpenVPN server. You can do this by connecting to the server using an OpenVPN client. You can download the OpenVPN client from the OpenVPN website.

Once you have downloaded and installed the client, open it and connect to your

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