Installing and configuring OpenVPN on a server running CentOS 7

This guide will describe the process of installing and configuring the Open VPN tool on a virtual server running CentOS 7.

Open VPN is an open source software product for creating virtual private networks and connecting to them via open Internet channels.

Creating a sub-interface in CentOS (adding a second IP to interface)

Viewing interfaces

Creating a sub-interface in FreeBSD (adding a second IP to interface)

Configuring interface

Configuring FreeBSD network interface

View interfaces

This manual explains how to configure one of interfaces.

Configuring a second network Interface on Windows Server 2008 

Network Management Center

Creating a sub-interface in Windows Server 2012 and 2016

In this manual, we discuss how to add a second IP address to the network interface (create a sub-interface).

Viewing network load on Linux server

Installing Nload

The overall speed of the network interface can be viewed using the command nload. If it is not available, it may be installed:

Configuring CentOS 6/7 Network Interface

This manual will explain how to configure network interface.

View interfaces

Enter the command that will list all interfaces of the server