Security

In this tutorial, you will learn how to set up OpenVPN on a CentOS 7 server and how to connect to OpenVPN from a client machine. Establish a secure connection to a company network, bypass geo-restrictions, and allow you to surf the web using public Wi-Fi networks while keeping your data private with OpenVPN.

DNS management is a significant hurdle in enterprise environments. DNS infrastructure needs to be organized properly to avoid security and performance issues. By following DNS best practices, most potential problems can be evaded.

This tutorial explains how to check the SELinux status and disable the service on CentOS and Rocky Linux..

firewalld is the default firewall tool on CentOS and Rocky Linux servers. This tutorial shows you how to disable and stop the firewalld service.

This phoenixNAP guide instructs how to enable and start firewalld on CentOS or Rocky Linux. It explains basic firewall zone concepts and teaches you how to work with default firewalld zones.

This article explains how to generate a key pair and use them to connect to a remote server via SSH.

In this tutorial, find out How To Use SSH to Connect to a Remote Server in Linux, Mac, or Windows.

Legacy application migration is often a necessary and difficult process. This guide takes you through the benefits, challenges, and best practices when moving legacy applications to a new and modern system.

For Linux users, the best practice of accessing and managing your server remotely is through Secure Shell (SSH). This tutorial shows how to enable, install and configure SSH on Ubuntu.

The chown command changes user ownership of a file, directory, or link in Linux. This tutorial shows how to execute the Linux chown command to control who can modify file contents.