Find the HOWTO or step-by-step guide that you need right here.
As a Linux user, you can opt either to allow or restrict network access to some services or IP addresses using the firewalld firewall which is native to CentOS/RHEL 8 and most RHEL based distributions such as Fedora. Learn how to do this in a helpful tutorial.
Capturing network traffic packets provides insight into what's happening on your network - but you don't want just anyone to do it. Learn how to safely capture packets in this article.
OpenVPN is an open-source application that allows you to create a secure private network over the public internet. OpenVPN implements a virtual private network (VPN) to create a secure connection. OpenVPN uses the OpenSSL library to provide the encryption and it provides several authentication mechanisms, such as certificate-based, pre-shared keys, and username/password authentication. Learn how to install OpenVPN with Easy-RSA 3 on CentOS 8:
