Linux Tutorials
As a network administrator, scanning for security vulnerabilities and patching them as soon as possible is important. Metasploit is an open-source framework that helps identify threats and vulnerabilities. In this tutorial, you will learn how to install the Metasploit framework and do basic testing on a Ubuntu 22.04 system.
CSF or Config Server Firewall is a Stateful Packet Inspection (SPI) firewall based on IPtables and Perl. it provides a daemon process that will monitor your services for failure authentication.
In this tutorial, you will learn how to set up an IKEv2 IPSec VPN using strongSwan using EAP-MSCHAPv2 authentication along with Let’s Encrypt SSL certificates on a Rocky Linux 9 server. You will also learn how to connect to the VPN using Windows, macOS, Linux, and Android clients.
Zeek is a free, open-source, and worlds leading security monitoring tool used as a network intrusion detection system and network traffic analyzer. This post will show you how to install the Zeek network security tool on Ubuntu 22.04.
Nessus is an open-source network vulnerability scanner for vulnerability assessments, penetration testing, and ethical hacking. It uses the Common Vulnerabilities and Exposures (CVE) architecture and is one of the most comprehensive vulnerability scanners on the market. This guide describes how to install Nessus Security Scanner on the Rocky Linux server. Also, this will helps you to set up the Nessus CLI that allows you to manage Nessus via the terminal command line. And lastly, this also describes how to scan the server with Nessus.
Suricata is a free and open-source network analysis and threat detection software developed by OSIF. It can be used as an intrusion detection system (IDS) and an intrusion prevention system (IPS).
ModSecurity is a free and open-source Web Application Firewall (WAF) that protects your website from several types of attacks, including cross-site scripting (XSS), SQL injection, session hijacking, and many more. In this tutorial, we will show you how to install ModSecurity with Nginx on Ubuntu 22.04.
OPNSense is a free and open-source firewall router based on FreeBSD. This tutorial will show you how to install and configure the OPNSense Router Firewall on VirtualBox. With this guide, you can learn how to set up the OPNSense Router Firewall locally before implementing in the real world.
Fail2ban is a free and open-source Intrusion Prevention System written in Python. It is used to protect your system against brute-force attacks. In this tutorial, I will show you how to install Fail2Ban firewall on Alma Linux 8.
In this guide, I will show you how to analyze network Packets on Linux. I will use the Tools Tcpdump and Wireshark. This tutorial uses Ubuntu as OS, but it is applicable to other Linux distributions too.