Firewall configuration Articles, Guides & Tutorials
What are the key network protocols used in 2026 and how are they categorized across OSI layers?
Network protocols are essential for managing communication between devices in any IT infrastructure. This guide explains the most important network protocols categorized by OSI model layers: Application, Transport, Ne...
Windows Firewall Guide: Configure Inbound and Outbound Rules and Test Them in Real Time
Windows Firewall is an important security feature that controls network traffic using Inbound and Outbound rules. This guide covers how to configure firewall rules, block or allow network traffic, and verify whether t...
Advanced Linux Firewall Security | Configuring iptables and firewalld for Maximum Protection
Linux firewalls protect servers and networks from cyber threats. Two of the most widely used firewall management tools in Linux are iptables and firewalld. While iptables provides advanced, rule-based filtering, firew...
How to Secure Kali Linux: Hardening Steps and Protecting Client Data
Securing a Kali Linux server is critical to preventing unauthorized access and ensuring the safety of sensitive data. Essential security measures include regular system updates, configuring a strong firewall, disablin...
How Can You Secure a Linux Server? The Complete Guide
Securing a Linux server involves multiple layers of protection, from regular updates and firewalls to disabling root access and using SSH key-based authentication. Additional steps include implementing intrusion detec...
![[2026] Linux System Admin Interview Questions on Security Practices](https://www.webasha.com/blog/uploads/images/202408/image_750x415_66cedcd26326b.webp)
[2026] Linux System Admin Interview Questions on Security Practices
Prepare for your Linux system admin interview with our guide on security practices. Explore key interview questions covering essential topics such as firewall configuration, SSH security, SELinux, and more. Enhance yo...
