May 9, 2025
Tutorials

How to Install and Configure Iptables on Debian 12

Linux system iptables is an advanced utility firewall that helps a system admin to set up and control the rules of traffic over the network. Even though newer Linux distributions have replaced iptables with nftables, iptables are still popular because of their extensive documentation, administrator familiarity, and overall maturity. This tutorial aims to show the

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Tutorials

How to Open and Close Ports on CentOS 9

On CentOS 9, opening and closing ports are important for managing network access. Opening specific or required ports allows only authorized services to access your network. On the other hand, closing unwanted and unnecessary ports helps prevent cyber attacks and enhances system security. Through this guided article, you will explore different methods of how to

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Security

How to List and Delete Iptables and Firewall Rules

Iptables, in Linux-based systems, are used for managing network traffic. These are the rules that control outgoing and incoming traffic, ensuring network security.  You can keep networks safe by allowing only authorized traffic by inspecting them through the listing. Additionally, you can delete unwanted IPTables and firewall rules from your Ubuntu system. This post aims

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