Computer Networks 101 by Karthikeyan Nagaraj
Network Address Translation (NAT) and Port Forwarding in Linux
A Deep Dive into NAT and Port Forwarding: How Linux Manages Traffic Between Networks
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In modern networking, Network Address Translation (NAT) and Port Forwarding are essential techniques for managing traffic between private networks and the internet. NAT allows multiple devices on a local network to share a single public IP address, while port forwarding enables specific services within the private network to be accessible from the outside world. Together, they provide flexibility, security, and efficiency in managing network traffic.
In this article, I’ll explain what NAT and port forwarding are, how they work, and how to configure them in Linux using Iptables, the most commonly used tool for managing firewall and networking rules.
