Unlock the Power of Nftables: Mastering Destination Network Address Translation (DNAT)

Are you ready to elevate your networking skills to the next level? Join us in this in-depth tutorial where we delve into the intricacies of Destination Network Address Translation (DNAT) in Nftables.

🔍 What You'll Learn:

🌐 Understanding DNAT: Uncover the fundamentals of Destination Network Address Translation and its role in reshaping network traffic.
🎯 Destination NAT: Dive into the concept of Destination NAT and grasp how it plays a pivotal role in altering destination IP addresses.
💡 Exposing Services: Learn the art of exposing services securely through DNAT, ensuring seamless communication across your network.
📂 Organizing DNAT into Chains: Master the art of organizing DNAT rules into chains, streamlining your configurations for optimal performance.
🖥️ Who Should Watch:

Network Administrators
System Architects
Networking Enthusiasts
IT Professionals
🔧 Prerequisites:
Basic understanding of networking concepts and familiarity with Nftables.

🎓 Stay Connected:
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🚀 Ready to elevate your networking game? Hit play now and embark on the journey to Mastering DNAT with Nftables! 🌐

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00:00 Introduction
00:49 What DNAT is
01:54 Redirect
05:18 Regular DNAT
06:24 DNAT to localhost
08:17 DNAT outgoing traffic
09:05 Exposing services (port forwarding)
14:20 Using MAPS in DNAT
17:27 Organize DNAT rules into CHAINS

[dpi]

your diagrams do help a lot!

i think your .conf for firewall at 13:15 was pretty misleading for a beginner like me, in order for the firewall to act as a router, we need to first to the DNAT and then do SNAT as well. you didn't show us the SNAT part but still somehow your conf worked.

for me (and hopefully everyone else) only this is working for obvious reasons:

flush ruleset

table ip nat {
chain prerouting {
type nat hook prerouting priority -100; policy accept;
iifname "eth0" tcp dport 80 dnat to 192.168.1.80:8080
}

chain postrouting {
type nat hook postrouting priority 100; policy accept;
oifname "eth0" masquerade
}
}