UniFi 9.5.21: Default Security Posture Explained + Demo

by https://www.unihosted.com/. Curious about the new Default Security Posture in UniFi Network 9.5.21?

🔒 In this video, Fernando from UniHosted explains how this powerful new feature changes the way UniFi gateways handle security between VLANs, zones, and Ethernet ports — giving you a stronger baseline for your network.

You’ll see how the new “Block All” default mode works, how to customize rules, and how to safely allow specific traffic (like SMB or HTTP) between isolated VLANs. If you manage multiple networks or UniFi gateways, this is an essential update to understand.

🔹 What you’ll learn:
✅ What the Default Security Posture feature does
✅ How to enable and customize it on UniFi 9.5.21
✅ The difference between “Allow All” and “Block All” modes
✅ How VLAN isolation works automatically
✅ How to allow specific traffic between VLANs (SMB, HTTP, etc.)
✅ How the feature affects Ethernet port profiles
✅ Best practices for managing firewall rules and zones

📌 Chapters:
00:00 – Intro: What Is the Default Security Posture?
00:40 – Enabling the Feature in UniFi Network 9.5.21
02:00 – How It Affects VLANs & Port Profiles
03:30 – Isolated Networks and Firewall Policies
07:00 – Testing Inter-VLAN Isolation
09:30 – Allowing SMB Traffic Between VLANs
12:00 – Allowing HTTP Traffic Between VLANs
13:40 – Best Practices & Final Thoughts

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💬 Got questions or testing results to share? Drop a comment below!
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Видео UniFi 9.5.21: Default Security Posture Explained + Demo канала UniHosted