Not long ago, Microsoft released its own version of Linux in the form of Azure Sphere OS. And in the latest development, the company has decided to pass its Windows Defender Firewall to the Subsystem for Linux (WSL). In other words, Windows Defender Firewall now supports WSL!
The company made the announcement in the release notes for Windows 10 Insider Preview Build 17650 for Skip Ahead.
Microsoft has released Windows 10 Insider Preview Build 17650 (RS5), the version of Windows 10 that will be available later this year following the release of the Spring Edition of RS4. This release is for Windows Insiders who have chosen the skip option.
With the recent Fluent Design update to the Windows shell and core apps, Microsoft is applying the scheme to the Windows Defender Security Center app in the new Windows 10. Windows Defender Firewall now also supports Windows Subsystem for Linux (WSL) processes.
Users can add firewall rules for WSL processes, and the entire process is similar to adding rules for any common Windows process. Additionally, users are allowed to take advantage of WSL's firewall notifications. When a Linux tool tries to allow access to a port from SSH or the web, Defender's firewall will grant you access.
Among other security-related changes, Build 17650 also brings Fluent Design elements to Windows Defender. Now make interval and padding changes to the application as needed. The title bar of the application also changes color.