Portmaster is a free open source firewall for Windows and of all the firewalls I've tested for Windows, this is the cream of the crop. This guide explains how to set it up and use it.

Timestamps:

00:00 Network activity screen
02:02 Apps settings
02:43 Securing Privacy Network (SPN).
04:20 Encrypted DNS
05:28 Problems loading websites (️IMPORTANT️)
06:38 DNS options
10:00 Filter lists
10:43 Problems loading websites (continued – Filtering list blocks)
11:24 Portmaster vs. other firewalls
12:35 Out

Article on testing DNS filters:

https://techblog.nexxwave.be/public-dns-malware-filters-tested/

Portmaster Firewall:

https://safing.io/
https://github.com/safing/portmaster

Background songs:

Floof – Jobii
Smithereens-Jobii
Laundry list – Dylan Sitts
Cold Leftovers – Dylan Sitts

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