Little Snitch might be a bit more popular than ufw. We know about 5 links to it since March 2021 and only 4 links to ufw. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
You may already know this, but gufw is simply a graphical front-end to the Uncomplicated Firewall (ufw) service. Fedora uses the Firewalld back-end service instead of ufw. I believe you would need to replace Firewalld with ufw entirely in order to make gufw a plausible solution. Source: about 1 year ago
I just started using ufw https://launchpad.net/ufw and I found that it only shows --help for the root command. Source: over 2 years ago
Why do you think Gufw is proprietary? It's FOSS, licensed as GPL v3, as documented here. Source: almost 3 years ago
Another option is to use UFW and rate limit incoming packets. Because it's a firewall, it will block the queries even before they hit Pi-hole, but it might be a tad more tricky to set up. I also don't know if you can set it as a limitation per client or only in general (per port/rule). I'll leave that for you to investigate further. Source: almost 3 years ago
The first two can be handled by firewall. Little Snitch for example: https://obdev.at/products/littlesnitch/index.html. Source: about 1 year ago
If you want more control over outgoing traffic, there’s commercial stuff like Little Snitch or the similar free tool LuLu from Objective-See. Source: over 1 year ago
Objective Development's Little Snitch. It's been the first piece of software I've installed on every Mac I've owned in the last 20 years. Source: over 2 years ago
Little Snitch? https://obdev.at/products/littlesnitch/index.html. Source: over 2 years ago
If you want to block it at the network/DNS level you could edit the hosts file or use something like Little Snitch to monitor (and block) outgoing connections. Source: almost 3 years ago
TinyWall - Lightweight and non-intrusive firewall
Windows 10 Firewall Control - Windows 10 Firewall Control: simple and exhaustive solution for applications network activity controlling and monitoring.
GlassWire - Visualize network activity in detail, get notified when new apps access the network, look out for...
Emsisoft Online Armor Firewall - Emsisoft Online Armor Firewall is a freemium online firewall protection system by the Emsisoft that is based on the own independent protection technology of the Emsisoft.
Windows Firewall Control - Windows Firewall Control is not the built in firewall system in the Windows operating systems.
Gufw - Gufw is an easy, intuitive way to manage your Linux firewall.