If you value your privacy and want to keep an eye on your network activity, it's always a good idea to have a firewall up and running on your PC. You will need to go into the aforementioned XML files and manually do everything there. One thing that it does not provide, however, is a simple way to add or change rules. It also logs all monitored activity that you can open or export for your reference. Simplewall features a blocklist that is based on XML files that it comes with.

You can also opt to create a blacklist instead. The default mode blocks everything, and you whitelist certain apps as exceptions. It lets you decide how you want to use it. Instead, it's meant to work in tandem with Windows' own firewall control features. Unlike other standalone firewall tools that provide extensive feature sets and options, this program doesn’t really work on its own.

This is why various programs have been developed to help simplify the process a bit, and simplewall is one such solution. Setting up a proper firewall can be a bit tricky and involves some trial and error. It does so using a set of predefined rules for various programs.

A firewall is a network security system that you can use to monitor and control incoming and outgoing network traffic.

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