The firewall is a vital component of any Linux distribution. This is even more important when running a server versus a desktop distro. Firewalls are necessary since they protect a computer system or a network of computers from an external attack especially in a server environment where the server is connected to the Internet in an always-on Internet connection.
You may wish to join this site if you are interested in learning more about the Linux operating system and open source software. You will see command-line instructions that you can run from the Terminal that will assist you in working with Linux. Additionally, various open source packages will be presented here that will help you in your daily work flow. Some content is reserved for subscribers. If you would like to become a subscriber, please visit the Contact Us page and use the email contact link to send me your name and email address. I'll email you with a temporary password and you can change it after logging in for the first time. Please consider joining as a subscriber.
KMyMoney 5.x is an open source financial management software package for Windows, MacOS, and Linux. It is also available as a source archive. Tour the documentation and watch this video on its usage by Lawrence Technology Systems