Does Linux Need a Firewall & How To Configure the Linux Firewall with firewall-cmd

3 – 6 min read 60 09/19/2022

Linux is more secure than other operating systems. But that’s not the only reason why you might not need an antivirus or firewall while using Linux.

Linux isn’t invulnerable. In fact, that’s one of the most common cybersecurity myths that gets Linux users into trouble. This belief makes it easy to put your guard down, and when your guard is down, you’re most likely to get sucker punched. But just because Linux has security holes doesn’t mean you need antivirus or firewall software. Your choice of security settings will have been discussed in detail during the installation of your Linux system but you may not remember them by now. In this article, we will talk about configuring the firewall with the firewall-cmd command.

What Is a Firewall?

Firewalls are a key aspect of network security, thus a sysadmin should understand how they function. If you understand firewalls, you can keep your network safe by making informed decisions about which traffic to let in and out. A firewall is simply a filter that determines which network packets can come into your computer from the internet and which can leave your computer to the internet. It’s mainly used to allow and/or disallow incoming connections. Outgoing connections are rarely filtered. In simple words, it is a sort of wall between your computer and the outside world.

Does Linux Need a Firewall?

This is nearly always a question.

Read more

Explore the site

More from the blog

Latest News