How to Configure a Firewall with UFW on Ubuntu 18.04

In this article, we will show you how to install and configure UFW on an Ubuntu 18.04 VPS. First, we will take a moment to introduce and explain what firewalls are, and then we’ll show you how to use UFW and how to make the appropriate UFW configuration.

Source: LXer – How to Configure a Firewall with UFW on Ubuntu 18.04

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