![]() ![]() ![]() ![]() This means that anyone trying to access your server will not be able to connect unless you specifically open the port, while all applications and services running on your server will be able to access the outside world. If UFW is activated, the output will look similar to the following:īy default, UFW will block all of the incoming connections and allow all outbound connections. If you never activated UFW before, the output will look like this: Status: inactive Once the installation is completed you can check the status of UFW with the following command: sudo ufw status verbose Uncomplicated Firewall should be installed by default in Ubuntu 18.04, but if it is not installed on your system, you can install the package by typing: sudo apt install ufw Check UFW Status # If you don’t have a sudo user on your Ubuntu system you can create one by following these instructions The best practice is to run administrative commands as a sudo user instead of root. Prerequisites #īefore you start with this tutorial, make sure you are logged into your server with a user account with sudo privileges or with the root user. UFW is a user-friendly front-end for managing iptables firewall rules and its main goal is to make managing iptables easier or as the name says uncomplicated. By default, Ubuntu comes with a firewall configuration tool called UFW (Uncomplicated Firewall). A properly configured firewall is one of the most important aspects of overall system security. ![]()
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