![]() Moreover, you can check the status by running the “ sudo ufw status” command, it will display “inactive”. To disable UFW, you can run the following command. To have a clear look at all your rules and their respective status, use the “ sudo ufw status” command. Right after running this command, a line will pop-up which states “ Command may disrupt existing ssh connections. Note: But before proceeding, make sure that your SSH port is allowed to receive connections from your IP address. Since it is disabled by default, you need to enable the firewall by running the below-mentioned command on your terminal: Sudo ufw allow from (IP address) to any port (port number) To allow certain IP addresses only to access your restricted ports, you can use the following command: It is highly suggested to restrict the access to your SSH port (its port is 22 by default) from anywhere except your trusted IP addresses. However, if you want to deny access to any particular port, you can take the advantage of the following command: And for this, you have to make the TCP port open through the following command: If you have a web server, you would want everyone to access your website. Typically, UFW comes pre-installed in Ubuntu but if somehow you ever need to install it by yourself, you can run the following command as a sudo user. ![]() Step-By-Step to Configure Uncomplicated Firewall on Ubuntu 14.04 Let’s dive into the guide to learn how to configure an Uncomplicated Firewall on Ubuntu 14.04 and filter your incoming and outgoing traffic along with boosting the security. It was first introduced in Ubuntu 8.04 LTS and comes in-built in all Ubuntu installations after 8.04 LTS by default. However, it doesn’t offer all the flexibility and power of iptables commands, but it’s, nonetheless, less complex to run. The Uncomplicated Fire Wall has an easy-to-use frontend for the standard Linux iptables commands through which you can perform basic firewall tasks without learning iptables. ![]() Beginners can use UFW via the GUI (Graphic User Interface) tool Gufw, a graphical front-end for UFW. It is developed to provide a user-friendly way to create an IPv4 or IPv6 host-based firewall. Ubuntu comes with its firewall labelled UFW. This blog details a step-by-step guide to configure The Uncomplicated Firewall on Ubuntu 14.04 along with all the necessary information needed to make the most out of UFW, which we are going to discuss next. It is the default firewall configuration tool for Ubuntu, which is disabled until you configure and execute it. The Uncomplicated Firewall (UFW) is the outcome. As a result, a lot of work has been done over the years to build the frontends for iptables to achieve a better firewall. ![]() However, getting proficient in iptables and getting started with Netfilter firewalling is a daunting task. The iptables serve as a firewall solution that can be configured and customized as per the need. When it comes to Ubuntu, a packet filtering system called Netfilter, and a traditional interface for its manipulation called iptables are provided. One of the evergreen ways to accomplish the same is by employing firewalls. With the rising adaptation of digitalization by the business world, it becomes obvious for online businesses to focus on securing their systems from external threats. List of content you will read in this article:
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