• About Us
  • Disclaimers
  • Privacy Policy
  • Sitemap
Linux Tutorials for Beginners
Advertisement
  • Ubuntu
    Install and Secure phpMyAdmin on Ubuntu 22.04

    How To Install and Secure phpMyAdmin on Ubuntu 22.04

    Secure SSH with Fail2Ban

    How To Secure SSH with Fail2Ban on Ubuntu 22.04

    Install Uptime Kuma on Ubuntu 22.04

    How To Install Uptime Kuma on Ubuntu 22.04

    Install Ubuntu Server 22.04

    How To Install Ubuntu Server 22.04 LTS with Screenshots

    Set Up Firewall on Ubuntu 22.04

    How To Set Up a Firewall with UFW on Ubuntu 22.04

    Install Nginx on Ubuntu

    How To Install Nginx on Ubuntu 22.04: A Comprehensive Guide

    Install MySQL 8.0 on Ubuntu 22.04

    How To Install MySQL 8.0 on Ubuntu Server 22.04

    install-php74-ubuntu2204

    How To Install PHP 7.4 on Ubuntu 22.04

    Install Snipe-IT on Ubuntu 22.04

    How To Install Snipe-IT Asset Management on Ubuntu 22.04

  • Debian
    Secure SSH with Fail2Ban

    How To Secure SSH with Fail2Ban on Debian 11

    Install Debian 11 Server

    How To Install Debian 11 (Bullseye) Server with Pictures

    Install and Setup Node.js on Debian 11

    How To Install and Setup Node.js on Debian 11

    Install PHP 8.2 on Debian 11

    How To Install PHP 8.2 on Debian 11

    Install Nginx on Debian 11

    How To Install Nginx on Debian 11: A Comprehensive Guide

    Set Up Firewall with UFW on Debian

    How To Set Up a Firewall with UFW on Debian 11

    install php74 on debian 11

    How To Install PHP 7.4 on Debian 11

    Install MariaDB 10.9 on Debian 11

    How To Install MariaDB 10.9 on Debian 11 Server

    Initial Setup Debian Server

    Initial Setup Debian 11 Server: Secure and Efficient

  • Rocky Linux
    Install phpMyAdmin on Rocky Linux 9

    How To Install phpMyAdmin on Rocky Linux 9

    Secure SSH with Fail2Ban

    How To Secure SSH with Fail2Ban on Rocky Linux 9

    Install Rocky Linux 9.2 Server

    How To Install Rocky Linux 9.2 Server with Screenshots

    setup Firewall Using Firewalld Rocky Linux 9

    How To Set Up a Firewall Using FirewallD on Rocky Linux 9

    Install Nginx on Rocky Linux 9

    How To Install Nginx on Rocky Linux 9: A Comprehensive Guide

    Install Apache on Rocky Linux

    How To Install and Configure Apache on Rocky Linux 9

    Install MongoDB on Rocky Linux 9

    How To Install MongoDB 6.0 on Rocky Linux 9

    Install Docker on Rocky Linux

    How To Install Docker CE on Rocky Linux 9

  • CentOS
    Secure SSH with Fail2Ban

    How To Secure SSH with Fail2Ban on CentOS 7

    Install PHP8.2 on CentOS 7

    How To Install PHP 8.2 on CentOS 7 / RHEL 7

    Install Apache on CentOS 7

    How To Install Apache Web Server on CentOS 7

    Set Up FirewallD on CentOS 7

    How To Set Up a Firewall Using FirewallD on CentOS 7

    Initial Setup CentOS 7 Server

    Initial Setup CentOS 7 Server: Secure and Efficient

    Install Nginx on CentOS 7

    How To Install Nginx on CentOS 7: A Comprehensive Guide

    Build NGINX from Source on Centos 7

    How To Build NGINX from Source (Compile) on Centos7

    Install Docker Swarm on CentOS 7

    Install and Configure Docker Swarm Mode on Centos 7

    Install Docker Compose on Centos 7

    How To Install and Use Docker Compose on Centos 7

  • Linux
    Manage Groups on Linux

    A Simple Guide: How To Manage Groups on Linux

    Logrotate In Linux

    How To Manage Log Files Using Logrotate In Linux

    Check File Size in Linux

    The Easy Ways to Check File Size in Linux

    Linux server security system administrators

    Best Practices Linux Server Security for System Administrator

    Backup Files From Remote Linux VPS Using Rsync Script

    How To Backup Files From Remote Linux VPS Using Rsync Script

    SSH Key-based Authentication

    How To Configure SSH Key-based Authentication In Linux

    Linux File Permissions

    Understanding Linux File Permissions for Beginners

    Create Multiboot USB with Ventoy

    How To Create Multiboot USB with Ventoy in Linux

    Find Hard Disk Drive Information in Linux

    How To Find Hard Disk Drive Information in Linux

No Result
View All Result
Linux Tutorials for Beginners
  • Ubuntu
    Install and Secure phpMyAdmin on Ubuntu 22.04

    How To Install and Secure phpMyAdmin on Ubuntu 22.04

    Secure SSH with Fail2Ban

    How To Secure SSH with Fail2Ban on Ubuntu 22.04

    Install Uptime Kuma on Ubuntu 22.04

    How To Install Uptime Kuma on Ubuntu 22.04

    Install Ubuntu Server 22.04

    How To Install Ubuntu Server 22.04 LTS with Screenshots

    Set Up Firewall on Ubuntu 22.04

    How To Set Up a Firewall with UFW on Ubuntu 22.04

    Install Nginx on Ubuntu

    How To Install Nginx on Ubuntu 22.04: A Comprehensive Guide

    Install MySQL 8.0 on Ubuntu 22.04

    How To Install MySQL 8.0 on Ubuntu Server 22.04

    install-php74-ubuntu2204

    How To Install PHP 7.4 on Ubuntu 22.04

    Install Snipe-IT on Ubuntu 22.04

    How To Install Snipe-IT Asset Management on Ubuntu 22.04

  • Debian
    Secure SSH with Fail2Ban

    How To Secure SSH with Fail2Ban on Debian 11

    Install Debian 11 Server

    How To Install Debian 11 (Bullseye) Server with Pictures

    Install and Setup Node.js on Debian 11

    How To Install and Setup Node.js on Debian 11

    Install PHP 8.2 on Debian 11

    How To Install PHP 8.2 on Debian 11

    Install Nginx on Debian 11

    How To Install Nginx on Debian 11: A Comprehensive Guide

    Set Up Firewall with UFW on Debian

    How To Set Up a Firewall with UFW on Debian 11

    install php74 on debian 11

    How To Install PHP 7.4 on Debian 11

    Install MariaDB 10.9 on Debian 11

    How To Install MariaDB 10.9 on Debian 11 Server

    Initial Setup Debian Server

    Initial Setup Debian 11 Server: Secure and Efficient

  • Rocky Linux
    Install phpMyAdmin on Rocky Linux 9

    How To Install phpMyAdmin on Rocky Linux 9

    Secure SSH with Fail2Ban

    How To Secure SSH with Fail2Ban on Rocky Linux 9

    Install Rocky Linux 9.2 Server

    How To Install Rocky Linux 9.2 Server with Screenshots

    setup Firewall Using Firewalld Rocky Linux 9

    How To Set Up a Firewall Using FirewallD on Rocky Linux 9

    Install Nginx on Rocky Linux 9

    How To Install Nginx on Rocky Linux 9: A Comprehensive Guide

    Install Apache on Rocky Linux

    How To Install and Configure Apache on Rocky Linux 9

    Install MongoDB on Rocky Linux 9

    How To Install MongoDB 6.0 on Rocky Linux 9

    Install Docker on Rocky Linux

    How To Install Docker CE on Rocky Linux 9

  • CentOS
    Secure SSH with Fail2Ban

    How To Secure SSH with Fail2Ban on CentOS 7

    Install PHP8.2 on CentOS 7

    How To Install PHP 8.2 on CentOS 7 / RHEL 7

    Install Apache on CentOS 7

    How To Install Apache Web Server on CentOS 7

    Set Up FirewallD on CentOS 7

    How To Set Up a Firewall Using FirewallD on CentOS 7

    Initial Setup CentOS 7 Server

    Initial Setup CentOS 7 Server: Secure and Efficient

    Install Nginx on CentOS 7

    How To Install Nginx on CentOS 7: A Comprehensive Guide

    Build NGINX from Source on Centos 7

    How To Build NGINX from Source (Compile) on Centos7

    Install Docker Swarm on CentOS 7

    Install and Configure Docker Swarm Mode on Centos 7

    Install Docker Compose on Centos 7

    How To Install and Use Docker Compose on Centos 7

  • Linux
    Manage Groups on Linux

    A Simple Guide: How To Manage Groups on Linux

    Logrotate In Linux

    How To Manage Log Files Using Logrotate In Linux

    Check File Size in Linux

    The Easy Ways to Check File Size in Linux

    Linux server security system administrators

    Best Practices Linux Server Security for System Administrator

    Backup Files From Remote Linux VPS Using Rsync Script

    How To Backup Files From Remote Linux VPS Using Rsync Script

    SSH Key-based Authentication

    How To Configure SSH Key-based Authentication In Linux

    Linux File Permissions

    Understanding Linux File Permissions for Beginners

    Create Multiboot USB with Ventoy

    How To Create Multiboot USB with Ventoy in Linux

    Find Hard Disk Drive Information in Linux

    How To Find Hard Disk Drive Information in Linux

No Result
View All Result
Linux Tutorials for Beginners
No Result
View All Result

Home » Ubuntu » How To Set Up a Firewall with UFW on Ubuntu 22.04

How To Set Up a Firewall with UFW on Ubuntu 22.04

sammbysamm
October 21, 2023
Set Up Firewall on Ubuntu 22.04

How To Set Up a Firewall with UFW on Ubuntu 22.04

Share on FacebookShare on LinkedinShare on Whatsapp

If you’re concerned about the security of your Ubuntu 22.04 system, setting up a firewall is a crucial step to protect your data and keep potential threats at bay. In this article, we will show you how to set up a firewall with UFW on Ubuntu 22.04, using familiar words and simple explanations.

Table of Contents

  • What is a Firewall?
  • Why UFW on Ubuntu 22.04?
    • Step 1: Open a Terminal you Ubuntu 22.04
    • Step 2: Check UFW Status on Ubuntu 22.04
    • Step 3: Enable UFW on Ubuntu 22.04
    • Step 4: Configure Default Policies
    • Step 5: Allow SSH Access
    • Step 6: Allow Other Services
    • Step 7: Check the Rules
    • Step 8: Delete or Disable Rules
    • Step 9: Reload UFW on Ubuntu 22.04
    • Step 10: Check UFW Status Again
  • Conclusion

What is a Firewall?

Before diving into the setup process, let’s briefly understand what a firewall is and why you need one. A firewall acts as a barrier between your computer and the outside world, controlling incoming and outgoing network traffic based on a set of rules. It helps prevent unauthorized access and safeguards your system from malicious activities.

OTHER POSTS

How To Install and Secure phpMyAdmin on Ubuntu 22.04

How To Secure SSH with Fail2Ban on Ubuntu 22.04

How To Install Uptime Kuma on Ubuntu 22.04

Why UFW on Ubuntu 22.04?

Ubuntu 22.04 comes with UFW pre-installed, making it an excellent choice for setting up a firewall. UFW is known for its simplicity and user-friendly interface, making it accessible even for beginners.

Now, let’s get started with the step-by-step process:

Step 1: Open a Terminal you Ubuntu 22.04

First, open a terminal on your Ubuntu 22.04 system. You can do this by pressing Ctrl+Alt+T or searching for “Terminal” in the applications menu.

Step 2: Check UFW Status on Ubuntu 22.04

To check if UFW is already enabled on Ubuntu 22.04, type the following command:

Bash
$ sudo ufw status

If UFW is not enabled, you will see a message indicating that the firewall is inactive.

Step 3: Enable UFW on Ubuntu 22.04

To enable UFW on Ubuntu 22.04, use the following command:

Bash
$ sudo ufw enable

You’ll be prompted to enter your sudo password. Afterward, confirm the action by typing ‘y’ and pressing Enter.

Step 4: Configure Default Policies

By default, on Ubuntu 22.04 UFW denies all incoming and outgoing traffic. You can change these settings based on your needs. Here are some common configurations:

Allow all outgoing traffic:

Bash
$ sudo ufw default allow outgoing

Block all outgoing traffic:

Bash
$ sudo ufw default deny outgoing

Allow all incoming traffic:

Bash
$ sudo ufw default allow incoming

Block all incoming traffic:

Bash
$ sudo ufw default deny incoming

Choose the configuration that best suits your security requirements.

Step 5: Allow SSH Access

If you’re using SSH to access your Ubuntu 22.04 system remotely, you should allow SSH traffic. Use the following command to do so:

Bash
$ sudo ufw allow OpenSSH

This will enable SSH access on the default port 22.

Step 6: Allow Other Services

Depending on your server’s setup, you may need to allow other services or applications to function correctly. For example, to enable web traffic, use:

Bash
$ sudo ufw allow 'Apache Full'

Or for a database server:

Bash
$ sudo ufw allow 'MySQL'

Be sure to specify the service name correctly.

Step 7: Check the Rules

To see a list of rules you’ve added, run:

Bash
$ sudo ufw status numbered

This will display a numbered list of the firewall rules.

Step 8: Delete or Disable Rules

If you need to delete or disable a rule, you can do so using the following commands:

To delete a rule by its number:

Bash
$ sudo ufw delete [rule number]

To disable a rule by its number:

Bash
$ sudo ufw disable [rule number]

Step 9: Reload UFW on Ubuntu 22.04

After making changes to your firewall rules, reload UFW to apply the updates:

Bash
$ sudo ufw reload

Step 10: Check UFW Status Again

To ensure that your firewall is properly configured and active on your Ubuntu 22.04, run:

Bash
$ sudo ufw status

Conclusion

Congratulations! You’ve successfully set up a firewall using UFW on your Ubuntu 22.04 system. By following these steps and configuring your firewall to suit your specific needs, you’ve taken a significant step toward enhancing the security of your system.

Remember, a well-configured firewall is a critical component of your overall system security. Regularly review and update your firewall rules to adapt to changing security requirements.

In this guide, we’ve covered the basics of setting up a firewall with UFW on Ubuntu 22.04, using familiar words and clear explanations. Now, you can enjoy improved protection for your Ubuntu system.

Also Read Our Other Guides :

  • How To Set Up a Firewall Using FirewallD on CentOS 7
  • How To Set Up a Firewall Using FirewallD on Rocky Linux 9
  • How To Set Up a Firewall with UFW on Debian 11
  • Initial Setup Debian 11 Server: Secure and Efficient
  • Initial Setup Ubuntu Server 22.04: Secure and Efficient
  • Initial Setup Rocky Linux 9 Server: Secure and Efficient
  • How To Install Ubuntu Server 22.04 LTS with Screenshots
  • How To Install Uptime Kuma on Ubuntu 22.04

Finally, now you have learned how to set up a firewall using Uncomplicated Firewall (UFW) on Ubuntu 22.04.

Tags: FirewallSecurityServer GuideUbuntuUFW

If you got help by our tutorials, please buy me a coffee..!

Buy Me a Coffee

Thank you so much for your support!!

Previous Post

Initial Setup CentOS 7 Server: Secure and Efficient

Next Post

How To Set Up a Firewall Using FirewallD on CentOS 7

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

RECENT POST

Install and Secure phpMyAdmin on Ubuntu 22.04

How To Install and Secure phpMyAdmin on Ubuntu 22.04

by samm
July 22, 2024
0

Are you ready to take control of your MySQL databases on Ubuntu 22.04? In this step-by-step guide, we'll walk you...

Manage Groups on Linux

A Simple Guide: How To Manage Groups on Linux

by samm
November 12, 2023
0

Are you a Linux enthusiast looking to enhance your system administration skills? One fundamental aspect you should master is how...

Install phpMyAdmin on Rocky Linux 9

How To Install phpMyAdmin on Rocky Linux 9

by samm
November 11, 2023
0

If you're navigating the world of Rocky Linux 9 and looking to streamline your MariaDB or MySQL database management, installing...

Logrotate In Linux

How To Manage Log Files Using Logrotate In Linux

by samm
November 10, 2023
0

Log files are an essential part of any Linux system. They provide valuable insights into the system's activities, helping administrators...

Load More

RECOMMENDED.

Install Redis on Debian

How To Install Redis on Debian 11 Server

October 16, 2023
Secure SSH with Fail2Ban

How To Secure SSH with Fail2Ban on Rocky Linux 9

October 29, 2023
sammlinux sammlinux sammlinux

Related Posts

Install and Secure phpMyAdmin on Ubuntu 22.04
Ubuntu

How To Install and Secure phpMyAdmin on Ubuntu 22.04

July 22, 2024
Secure SSH with Fail2Ban
Ubuntu

How To Secure SSH with Fail2Ban on Ubuntu 22.04

October 29, 2023
Install Uptime Kuma on Ubuntu 22.04
Ubuntu

How To Install Uptime Kuma on Ubuntu 22.04

November 12, 2023
Install Ubuntu Server 22.04
Ubuntu

How To Install Ubuntu Server 22.04 LTS with Screenshots

October 21, 2023
Load More
Next Post
Set Up FirewallD on CentOS 7

How To Set Up a Firewall Using FirewallD on CentOS 7

  • About Us
  • Disclaimers
  • Privacy Policy
  • Sitemap

© 2023 sammlinux - Learn Today for Lead Tomorrow.

No Result
View All Result
  • Ubuntu
  • Debian
  • Rocky Linux
  • CentOS
  • Linux

© 2023 sammlinux - Learn Today for Lead Tomorrow.