Skip to content
Technology News Information & Jobs

Technology News Information & Jobs

Ubuntu Tutorials, Ubuntu How To , Linux Tips, Tech Jobs

  • Work with US
  • Search Jobs
  • Post a Job
  • Contact Us
  • Ubuntu
    • Ubuntu 18.04
  • Ubuntu 20.04
  • Ubuntu 22.04
  • Themes
  • Linux
  • Laptops
  • Tutorials
  • Job Dashboard
  • Toggle search form
Configure A Firewall On Ubuntu 20.04 With UFW

Configure A Firewall On Ubuntu 20.04 With UFW

Posted on May 11, 2020 By admin No Comments on Configure A Firewall On Ubuntu 20.04 With UFW

Tutorial To Setup A Firewall On Ubuntu 20.04 With UFW

This article describes how to monitor and filter incoming and outgoing network traffic with firewalls in Ubuntu 20.04 LTS.

Uncomplicated Firewall or UFW is a front-end for managing iptables firewall rules in Ubuntu 20.04 LTS.

Run the following command to install UFW in Ubuntu 20.04 LTS.

sudo apt updatesudo apt install ufw

Note: UFW is part of the standard Ubuntu 20.04 installation.

You can check the status of the UFW as it is disabled by default.

sudo ufw status verbose

To enable UFW:

sudo ufw enable

To reset UFW:

Run the following command to reset the UFW:

sudo ufw reset

The default polices of UFW firewall are defined in the /etc/default/ufw file.

To set the defaults used by UFW, run the following commands:

sudo ufw default deny incoming
sudo ufw default allow outgoing

Run the following command to list out the application profile.

sudo ufw app list

Allow SSH connection:

sudo ufw allow ssh

Allow Specific IP Addresses
Run the following command to allow specific ip address through the UFW firewall.

sudo ufw allow from 203.0.111.4

Run the following command to allow the subnet of ip addresses.

sudo ufw allow from203.0.111.0/24

Deny  Specific IP Address.
Run the following command to deny specific IP Address.

sudo ufw deny from 203.0.111.4

 

READ More Relevant Stuff:  How To List Installed Packages On Ubuntu Operating System
Ubuntu 20.04 Tags:Linux firewall, ubuntu, Ubuntu firewall

Post navigation

Previous Post: Top Desktop Environments For Ubuntu 20.04 LTS [2023]
Next Post: Best NES Emulators For Ubuntu 20.04 LTS: Play Old NES Games

Related Posts

No More “Popularity Contest” Package By Default : Ubuntu No More “Popularity Contest” Package By Default : Ubuntu Ubuntu 20.04
Things To Do After Installing Ubuntu 20.04 LTS Things To Do After Installing Ubuntu 20.04 LTS How To Ubuntu
Tutorial To Add Swap Space On Ubuntu 20.04 Tutorial To Add Swap Space On Ubuntu 20.04 Ubuntu 20.04
Ubuntu 20.10 Groovy Gorilla Reaches End Of Life On July 22nd, 2021 Ubuntu 20.04
Install Mate Desktop On Ubuntu 20.04 LTS Install MATE Desktop Environment On Ubuntu 20.04 LTS Themes
Configure CTRL+ALT+DEL As Task Manager In Ubuntu 20.04/18.04 Configure CTRL+ALT+DEL As Task Manager In Ubuntu 20.04/18.04 How To Ubuntu

Leave a Reply Cancel reply

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

Recent Posts

  • How To Enable Hibernate in Ubuntu 22.04 LTS May 20, 2024
  • Popular Ubuntu Games: Top 5 Games To Play March 17, 2024
  • WordPress | Your site doesn’t include support for the “generateblocks/container” block GenerateBlocks Plugin February 11, 2024
  • Ubuntu Autoremove Command Debian Autoremove Command February 10, 2024
  • How To Mount Windows 11 Shares on Debian Linux December 7, 2023
  • Anonymous Browsing 101: A Deep Dive Into Residential Proxies November 20, 2023
  • How To Correctly Install Uninstall Linux Ubuntu Nvidia Drivers Fast October 31, 2023
  • Ethical Web Design: The Dos and Don’ts October 28, 2023
  • Understanding the Role of Security Operations Center October 25, 2023
  • The Positive Effects of AI Tools and Online Services on Students Successful Essay-Writing Skills October 3, 2023
  • Linux Wget Examples September 27, 2023

Categories

  • Android
  • Apple
  • Blogs
  • Debian
  • Fix
  • Gadgets
  • Game
  • Google
  • How To Ubuntu
  • Internet
  • Laptops
  • Linux
  • Linux Commands
  • Linux Game
  • Linux Mint
  • News
  • Operating Systems
  • Security
  • Technology
  • Themes
  • Tools
  • Tutorials
  • Ubuntu
  • ubuntu 18.04
  • Ubuntu 20.04
  • Ubuntu 22.04
  • Windows 11
  • Wordpress
  • Search Jobs
  • Post a Job
  • Job Dashboard
  • Contact Us
  • About US
  • Cookie Policy
  • Terms and Conditions
  • Privacy Policy
  • Sitemap
  • Write For US

Tags

android apps centos ChatGPT command Commands Debian deepin Desktop docker Fedora fix game games Gaming gnome google kernel linux linux commands linux kernel Linux laptops Linux Mint Linux themes minecraft NVIDIA Python Raspberry Pi sysadmin themes ubuntu ubuntu 18.04 Ubuntu 18.04 LTS Ubuntu 20.04 ubuntu 20.04 lts Ubuntu 22.04 LTS Ubuntu games Ubuntu kernel ubuntu themes ubuntu tutorial VirtualBox Windows Windows 11 Wine WSL
itsubuntu.com is an Equal Opportunity Employer. For Advertisement, Jobs, Guest posts, and any other thoughts, email us at [email protected]
  • Technical Writer – Data & Architecture

    • Phoenix, AZ
    • Experis
    • Temporary
  • Customs Entry Writer

    • Houston, TX
    • Total Quality Logistics
    • Full Time
  • Contract Writer

    • Boca Raton, FL
    • Seneca Resources
    • Full Time
  • AML SAR Writer

    • New Castle County, DE
    • Open Systems Technologies
    • Full Time
  • SAR writer

    • New Castle, DE
    • Pyramid Consulting, Inc
    • Full Time
  • User Experience Writer

    • Seattle, WA
    • 24 Seven Talent
    • Full Time
  • Business Analyst/ Technical Writer

    • Alexandria, VA
    • Unissant
    • Full Time
  • Junior Demand Writer

    • Costa Mesa, CA
    • The Law Offices of Daniel Kim
    • Full Time

Copyright © 2025 Technology News Information & Jobs.

Powered by PressBook Grid Blogs theme