Linux Security: Complete Guide to Configuring UFW Firewall in Ubuntu | Uncomplicated Firewall #ufw
UFW, or Uncomplicated Firewall, is an interface to iptables that is geared towards simplifying the process of configuring a firewall. While iptables is a solid and flexible tool, it can be difficult for beginners to learn how to use it to properly configure a firewall. If you’re looking to get started securing your network, and you’re not sure which tool to use, UFW may be the right choice for you.
Basic Syntax and Examples
Default rules are fine for the average home user
When you turn UFW on, it uses a default set of rules (profile) that should be fine for the average home user. That’s at least the goal of the Ubuntu developers. In short, all ‘incoming’ is being denied, with some exceptions to make things easier for home users.
#this tutorial will show you how to set up a firewall with UFW on Ubuntu
#######Setup Ubuntu firewall with UFW
Enable IPv6
Set Up Default Policies
Allow SSH Connections
Enabling UFW
Allow Any Other Required Connections
Denying Connections
Deleting Firewall Rules
Check UFW Status and Rules
How to Disable or Reset Firewall on Ubuntu
🕒 Timestamps:
00:00 – Understanding UFW – Uncomplicated Firewall: Explained
00:44 – Channel Introduction
00:56 – Allowing/Denying Incoming and Outgoing Connections
02:34 – Allowing/Denying Applications
03:27 – Allowing/Denying Port Numbers
04:05 – Enabling Firewall in Ubuntu: UFW Enable
05:08 – Allowing/Denying Port Number Ranges
05:50 – Allowing/Denying IPs
08:00 – Allowing/Denying Interfaces
09:46 – Deleting Firewall Rules
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