Tag Archives: Allow incoming firewall port on Ubuntu 18.04

How to Open/Allow incoming firewall port on Ubuntu 18.04 Bionic Beaver Linux

Objective

The objective of this article is to serve as a quick reference guide on how to allow incoming traffic on any TCP or UDP port using Ubuntu 18.04 Bionic Beaver Linux with UFW firewall.

Operating System and Software Versions

  • Operating System: – Ubuntu 18.04 Bionic Beaver Linux

Requirements

Privileged access to your Ubuntu System as root or via sudo command is required.

Difficulty

EASY

Conventions

  • # – requires given linux commands to be executed with root privileges either directly as a root user or by use of sudo command
  • $ – requires given linux commands to be executed as a regular non-privileged user

Instructions

Example 1

Open incoming TCP port 10000 to any source IP address:

$ sudo ufw allow from any to any port 10000 proto tcp

Example 2

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