The objective of this tutorial is to activate the UFW firewall on Ubuntu 20.04 Focal Fossa Linux.
In this tutorial you will learn:
- How to check UFW status
- How to activate UFW
How to activate an inactive UFW on Ubuntu 20.04
Software Requirements and Conventions Used
| Category | Requirements, Conventions or Software Version Used |
|---|---|
| System | Installed Ubuntu 20.04 or upgraded Ubuntu 20.04 Focal Fossa |
| Software | UFW |
| Other | Privileged access to your Linux system as root or via the sudo command. |
| 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 |
How to activate an inactive UFW on Ubuntu 20.04 step by step instructions
- First, check your current UFW status:
$ sudo ufw status Status: inactive
- Activate UFW:
$ sudo ufw enable Firewall is active and enabled on system startup
- (optional) Check UFW status:
$ sudo ufw status Status: active
Once the UFW is enabled, this settings should persists after system reboots.