Toolbox Aid

August 9th, 2024 2:32 PM Mr. Q Categories: Command

Description: A user-friendly frontend for managing firewall rules on Linux. ufw is designed to make configuring a firewall easier by providing a straightforward command-line interface.

• Basic Usage:

  ufw [options] [command]

• Common Commands:
• enable: Enable the firewall.
• disable: Disable the firewall.
• status: Show the status of the firewall and current rules.
• allow [port]: Allow incoming traffic on the specified port.
• deny [port]: Deny incoming traffic on the specified port.
• delete [rule]: Delete a rule.
• reset: Reset all rules to their default state.

Command to Enable UFW

$ sudo ufw enable
Firewall is active and enabled on system startup

Command to Check UFW Status:

$ sudo ufw status
Status: active

To                         Action      From
--                         ------      ----
22/tcp                      ALLOW       Anywhere
80/tcp                      ALLOW       Anywhere
22/tcp (v6)                 ALLOW       Anywhere (v6)
80/tcp (v6)                 ALLOW       Anywhere (v6)

Command to Allow Incoming Traffic on Port 8080:

$ sudo ufw allow 8080
Rule added

Command to Deny Incoming Traffic on Port 3306:

$ sudo ufw deny 3306
Rule added

Command to Reset UFW Rules:

$ sudo ufw reset
Resetting all rules to installed defaults. Proceed? [y/n]: y

Note: Always be careful when configuring firewall rules to avoid accidentally blocking necessary services.