Turn off the firewall in Ubuntu

Turning off the firewall in Ubuntu can be done with the following steps:

1. View firewall status:

sudo ufw status

2. If the firewall status is active, execute the following command to deactivate the firewall:

sudo ufw disable

3. Confirm whether to disable the firewall by entering the following command:

sudo ufw status

4. If the output shows a status of inactive, the firewall was successfully shut down.

Please note that turning off the firewall will expose the network ports in the system to external networks, which may increase the security risk of the system. Before doing this, make sure your system is in a protected network environment, or you have taken other appropriate security measures to protect your system and network.