Disable ufw

$ sudo ufw disable
Firewall stopped and disabled on system startup

Source: linuxconfig.org

Firewall in ubuntu 18.04

Managing UFW from command line
UFW ( Uncomplicated Firewall ) firewall is a default firewall on Ubuntu 18.04 Bionic Beaver Linux.
Check a current firewall status
By default the UFW is disabled. You can check the status of your firewall by executing the following linux command:

$ sudo ufw status
[sudo] password for linuxconfig: 
Status: inactive

For more verbose output append word verbose to the above command:

$ sudo ufw status verbose

Enable Firewall
To enable firewall execute:

$ sudo ufw enable
Command may disrupt existing ssh connections. Proceed with operation (y|n)? y
Firewall is active and enabled on system startup

Firewall, is now enabled:

$ sudo ufw status
Status: active

Source: linuxconfig.org

Disable ufw

$ sudo ufw status
Status: inactive

Source: linuxconfig.org

Similar codes

1 vote240 views1 answer
Revert uncommitted changes to a single file
Shell/Bash
16 votes261 views6 answers
Add image to readme
Shell/Bash
0 vote251 views1 answer
How to install Sunra\PhpSimple\HtmlDomParser composer
Shell/Bash
2 votes249 views1 answer
Ion2 calendar
Shell/Bash
0 vote274 views1 answer
Stop a service at startup linux amazon 2
Shell/Bash
0 vote254 views1 answer
Reinstall settings app ubuntu
Shell/Bash
13 votes269 views5 answers
Git set remote tracking branch
Shell/Bash
5 votes332 views5 answers
Reload bashrc
Shell/Bash
11 votes252 views2 answers
Git doesn't ignore files in gitignore
Shell/Bash
0 vote256 views1 answer
Linux remove list of files
Shell/Bash