How to change Nginx firewall status to “active”

Question

When I query the netfilter firewall status I get “inactive”:

$ sudo ufw status
Status: inactive

I want to change it so I can see this:

Output
Status: active

To                         Action      From
--                         ------      ----
OpenSSH                    ALLOW       Anywhere                  
Nginx HTTP                 ALLOW       Anywhere                  
OpenSSH (v6)               ALLOW       Anywhere (v6)             
Nginx HTTP (v6)            ALLOW       Anywhere (v6)

I have been looking but didn't find any info about how to set the status.

Solution

You need to run

sudo ufw enable

to enable the firewall.

You can get further help on ufw on help.ubuntu.com and man ufw.

Example

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

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

$ sudo ufw disable
Firewall stopped and disabled on system startup
$ sudo ufw status
Status: inactive