ufw - delete firewall rule

In this short article, we would like to show how to delete rules using ufw command.

Quick solution:

sudo ufw delete [rule_number]


# e.g.
#   sudo ufw delete 1
#   sudo ufw delete 2
#   etc.

Where: [rule_number] should be replaced with rule number (use sudo ufw status numbered command to display rule numbers).

Solution 1

Using this approach we need to construct rule.

Template:

sudo ufw delete [rule_query]

Example:

sudo ufw delete allow www

Where: command used to add rule is sudo ufw allow www.

Solution 2

Using this approach we need to know rule number.

Simple steps:

1. display rules using:

   sudo ufw status numbered

   Example output:

   Status: active
   
        To                         Action      From
        --                         ------      ----
   [ 1] 22/tcp                     ALLOW IN    Anywhere
   [ 2] 80/tcp                     ALLOW IN    Anywhere
   [ 3] 443/tcp                    ALLOW IN    Anywhere

    
2. disable choosen rule using:

   sudo ufw delete 2

   Where: 2 means rule number chosen from 1-3 positions.
    
3. check changes using:

   sudo ufw status numbered

   Example output:

   Status: active
   
        To                         Action      From
        --                         ------      ----
   [ 1] 22/tcp                     ALLOW IN    Anywhere
   [ 2] 443/tcp                    ALLOW IN    Anywhere