UFW wont delete rule

I was testing something and added a rule to my firewall to allow port 9000. in retrospect, I should have just disabled it temporarily. anyhow, I went to remove the rule and it wont let me, it says rule not found.

$ sudo ufw delete 9000 ERROR: Could not find rule '9000' 

but clearly, the rule is still active:

$ sudo ufw status verbose Status: active Logging: on (low) Default: deny (incoming), allow (outgoing), disabled (routed) New profiles: skip To Action From -- ------ ---- 80 ALLOW IN Anywhere 443 ALLOW IN Anywhere 9000 ALLOW IN Anywhere 80 (v6) ALLOW IN Anywhere (v6) 443 (v6) ALLOW IN Anywhere (v6) 9000 (v6) ALLOW IN Anywhere (v6) 

I read the UFW help and it says you can delete a port number, but it doesn't happen. How can I remove the rule for port 9000 from UFW?

3 Answers

The correct syntax would be:

sudo ufw delete allow 9000 

If you make a rule by the following:

sudo ufw allow 9000 

Then the rule is allow 9000. Now if you want to delete the rule:

sudo ufw delete rule 

i.e.

sudo ufw delete allow 9000 

The first step you can list all current rules by number:

$ sudo ufw status numbered 

Then base on the listed numbers, you can delete rule by number. The number of the rule is shown in the leftmost column.

$ sudo ufw delete 2 

You can refer to link:

I recommend using Gufw (A very user-friendly way to manage your Ubuntu Firewall, powered by ufw)