Question

UFW not blocking connections from other IPs

I have setup UFW with:

sudo ufw default allow outgoing
sudo ufw default deny incoming
sudo ufw allow ssh
sudo ufw allow from 123.456.78.9

sudo ufw status:

To                         Action      From
--                         ------      ----
22                         ALLOW       Anywhere                  
Anywhere                   ALLOW       123.456.78.9        
22 (v6)                    ALLOW       Anywhere (v6)

How ever I am still able to connect to the node from other IPs on ports other than 22. What am I doing wrong? Tried reloading and restarting.

This is a very basic installation, at this point I have really only created a new user.

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david0be3aac31af75428ef645 • February 6, 2019
Accepted Answer

The issue was that I was using Docker which does not respect the rules of UFW.

unixynet • January 28, 2019

Hi

Are you certain you’re attempting to connect from an IP other than 123.456.78.9 (your home/office IP)? Because that IP is clear to connect to any port on your server.

Cheers

jarland • January 28, 2019

Greetings!

The “ufw allow ssh” is allowing SSH from any location. Dropping that and being more specific will help to accomplish your goal. I recommend reviewing this, it’s pretty tame as far as documentation goes, and full of examples:

https://help.ubuntu.com/community/UFW

Jarland