I currently and trying to open port 6333 in my Ubuntu 18.04 droplets. Neither of them are listening on the port and I have already tried the commands:
sudo ufw allow 6333 sudo ufw allow 6333/tcp
Can anyone tell me what I am doing wrong?
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Hi @ryanjaycc,
For the ports to be opened there should be something listening on them. Basically, you can’t open a port and connect to it if there is no service/app listing on the same port.
Hi @ryanjaycc,
Yes, as @kfsys says, the main thing is to have an active service that responds to that port.
Additionally, you can check your firewall status with the following command:
$ sudo ufw status verbose
If the firewall is not active, you can do it with:
$ sudo ufw enable
Hope that helps you,
Sergio Turpín
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