ufw:tldr:25e7a
ufw: Deny traffic on port 80 on this host.
$ ufw deny ${80}
try on your machine
The command "ufw deny ${80}" is a firewall command using the Uncomplicated Firewall (ufw) tool to deny incoming connections on port 80.
Here's a breakdown of the command:
- "ufw" is the command-line tool for managing firewall rules on Ubuntu or Debian-based systems.
- "deny" is the action to be performed. In this case, it tells ufw to deny access to the specified port.
- "${80}" is a placeholder for the specific port number. By convention, port numbers are represented using numbers, and port 80 is commonly associated with HTTP traffic.
Overall, this command will block incoming connections on port 80, effectively disabling HTTP traffic to the system.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.