ssh:tldr:6ab41

The command sshd -p ${port} is used to start the SSH (Secure Shell) daemon on a specific port.

Here's a breakdown of the command:

• sshd: It is the command to start the SSH daemon on the server. The SSH daemon is responsible for accepting incoming SSH connections and managing authentication and secure access to the server.
• -p ${port}: It specifies the port on which the SSH daemon should listen for incoming connections. ${port} is a placeholder that signifies a variable, and you need to replace it with the actual port number. By default, SSH listens on port 22, but using this option, you can specify a different port. For example, if you want the SSH daemon to listen on port 2222, you would replace ${port} with 2222, resulting in the command sshd -p 2222.

In summary, the command sshd -p ${port} is used to start the SSH daemon on a specific port, allowing secure remote access to the server using the SSH protocol.