You are unable to establish an SSH console session from your home computer to a Linux server that hosts a customer database. You suspect that the connection is being blocked by the company firewall. Which port must be open on the firewall to allow this secure console connection?
Port 80
Port 3389
Port 22
Port 23
Port 22 is the default TCP port for Secure Shell (SSH). If this port is blocked, an SSH client cannot establish an encrypted console session with the remote Linux server.
Therefore, ensuring that TCP port 22 is open resolves the problem.
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