Interview Q&A / Linux & Shell

INTERVIEW Q&A · 63 QUESTIONS

Linux & Shell interview questions

Permissions, processes, pipes and the commands you are expected to know cold.

  1. What is SSH local port forwarding, and when is it used?

    ssh -L local_port:target_host:target_port user@server opens a port on your machine and tunnels traffic through the SSH server to the target. It lets you reach a service, such as a private database, that is only accessible from the server's network.

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