Logging On To Your Pi Remotely
Once your Pi is up and running, you may want to put it away in your wiring cabinet or server rack. In that case, you'll need some means of logging on to it across the LAN rather than using a local keyboard and mouse. Telnet is deprecated nowadays and SSH should be used instead. The Pi comes with SSH installed but disabled by default. On later versions of the Pi OS, you can choose to enable SSH as part of the set-up process. Alternatively, to enable SSH at a later stage you can either run the set-up process again or follow the steps below.
At the Pi command line, enter the following command.
sudo mv /boot/boot_enable_ssh.rc /boot/boot.rc
Now, reboot your Pi.
When the Pi has restarted, you should be able to see the message "Starting OpenBSD Secure Shell server: sshd" near the end of the startup messages. You can now manage the Pi using SSH across your LAN/WAN. However, if you have your Pi accessible from the Internet it's good practice to set up a public/private key to log in rather than a password.
If you're going to be connecting from a Windows PC, there is no native SSH available yet so you will need to install a third party SSH client. PuTTY from Simon Tatham is the one I use.
You may find that you can connect to your Pi with SSH but the session hangs after a successful logon. This is usually caused because of a network QoS mismatch that affects certain switches and routers but you can correct this by editing the two files
to each file as the last record.