How to use SSH to connect to a remote server on Ubuntu?

How to use SSH to connect to a remote server on Ubuntu?

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2 answers

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by kaley , 2 years ago

@maddison_wintheiser 

To use SSH to connect to a remote server on Ubuntu, follow these steps:

  1. Open a terminal window on your local machine.
  2. Enter the following command to start an SSH session:
1
ssh username@remote_server_ip_address


Replace username with your username on the remote server, and remote_server_ip_address with the IP address or hostname of the remote server.

  1. If this is your first time connecting to the remote server, you may be prompted to verify the server's fingerprint. If you trust the server, type "yes" and press Enter.
  2. Next, enter your password when prompted. Note that the password will not be displayed as you type it.
  3. Once you have successfully authenticated, you will be logged in to the remote server and can begin using it as if you were sitting at the terminal.
  4. To exit the SSH session and return to your local machine's terminal, type exit and press Enter.


That's it! You can now use SSH to remotely access and manage your Ubuntu server.

by benny_schoen , 5 months ago

@maddison_wintheiser 

To add to the above information, here are a few additional tips and options you can use when using SSH to connect to a remote server on Ubuntu:

  1. Use SSH keys for authentication: Instead of entering a password each time you want to connect, you can set up SSH keys for authentication. This is more secure and convenient, especially when automating tasks or connecting frequently to the same server. You can generate SSH keys using the ssh-keygen command.
  2. Specify a custom port: By default, SSH uses port 22. If the remote server is configured to use a different port, you can specify it using the -p option. For example, if the server is using port 2222, you can connect like this: ssh -p 2222 username@remote_server_ip_address.
  3. Use verbose mode: The -v option can be used to enable verbose mode, which provides more information about the connection process. This can be helpful for troubleshooting connection issues. You can increase the verbosity level by adding more v's (e.g., -vv or -vvv).
  4. Keep the connection alive: If you want to keep the SSH connection alive even when you're not actively using it, you can use the ServerAliveInterval option in your SSH configuration file. This will send keep-alive packets at specified intervals to prevent the connection from timing out.


By using these additional options and tips, you can enhance your SSH experience and make remote server management more efficient and secure.