OpenSSH for The University of Southern Mississippi

OpenSSH is a suite of secure networking utilities that provides strong encryption and authentication for remote login, file transfer, and tunneling.

To install OpenSSH, use your package manager and search for the OpenSSH package, then follow the installation instructions specific to your operating system.

The default port used by OpenSSH is 22.

To generate an SSH key pair, you can use the ssh-keygen utility. Run 'ssh-keygen' command in your terminal and follow the prompts.

To connect to a remote server using OpenSSH, use the ssh command followed by the username and IP address or hostname of the remote server. Example: 'ssh [email protected]'

To transfer files using OpenSSH, you can use the secure file transfer protocol (SFTP) with the sftp command. Example: 'sftp [email protected]'

Yes, OpenSSH supports tunneling functionality with the '-L' and '-R' options to create local and remote port forwarding respectively.

Some ways to improve the security of your OpenSSH server include disabling SSH protocol 1, using key-based authentication, and regularly updating OpenSSH to the latest version.

OpenSSH configuration is done through the ssh_config and sshd_config files, usually located in the /etc/ssh directory. Edit these files to customize OpenSSH behavior.

The known_hosts file is used by OpenSSH to store the public keys of remote servers that you have previously connected to. It helps verify the authenticity of the remote server during subsequent connections.