Linux Network connection

SSH: Secure login to remote host or run remote command (SSH:Secure Shell)

Telnet: Log on to the remote host (unsafe)

SCP: Secure transfer of files between the remote host and the local

SFTP: Secure transfer of files between remote host and local (interactive)

ftp: Transferring files between the remote host and the local (interactive, unsafe)

In Linux systems, it is easy to establish a network connection between machines for remote logins and file transfers. But you need to confirm the security of this.

Linux Network connection