SSH (Secure Shell) is a cryptographic network protocol that allows secure communication between two computers over an unsecured network. It provides a secure channel for remote login, remote command execution, and other secure network services.
SSH uses encryption techniques to ensure confidentiality and integrity of data transmitted between the client and server. It replaces insecure protocols like Telnet, FTP, and rlogin, which transmit data in clear text without any encryption.
Here are some key features and use cases of SSH:
Remote Login: SSH allows users to log in securely to a remote server or computer from their local machine using a username and password or public key authentication.
Secure File Transfer: With SSH, you can securely transfer files between your local machine and a remote server using utilities like SCP (Secure Copy) or SFTP (SSH File Transfer Protocol).
Remote Command Execution: SSH enables users to execute commands on a remote server from their local terminal securely. This is useful for managing servers remotely or automating tasks through scripts.
Tunneling/Port Forwarding: SSH supports tunneling, allowing you to create encrypted connections within an insecure network. It can forward traffic from one port on your local machine to another port on a remote server securely.
Overall, SSH plays a crucial role in providing secure access and communication between systems over the internet, ensuring data privacy and protection against unauthorized access or tampering.
内容由零声教学AI助手提供,问题来源于学员提问