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---
title: "OpenSSH"
type: entity
tags: [ssh, security, networking]
date: 2026-04-16
---
## Definition
OpenSSHOpen Secure Shell是 SSHSecure Shell协议的开源实现提供安全的远程登录、文件传输和端口转发功能。
## Role
- SSH 服务端软件,提供远程登录服务
- sftp/scp 命令用于安全文件传输
## Aliases
- OpenSSH Server
- sshd
## Key Properties
- 默认端口22
- 支持密钥认证和密码认证
- 支持多平台Linux、macOS、Windows
## Connections
- [[systemd]] ← managed_by ← [[OpenSSH]]
- [[UFW]] ← allows ← [[OpenSSH]]
- [[Ubuntu]] ← hosts ← [[OpenSSH]]