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				# 🚀 GitHub Actions 的 SSH
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				[English](./README.md) | 繁體中文 | [简体中文](./README.zh-cn.md)
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				## 目錄
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				- [🚀 GitHub Actions 的 SSH](#-github-actions-的-ssh)
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				  - [目錄](#目錄)
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				  - [📖 簡介](#-簡介)
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				  - [🧩 核心概念與輸入參數](#-核心概念與輸入參數)
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				    - [🔌 連線設定](#-連線設定)
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				    - [🛠️ 指令設定](#️-指令設定)
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				    - [🌐 代理設定](#-代理設定)
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				  - [⚡ 快速開始](#-快速開始)
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				  - [🔑 SSH 金鑰設定與 OpenSSH 相容性](#-ssh-金鑰設定與-openssh-相容性)
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				    - [設定 SSH 金鑰](#設定-ssh-金鑰)
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				      - [產生 RSA 金鑰](#產生-rsa-金鑰)
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				      - [產生 ED25519 金鑰](#產生-ed25519-金鑰)
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				    - [OpenSSH 相容性](#openssh-相容性)
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				  - [🛠️ 用法場景與進階範例](#️-用法場景與進階範例)
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				    - [使用密碼認證](#使用密碼認證)
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				    - [使用私鑰認證](#使用私鑰認證)
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				    - [多條指令](#多條指令)
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				    - [從檔案執行指令](#從檔案執行指令)
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				    - [多主機](#多主機)
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				    - [多主機不同埠號](#多主機不同埠號)
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				    - [多主機同步執行](#多主機同步執行)
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				    - [傳遞環境變數到 shell 腳本](#傳遞環境變數到-shell-腳本)
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				  - [🌐 代理與跳板機用法](#-代理與跳板機用法)
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				  - [🛡️ 安全最佳實踐](#️-安全最佳實踐)
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				    - [保護你的私鑰](#保護你的私鑰)
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				    - [主機指紋驗證](#主機指紋驗證)
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				  - [🚨 錯誤處理與疑難排解](#-錯誤處理與疑難排解)
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				    - [常見問題](#常見問題)
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				      - [指令找不到(npm 或其他指令)](#指令找不到npm-或其他指令)
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				  - [🤝 貢獻](#-貢獻)
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				  - [📝 授權](#-授權)
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				---
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				## 📖 簡介
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				**SSH for GitHub Actions** 是一個強大的 [GitHub Action](https://github.com/features/actions),可讓你在 CI/CD 工作流程中輕鬆且安全地執行遠端 SSH 指令。  
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				本專案以 [Golang](https://go.dev) 和 [drone-ssh](https://github.com/appleboy/drone-ssh) 建立,支援多主機、代理、進階認證等多種 SSH 場景。
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				[](https://github.com/appleboy/ssh-action/actions/workflows/main.yml)
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				---
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				## 🧩 核心概念與輸入參數
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				本 Action 提供彈性的 SSH 指令執行能力,並具備豐富的設定選項。
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				完整參數請參閱 [action.yml](./action.yml)。
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				### 🔌 連線設定
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				這些參數用於控制如何連線到遠端主機。
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				| 參數                | 說明                                          | 預設值 |
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				| ------------------- | --------------------------------------------- | ------ |
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				| host                | SSH 主機位址                                  |        |
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				| port                | SSH 埠號                                      | 22     |
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				| username            | SSH 使用者名稱                                |        |
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				| password            | SSH 密碼                                      |        |
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				| protocol            | SSH 協議版本(`tcp`、`tcp4`、`tcp6`)         | tcp    |
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				| sync                | 指定多個主機時同步執行                        | false  |
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				| timeout             | SSH 連線主機的逾時時間                        | 30s    |
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				| key                 | SSH 私鑰內容(如 `~/.ssh/id_rsa` 的原始內容) |        |
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				| key_path            | SSH 私鑰路徑                                  |        |
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				| passphrase          | SSH 私鑰密碼                                  |        |
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				| fingerprint         | 主機公鑰的 SHA256 指紋                        |        |
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				| use_insecure_cipher | 允許額外(不安全)的加密演算法                | false  |
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				| cipher              | 允許的加密演算法,未指定時使用預設值          |        |
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				### 🛠️ 指令設定
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				這些參數用於控制在遠端主機上執行的指令及相關行為。
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				| 參數            | 說明                                                  | 預設值 |
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				| --------------- | ----------------------------------------------------- | ------ |
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				| script          | 遠端執行的指令                                        |        |
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				| script_path     | 儲存庫中包含要遠端執行指令的檔案路徑                  |        |
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				| envs            | 傳遞給 shell 腳本的環境變數                           |        |
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				| envs_format     | 環境變數傳遞的彈性設定                                |        |
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				| allenvs         | 傳遞所有帶 `GITHUB_` 和 `INPUT_` 前綴的環境變數到腳本 | false  |
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				| command_timeout | SSH 指令執行逾時時間                                  | 10m    |
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				| debug           | 啟用除錯模式                                          | false  |
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				| request_pty     | 向伺服器請求偽終端                                    | false  |
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				| curl_insecure   | 允許 curl 連線無憑證的 SSL 網站                       | false  |
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				| version         | drone-ssh 執行檔版本,未指定時使用最新版本            |        |
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				### 🌐 代理設定
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				這些參數用於透過代理(跳板機)連線到目標主機。
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				| 參數                      | 說明                                      | 預設值 |
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				| ------------------------- | ----------------------------------------- | ------ |
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				| proxy_host                | SSH 代理主機                              |        |
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				| proxy_port                | SSH 代理埠號                              | 22     |
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				| proxy_username            | SSH 代理使用者名稱                        |        |
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				| proxy_password            | SSH 代理密碼                              |        |
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				| proxy_passphrase          | SSH 代理私鑰密碼                          |        |
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				| proxy_protocol            | SSH 代理協議版本(`tcp`、`tcp4`、`tcp6`) | tcp    |
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				| proxy_timeout             | SSH 連線代理主機的逾時時間                | 30s    |
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				| proxy_key                 | SSH 代理私鑰內容                          |        |
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				| proxy_key_path            | SSH 代理私鑰路徑                          |        |
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				| proxy_fingerprint         | 代理主機公鑰的 SHA256 指紋                |        |
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				| proxy_cipher              | 代理允許的加密演算法                      |        |
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				| proxy_use_insecure_cipher | 代理允許額外(不安全)的加密演算法        | false  |
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				> **注意:** 如需實現已移除的 `script_stop` 功能,請在 shell 腳本最上方加上 `set -e`。
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				---
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				## ⚡ 快速開始
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				只需簡單設定,即可在工作流程中執行遠端 SSH 指令:
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				```yaml
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				name: Remote SSH Command
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				on: [push]
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				jobs:
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				  build:
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				    name: Build
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				    runs-on: ubuntu-latest
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				    steps:
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				      - name: 執行遠端 SSH 指令(密碼認證)
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				        uses: appleboy/ssh-action@v1
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				        with:
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				          host: ${{ secrets.HOST }}
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				          username: linuxserver.io
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				          password: ${{ secrets.PASSWORD }}
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				          port: ${{ secrets.PORT }}
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				          script: whoami
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				```
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				**輸出:**
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				```sh
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				======CMD======
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				whoami
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				======END======
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				linuxserver.io
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				===============================================
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				✅ Successfully executed commands to all hosts.
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				===============================================
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				```
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				---
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				## 🔑 SSH 金鑰設定與 OpenSSH 相容性
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				### 設定 SSH 金鑰
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				建議於本地端(非遠端伺服器)產生 SSH 金鑰。請以 GitHub Secrets 指定的使用者名稱登入並產生金鑰對:
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				#### 產生 RSA 金鑰
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				```bash
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				ssh-keygen -t rsa -b 4096 -C "your_email@example.com"
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				```
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				#### 產生 ED25519 金鑰
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			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```bash
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				ssh-keygen -t ed25519 -a 200 -C "your_email@example.com"
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				將新產生的公鑰加入伺服器的 authorized_keys。 [了解更多 authorized_keys](https://www.ssh.com/ssh/authorized_keys/)
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```bash
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				# 加入 RSA 公鑰
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				cat .ssh/id_rsa.pub | ssh user@host 'cat >> .ssh/authorized_keys'
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				# 加入 ED25519 公鑰
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				cat .ssh/id_ed25519.pub | ssh user@host 'cat >> .ssh/authorized_keys'
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				複製私鑰內容並貼到 GitHub Secrets。
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```bash
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				# macOS
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				pbcopy < ~/.ssh/id_rsa
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				# Ubuntu
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				xclip < ~/.ssh/id_rsa
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				> **提示:** 複製內容需包含 `-----BEGIN OPENSSH PRIVATE KEY-----` 到 `-----END OPENSSH PRIVATE KEY-----`(含)。
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				ED25519 同理:
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```bash
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				# macOS
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				pbcopy < ~/.ssh/id_ed25519
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				# Ubuntu
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				xclip < ~/.ssh/id_ed25519
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				更多資訊:[SSH 免密碼登入](http://www.linuxproblem.org/art_9.html)。
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				> **注意:** 根據 SSH 版本,可能還需:
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				>
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				> - 將公鑰放入 `.ssh/authorized_keys2`
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				> - 設定 `.ssh` 權限為 700
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				> - 設定 `.ssh/authorized_keys2` 權限為 640
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				### OpenSSH 相容性
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				若出現以下錯誤:
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```bash
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey]
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				在 Ubuntu 20.04+,你可能需明確允許 `ssh-rsa` 演算法。請於 OpenSSH 設定檔(`/etc/ssh/sshd_config` 或 `/etc/ssh/sshd_config.d/` 下的 drop-in 檔案)加入:
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```bash
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				CASignatureAlgorithms +ssh-rsa
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				或直接使用預設支援的 ED25519 金鑰:
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```bash
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				ssh-keygen -t ed25519 -a 200 -C "your_email@example.com"
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				---
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				## 🛠️ 用法場景與進階範例
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				本節涵蓋常見與進階用法,包括多主機、代理、環境變數傳遞等。
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				### 使用密碼認證
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```yaml
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				- name: 執行遠端 SSH 指令(密碼認證)
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				  uses: appleboy/ssh-action@v1
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				  with:
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    host: ${{ secrets.HOST }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    username: ${{ secrets.USERNAME }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    password: ${{ secrets.PASSWORD }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    port: ${{ secrets.PORT }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    script: whoami
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				### 使用私鑰認證
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```yaml
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				- name: 執行遠端 SSH 指令(私鑰認證)
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				  uses: appleboy/ssh-action@v1
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				  with:
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    host: ${{ secrets.HOST }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    username: ${{ secrets.USERNAME }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    key: ${{ secrets.KEY }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    port: ${{ secrets.PORT }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    script: whoami
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				### 多條指令
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```yaml
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				- name: 多條指令
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				  uses: appleboy/ssh-action@v1
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				  with:
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    host: ${{ secrets.HOST }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    username: ${{ secrets.USERNAME }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    key: ${{ secrets.KEY }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    port: ${{ secrets.PORT }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    script: |
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      whoami
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      ls -al
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				### 從檔案執行指令
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```yaml
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				- name: 檔案指令
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				  uses: appleboy/ssh-action@v1
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				  with:
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    host: ${{ secrets.HOST }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    username: ${{ secrets.USERNAME }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    key: ${{ secrets.KEY }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    port: ${{ secrets.PORT }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    script_path: scripts/script.sh
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				### 多主機
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```diff
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				  - name: 多主機
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    uses: appleboy/ssh-action@v1
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    with:
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				-     host: "foo.com"
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				+     host: "foo.com,bar.com"
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      username: ${{ secrets.USERNAME }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      key: ${{ secrets.KEY }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      port: ${{ secrets.PORT }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      script: |
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				        whoami
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				        ls -al
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				預設 `port` 為 `22`。
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				### 多主機不同埠號
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```diff
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				  - name: 多主機
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    uses: appleboy/ssh-action@v1
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    with:
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				-     host: "foo.com"
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				+     host: "foo.com:1234,bar.com:5678"
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      username: ${{ secrets.USERNAME }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      key: ${{ secrets.KEY }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      script: |
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				        whoami
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				        ls -al
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				### 多主機同步執行
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```diff
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				  - name: 多主機
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    uses: appleboy/ssh-action@v1
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    with:
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      host: "foo.com,bar.com"
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				+     sync: true
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      username: ${{ secrets.USERNAME }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      key: ${{ secrets.KEY }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      port: ${{ secrets.PORT }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      script: |
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				        whoami
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				        ls -al
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				### 傳遞環境變數到 shell 腳本
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```diff
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				  - name: 傳遞環境變數
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    uses: appleboy/ssh-action@v1
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				+   env:
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				+     FOO: "BAR"
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				+     BAR: "FOO"
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				+     SHA: ${{ github.sha }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    with:
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      host: ${{ secrets.HOST }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      username: ${{ secrets.USERNAME }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      key: ${{ secrets.KEY }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      port: ${{ secrets.PORT }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				+     envs: FOO,BAR,SHA
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      script: |
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				        echo "I am $FOO"
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				        echo "I am $BAR"
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				        echo "sha: $SHA"
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				> _`env` 物件中的所有環境變數必須為字串。傳遞整數或其他型別可能導致非預期結果。_
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				---
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				## 🌐 代理與跳板機用法
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				你可以透過代理(跳板機)連線到遠端主機,適用於進階網路拓撲。
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```bash
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				+--------+       +----------+      +-----------+
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				| Laptop | <-->  | Jumphost | <--> | FooServer |
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				+--------+       +----------+      +-----------+
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				```
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				範例 `~/.ssh/config`:
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				```bash
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				Host Jumphost
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				  HostName Jumphost
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				  User ubuntu
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				  Port 22
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				  IdentityFile ~/.ssh/keys/jump_host.pem
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				Host FooServer
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				  HostName FooServer
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				  User ubuntu
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				  Port 22
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				  ProxyCommand ssh -q -W %h:%p Jumphost
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				```
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				**GitHub Actions YAML:**
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				```diff
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				  - name: SSH 代理指令
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				    uses: appleboy/ssh-action@v1
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				    with:
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				      host: ${{ secrets.HOST }}
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				      username: ${{ secrets.USERNAME }}
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				      key: ${{ secrets.KEY }}
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				      port: ${{ secrets.PORT }}
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				+     proxy_host: ${{ secrets.PROXY_HOST }}
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				+     proxy_username: ${{ secrets.PROXY_USERNAME }}
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				+     proxy_key: ${{ secrets.PROXY_KEY }}
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				+     proxy_port: ${{ secrets.PROXY_PORT }}
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				      script: |
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				        mkdir abc/def
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				        ls -al
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				```
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				---
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				## 🛡️ 安全最佳實踐
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				### 保護你的私鑰
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				密碼短語會加密你的私鑰,即使外洩也無法被攻擊者直接利用。請務必妥善保管私鑰。
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				 | 
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				 | 
				 | 
			
			 | 
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				```diff
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				  - name: SSH 私鑰密碼
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				    uses: appleboy/ssh-action@v1
 | 
			
		
		
	
		
			
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				    with:
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				      host: ${{ secrets.HOST }}
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				 | 
			
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				      username: ${{ secrets.USERNAME }}
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				      key: ${{ secrets.KEY }}
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				      port: ${{ secrets.PORT }}
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				+     passphrase: ${{ secrets.PASSPHRASE }}
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				      script: |
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				        whoami
 | 
			
		
		
	
		
			
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				        ls -al
 | 
			
		
		
	
		
			
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				```
 | 
			
		
		
	
		
			
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 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				### 主機指紋驗證
 | 
			
		
		
	
		
			
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 | 
			
		
		
	
		
			
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				 | 
			
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			 | 
			
				驗證 SSH 主機指紋有助於防止中間人攻擊。取得主機指紋(將 `ed25519` 換成你的金鑰型別,`example.com` 換成你的主機):
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```sh
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				ssh example.com ssh-keygen -l -f /etc/ssh/ssh_host_ed25519_key.pub | cut -d ' ' -f2
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				更新設定:
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```diff
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				  - name: SSH 私鑰密碼
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    uses: appleboy/ssh-action@v1
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				    with:
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      host: ${{ secrets.HOST }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      username: ${{ secrets.USERNAME }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      key: ${{ secrets.KEY }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      port: ${{ secrets.PORT }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				+     fingerprint: ${{ secrets.FINGERPRINT }}
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				      script: |
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				        whoami
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				        ls -al
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				---
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				## 🚨 錯誤處理與疑難排解
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				### 常見問題
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				#### 指令找不到(npm 或其他指令)
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				若遇到 "command not found" 錯誤,請參考 [此討論](https://github.com/appleboy/ssh-action/issues/31#issuecomment-1006565847) 了解互動式與非互動式 shell 差異。
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				許多 Linux 發行版的 `/etc/bash.bashrc` 包含如下內容:
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```sh
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				# If not running interactively, don't do anything
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				[ -z "$PS1" ] && return
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				```
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				請將該行註解掉或使用指令的絕對路徑。
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				---
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				## 🤝 貢獻
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				歡迎貢獻!請提交 Pull Request 改善 `appleboy/ssh-action`。
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				---
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				## 📝 授權
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				
 | 
			
		
		
	
		
			
				 | 
				 | 
			
			 | 
			 | 
			
				本專案採用 [MIT License](LICENSE) 授權。
 |