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Let’s Encrypt 使用 ACME 協定，來驗證你所申請憑證中的網域控制權。為了取得 Let’s Encrypt 憑證，你需要選擇一個 ACME 客戶端軟體。
下列的 ACME 客戶端由第三方提供，Let’s Encrypt 沒有權控制或審核他們，因此我們沒有辦法保證他們安全與可靠性。
你也可以選擇網頁版的 ACME 客戶端，但是我們沒有在這裡列出來，因為使用手動更新的工作流程，可能會造成不好的使用者經驗，並且增加憑證過期的風險。
推薦使用：Certbot
我們推薦你大多數人所使用的客戶端 Certbot。它可以替你取得並安裝憑證；它的操作簡單、適用於多個作業系統，並且有完整的文檔。
如果 certbot 不符合你的需求，或是你想嘗試使用其它的客戶端，那麼你可以選擇下方所列出的客戶端，我們按照程式語言或使用環境分類。
Bash
- GetSSL (bash, also automates certs on remote hosts via ssh)
- acme.sh (Compatible to bash, dash and sh)
- dehydrated (Compatible to bash and zsh)
- ght-acme.sh (batch update of http-01 and dns-01 challenges is available)
- bacme (simple yet complete scripting of certificate generation)
- wdfcert.sh (Only supports DNS-01 challenges and ECDSA-384 bit keys for both accounts and certificates, native Joker DNS support including wildcard plus roor domain support for single-TXT-record DNS providers)
C
- OpenBSD acme-client
- uacme
- acme-client-portable
- Apache httpd Support via the module mod_md.
- mod_md Separate, more frequent releases of the Apache module.
- CycloneACME (client implementation of ACME dedicated to microcontrollers)
C++
- acme-lw
- esp32-acme-client allows IoT devices to get certificates
Clojure
Configuration management tools
- Ansible acme_certificate module
- Terraform ACME Provider
- Ansible collection: acme (ACME V2 integration with acme_certificate module. Supports multiple providers for challenges)
D
Domino
- CertMatica (ACME certificate installation and renewals for HCL Domino™ servers)
- HCL Domino (Full ACME V2 flow integration for HCL Domino™ servers)
Docker
Go
- Caddy
- Lego
- acmetool
- Lets-proxy2 (Reverse proxy to handle https/tls)
- autocert
- Traefik
- ACMEz
- Step CLI
- J8a (Reverse proxy for JSON APIs with auto-renewing TLS 1.3)
- certmanager (Supports certificate sharing across instances/pods and split-horizon DNS with acme-proxy)
HAProxy
Java
Kubernetes
Lua
- Mako Server's ACME Plugin The plugin’s main objective is to provide certificates for servers on private networks.
Microsoft Azure
- Azure WebApp SSL Manager (Serverless, Compatible with any App Service, requires Azure DNS)
- App Service Acmebot (Compatible to Azure Web Apps / Functions / Web App for Containers)
- Key Vault Acmebot (Work with Azure Key Vault Certificates)
- Az-Acme (The simplest ACME Issuer for Azure Key Vault)
nginx
Node.js
- Greenlock for Express.js
- acme-http-01-azure-key-vault-middleware (Express middleware for storing certificates securely on Azure Key Vault)
OpenShift
Perl
- acme (Simple json config, autogen keys, issue cert, refresh cert, apache/nginx integration)
- Crypt::LE
PHP
- kelunik/acme-client
- Hiawatha
- FreeSSL.tech Auto
- Yet another ACME client
- itr-acme-client PHP library
- Acme PHP
- RW ACME client
Python
- ACME Tiny
- simp_le
- acmebot
- sewer
- acme-dns-tiny (Python 3)
- Automatoes ACME V2 ManuaLE replacement with new features
- acertmgr
- acme-cert-tool
- serverPKI PKI for internet server infrastructure, supporting distribution of certs, FreeBSD jails, DNS DANE support
- acmetk acmetk is an ACMEv2 proxy to centralize certificate requests and challenges within an organisation and direct them using a single account to Let’s Encrypt or other ACMEv2 capable CA’s.
Ruby
- unixcharles/acme-client
- acme-distributed
- Combine-acme: Generate and upload crt to CloudFlare(enterprise) and GCP.
Rust
Windows / IIS
- Crypt::LE (previously ZeroSSL project)
- win-acme (.NET)
- Posh-ACME (PowerShell)
- Certes
- ACME-PS (PowerShell)
- kelunik/acme-client (PHP)
- Certify The Web (Windows)
- WinCertes Windows client
- GetCert2 (simple GUI - .Net, C#, WPF, WCF)
- TekCERT (GUI, CLI)
Server
- Certera (Crossplatform PKI to centrally manage keys and certificates)
Libraries
4D
- acme component ACME Client v2 for 4D v18+
C++
- acme-lw
- esp32-acme-client allows IoT devices to get certificates
D
Delphi
- DelphiACME (Embarcadero Delphi)
Go
- Lego
- acmetool
- eggsampler/acme
- ACMEz
- certmanager (Supports certificate sharing across instances/pods and split-horizon DNS with acme-proxy)
Java
.NET
- Certes (.NET Standard)
- PKISharp/ACMESharpCore (.NET Standard)
Node.js
Perl
- acme (Simple json config, autogen keys, issue cert, refresh cert, apache/nginx integration)
- Crypt::LE
- Net::ACME2
- wdfcert.sh (Only supports DNS-01 challenges and ECDSA-384 bit keys for both accounts and certificates, native Joker DNS support including wildcard plus roor domain support for single-TXT-record DNS providers)
PHP
- kelunik/acme
- ACMECert PHP library
- LEClient PHP library
- le-acme2-php library
- stonemax/acme2 PHP client
- Acme PHP Library
Python
- Python 模組 acme 是 Certbot 的一部分，但它也被其他許多客戶端所使用，請且在 PyPI, Debian, Ubuntu, Fedora 和其他的 Linux 版本中作為獨立軟體提供。
Ruby
Rust
整合了 Let’s Encrypt 的專案
- Aegir
- Aerys
- Apache HTTP Server
- ApisCP
- Caddy
- CentminMod LEMP Stack
- Certhub
- Cloudfleet
- Cloudron
- cPanel
- Froxlor Server Management Panel
- Gitlab
- ISPConfig
- LiveConfig Hosting Control Panel
- Mail-in-a-Box
- Own-Mailbox
- pfSense
- Plesk Web Hosting Control Panel
- Ponzu CMS
- ruxy
- SWAG - Secure Web Application Gateway
- Synchronet BBS System
- Vesta Control Panel
- Virtualmin Web Hosting Control Panel
- WildFly Application Server
- Zappa
加入你所開發的客戶端或專案
如果你發現 ACME 客戶端或專案整合了 Let’s Encrypt，但是沒有出現在列表中，請在本網站的 Github 中，更新 data/clients.json 檔案，並透過提出 pull request 告知我們。
在你提出 pull request 之前，請先確認：
- 你的客戶端尊重 Let’s Encrypt 商標
- 你的客戶端不是使用網頁版，並且支援自動更新憑證
- 請將你的客戶端名稱透過添加到該分類的最後面（如果該軟體支援 ACMEv2 協定，別忘了添加 “acme_v2”）
- 請將
clients.json文件上方中的lastmod日期更新