⚠️ After the installation, you must close the current terminal and reopen it to make the alias take effect.
✅ You are ready to issue certs now!
Show help message:
acme.sh -h
🔏 Verify a Release
Release tags from 3.1.5 on are signed with the maintainer's SSH key. The
signing happens on the maintainer's machine, so the private key is never
available to CI. The public half is allowed_signers in
this repository. From a clone:
The signature covers the tag object, which pins the commit and therefore the
whole tree, so a good signature verifies every file at that release and no
separate tarball checksum is needed. Build a tarball from the verified tag:
The parameter /home/wwwroot/example.com or /home/username/public_html or /var/www/html is the web root folder where you host your website files. You MUST have write access to this folder.
Second argument "example.com" is the main domain you want to issue the cert for.
You must have at least one domain there.
You must point and bind all the domains to the same webroot dir: /home/wwwroot/example.com.
The certs will be placed in ~/.acme.sh/example.com/
🔄 The certs will be renewed automatically every 30 days.
After the cert is generated, you probably want to install/copy the cert to your Apache/Nginx or other servers.
⚠️ IMPORTANT: You MUST use this command to copy the certs to the target files. DO NOT use the certs files in ~/.acme.sh/ folder — they are for internal use only, the folder structure may change in the future.
Only the domain is required, all the other parameters are optional.
The ownership and permission info of existing files are preserved. You can pre-create the files to define the ownership and permission.
Install/copy the cert/key to the production Apache or Nginx path.
🔄 The cert will be renewed every 30 days by default (configurable). Once renewed, the Apache/Nginx service will be reloaded automatically.
⚠️ IMPORTANT: The reloadcmd is very important. The cert can be automatically renewed, but without a correct reloadcmd, the cert may not be flushed to your server (like nginx or apache), then your website will not be able to show the renewed cert.
4️⃣ Use Standalone Server to Issue Certificate
🔐 Requires root/sudoer or permission to listen on port 80 (TCP)
⚠️ Port 80 (TCP) MUST be free to listen on, otherwise you will be pr
acme.sh (acmesh-official/acme.sh)
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acme.sh 是一个纯 Unix Shell 脚本客户端，使用 ACME 协议，可以从 Let's Encrypt 或 ZeroSSL 等证书颁发机构自动申请、续期并安装免费的 SSL/TLS 证书。