服务器自动部署Let's-Encrypt证书教程

安装Cerbot客户端

# Ubuntu/Debian
sudo apt update
sudo apt install certbot

# CentOS/RHEL
sudo yum install epel-release
sudo yum install certbot

#=====================================#
# 如果使用 Nginx/Apache 插件（可选）：
# Ubuntu/Debian: 
sudo apt install python3-certbot-nginx 或 python3-certbot-apache

# CentOS/RHEL: 
sudo yum install certbot-nginx 或 certbot-apache

操作命令及安装过程

1. 安装通配符 首次生成证书，在中文注释的地方，需要手动确认

> certbot certonly --manual --preferred-challenges=dns -d *.fscloude.cn

Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator manual, Installer None
Enter email address (used for urgent renewal and security notices)
 (Enter 'c' to cancel): fsbook@fscloude.cn
Starting new HTTPS connection (1): acme-v02.api.letsencrypt.org

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Please read the Terms of Service at
https://letsencrypt.org/documents/LE-SA-v1.5-February-24-2025.pdf. You must
agree in order to register with the ACME server. Do you agree?
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(Y)es/(N)o: y       # (注意: 手动 Y 确认)

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Would you be willing, once your first certificate is successfully issued, to
share your email address with the Electronic Frontier Foundation, a founding
partner of the Let's Encrypt project and the non-profit organization that
develops Certbot? We'd like to send you email about our work encrypting the web,
EFF news, campaigns, and ways to support digital freedom.
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(Y)es/(N)o: n      # (注意: 手动 y/n，是否同意让邮件接收新闻或广告)
Account registered.
Requesting a certificate for *.fscloude.cn
Performing the following challenges:
dns-01 challenge for fscloude.cn

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Please deploy a DNS TXT record under the name
_acme-challenge.fscloude.cn with the following value:

0r0ef0xxxxIxxxxxTxxxxjhWv4EZRxxxxxQZs     # (注意: 配置域名解析的TXT值)

Before continuing, verify the record is deployed.
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Press Enter to Continue
Waiting for verification...
Cleaning up challenges

IMPORTANT NOTES:
 - Congratulations! Your certificate and chain have been saved at:
   /etc/letsencrypt/live/fscloude.cn/fullchain.pem
   Your key file has been saved at:
   /etc/letsencrypt/live/fscloude.cn/privkey.pem
   Your certificate will expire on 2024-07-02. To obtain a new or
   tweaked version of this certificate in the future, simply run
   certbot again. To non-interactively renew *all* of your
   certificates, run "certbot renew"
 - If you like Certbot, please consider supporting our work by:

   Donating to ISRG / Let's Encrypt:   https://letsencrypt.org/donate
   Donating to EFF:                    https://eff.org/donate-le

更新证书

手动更新-通配符不能直接更新

# 使用此方式更新
certbot certonly --manual --preferred-challenges=dns -d *.fscloude.cn

# 更新时，重新执行此命令
1. certbot certonly --manual --preferred-challenges=dns -d *.fscloude.cn

2. 再 根据生成的 dns 解析 txt，手动加载 域名dns解析中

3. 回到命令行，回车确认以配置

4. nginx reload 配置

自动更新