使用 certbot 可以很方便、快捷的通过 Let’s Encrypt 申请免费的证书，并部署到 nginx 中，开启 https
在 Linux 通过命令安装
安装 Nginx
sudo apt install nginx安装 certbot
先安装 snap
sudo apt install snap再通过 snap 安装 certbot
sudo snap install --classic certbot
sudo ln -s /snap/bin/certbot /usr/bin/certbot运行 certbot 给 Nginx 安装证书
sudo certbot --nginx设置邮箱，输入自己的邮箱
Enter email address (used for urgent renewal and security notices)
(Enter 'c' to cancel): [email protected]确认条款
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Please read the Terms of Service at
https://letsencrypt.org/documents/LE-SA-v1.3-September-21-2022.pdf. You must
agree in order to register with the ACME server. Do you agree?
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(Y)es/(N)o: y订阅邮件
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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: y 签发域名，输入自己的域名
Account registered.
Please enter the domain name(s) you would like on your certificate (comma and/or
space separated) (Enter 'c' to cancel): ichochy.com证书部署成功
Successfully received certificate.
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Deploying certificate
Successfully deployed certificate for ichochy.com to /etc/nginx/sites-enabled/default
Congratulations! You have successfully enabled HTTPS on https://ichochy.com检测 Nginx 证书部署
访问 https://ichochy.com，已经自动跳转到 HTPPS，证书已经成功部署到 Nginx 中，并成功配置并重启成功
Nginx 配置文件 /etc/nginx/sites-enabled/default