Let’s Encrypt
最近给域名安装免费的https证书 Let’s Encrypt，发现跟之前的安装方式不太一样，这里记录一下安装过程
https://certbot.eff.org/instructions?ws=nginx&os=centosrhel7
https://eff-certbot.readthedocs.io/en/latest/using.html#nginx
https://snapcraft.io/docs/installing-snap-on-centos
步骤cat /etc/os-release or lsb_release -a 查看系统版本号 我的是centos7 其他版本可以从 https://certbot.eff.org/instructions 这里找到sudo yum install epel-releaseyum updatesudo yum install snapdsudo systemctl enable --now snapd.socketsudo ln -s /var/lib/snapd/snap /snap报错 centos 安装 snapd 报错: too early for operation, device not yet seeded or device model not acknowledgedhttps://www.cnblogs.com/Simoon/p/18060934sudo setenforce 0sudo snap install --classic certbotsudo ln -s /snap/bin/certbot /usr/bin/certbotcertbot certificates // 查看安装哪些证书sudo certbot --nginx // 根据nginx配置自动生成证书 也可以只生成证书，自己修改域名配置sudo certbot renew --dry-run // 验证是否自动更新证书
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