【最新玩法总结】CentOS下通过CertBot工具申请免费Let‘s Encrypt泛域名ssl证书【兼容泛域名的ssl,很强大哦】

官方安装步骤:https://certbot.eff.org/lets-encrypt/centosrhel7-nginx

centos7如何安装snapd:https://snapcraft.io/docs/installing-snap-on-fedora

参考:https://blog.csdn.net/qq_37769323/article/details/104124108

如果centos的内核为:kernel  3.10.0-123.4.2.el7.x86_64 则会报错:error: system does not fully support snapd: cannot read the value of fs.may_detach_mounts kernel
       parameter: open /proc/sys/fs/may_detach_mounts: no such file or directory

此情况请升级你的centos内核,参考:注意:升级内核之前必须先执行 yum update 更新所有的包,在参考https://linux.cn/article-8310-1.html方法,否则无法更新成功!【升级linux内核的方法参考:https://linux.cn/article-8310-1.html

旧的安装方式【定时器自动更新都是使用命令certbot -q renew】:https://blog.csdn.net/weixin_43343144/article/details/108312285

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