technology-note/linux/软件安装使用/certbot免费ssl证书申请.md
2022-01-21 20:55:21 +08:00

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---
id: "20220121"
date: "2022/01/21 10:38:05"
title: "免费ssl证书看这篇就够了(单域名/泛域名/自动续期)"
tags: ["linux", "nginx", "ssl", "certbot", "泛域名"]
hid: true
index_img:
banner_img:
categories:
- "linux"
- "软件使用"
---
不知道你发现了没有如果使用chrome浏览器访问某些网站在网址左边会有如下的安全提示
![不安全](https://qiniupic.fleyx.com/blog/202201212029672.png)
原因就是因为此网站协议为http未进行ssl加密。目前全球网站都已进入https时代因此非常有比较将自己的站点升级为`https`.
个人使用没必要付费购买ssl证书目前有不少免费ssl证书