---
title: "HTTP & HTTPS & Secure Connection"
author: "Perrin Yong"
author_profile: https://www.pystone.net/profile/
published_by: "Perrin Yong"
canonical: https://www.pystone.net/notes/http-https-secure-connection/
type: note
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visibility: public
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source_path: "10-计算机、信息技术与工程/01-系统基础与网络安全/网络工程/HTTP & HTTPS & Secure Connection.md"
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# HTTP & HTTPS & Secure Connection

# HTTP & HTTPS & Secure Connection

> 创建时间：2021/4/27 18:18

* 背景知识
  * 问题

## 背景知识

HTTP or HTTPS are protocols which are basically a set of rules for determining **how web pages are transmitted** from the server (where your website is located) to the browser.

HTTPS is a secure protocol based on HTTP and is widely used as it has a number of significant advantages including improved SEO and a high level of security.

One of these requirements needed to make a website work with an HTTPS connection is that you must have a valid **SSL certificate installed** and configured correctly. Invalid SSL certifications can cause problems preventing users from accessing websites. For example, the “Your Connection is Not Private” error.

## 问题

![assets/HTTP-&-HTTPS-&-Secure-Connection__Image.png](/media/f2cbd2852e18c034bf9a.png)

![assets/HTTP-&-HTTPS-&-Secure-Connection__Image_1.png](/media/9c16cb6fbb2bcc497b0c.png)

![assets/HTTP-&-HTTPS-&-Secure-Connection__Image_2.png](/media/f2cbd2852e18c034bf9a.png)