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icon: edit
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date: 2022-10-30
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category:
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- 系统配置
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- Linux
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headerDepth: 5
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---
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# 解决nginx SSL The plain HTTP request was sent to HTTPS port
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### 问题
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现在越来越多的网站要求http访问转为更为安全的https访问，很多使用nginx部署的前端应用可以很方便的使用反向代理来实现，切换后，用http访问就会出现 "The plain HTTP request was sent to HTTPS port"的错误页面。
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### 解决思路
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将此错误页面重定向到指定的https地址即可
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### 解决方法
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假设端口号是8443:
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```
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server {
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listen 8443 ssl;
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ssl_certificate ssl_cert.pem;
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ssl_certificate_key ssl_server.key;
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server_name your_domain.com;
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error_page 497 301 =307 https://$host:$server_port$request_uri;
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location / {
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....
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}
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}
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```
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另外，如果是自有域名，http和https端口都使用默认端口的话，只要将http的请求重定向到https即可
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```
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server {
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listen 80;
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listen 443 ssl;
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ssl_certificate ssl_cert.pem;
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ssl_certificate_key ssl_server.key;
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server_name your_domain.com;
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if ($scheme = http) {
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return 301 https://$host$uri?$args;
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}
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location / {
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....
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}
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}
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```
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### 参考链接
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[nginx_非标准端口_同端口_http_自动跳转_https](https://blog.csdn.net/qq_30665009/article/details/124464699)
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