如何解决Nginx的"proxy_pass 502 Bad Gateway"问题?错误 [英] How to resolve Nginx "proxy_pass 502 Bad Gateway" error

问题描述

我试图在我的nginx.conf文件中添加proxy_set_header.当我尝试添加proxy_pass并调用URL时，它将引发502 Bad Gateway nginx/1.11.1错误.

I have trying to add proxy_set_header in my nginx.conf file. When I try to add proxy_pass and invoke the URL it throws 502 Bad Gateway nginx/1.11.1 error.

不确定如何解决此错误:

Not sure how to resolve this error:

upstream app-server {
    # connect to this socket
    server unix:///tmp/alpasso-wsgi.sock;    # for a file socket
}

server {
    server_name <name>;

    listen 80 default_server;

    # Redirect http to https
    rewrite ^(.*) https://$host$1 permanent;
}

server {
    server_name <name>;

    listen 443 ssl default_server;

    recursive_error_pages on;

    location /azure{
        proxy_pass http://app-server;
    }

    ssl on;
    ssl_certificate      /etc/nginx/server.crt;
    ssl_certificate_key  /etc/nginx/server.key;
    ssl_client_certificate /etc/nginx/server.crt;
    ssl_verify_client optional;
}

推荐答案

proxy_pass也有类似的问题，如果您的Linux服务器使用SELINUX，那么您可能想尝试一下.

Had similar problem with proxy_pass, if your Linux server is using SELINUX then you may want to try this.

$ setsebool -P httpd_can_network_connect true

请参阅沃伦的答案: https://unix.stackexchange. com/questions/196907/proxy-nginx-shows-a-bad-gateway-error

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