nginx - 如何解决 Nginx "proxy_pass 502 Bad Gateway"错误

Question

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，它会抛出 502 Bad Gateway nginx/1.11.1 错误。

不确定如何解决此错误:

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;
}

Answer 1

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。

$ setsebool -P httpd_can_network_connect true

引用Warren的回答:https://unix.stackexchange.com/questions/196907/proxy-nginx-shows-a-bad-gateway-error