Question

Node.js - Nginx 502 Bad Gateway on POST/PUT

  • Posted October 25, 2014

Hi,

I have a MEAN app and on localhost works fine.

I have a CentOs droplet with node.js and nginx, but that i make for example a submit form by POST or PUT, console returns “502 Bad Gateway”.

Each time i restart nginx, shows: nginx: [emerg] unknown directive “proxy_http_version”

My conf in nginx:

server {
    listen 80;
    server_name mysub.domain.com
    location / {
        proxy_pass http://localhost:3003;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
        proxy_connect_timeout       300;
        proxy_send_timeout          300;
        proxy_read_timeout          300;
        send_timeout                300;
    }
}

My niginx version is 1.0.15

Thanks for now. =D

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Usually when shown 502 error is the following: Nginx running as proxy for Apache web server. Nginx running with PHP-FPM daemon. Nginx running with other services as gateway. Bad buffering/timeout configuration.

Are you running Nginx using PHP-FPM?


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This question was answered by @vegardx

Since you’re doing proxypass to localhost it will be whatever resolves to localhost in your /etc/hosts-file that makes it bind to that interface. Change out localhost with 127.0.0.1 in your proxypass and you’ll pass it only to 127.0.0.1.

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