Home / server / Questions / 1065118
Accepted
CrazyRabbit
Asked: 2021-05-30 23:58:37 +0800 CST

nginx proxy to apache, can't enable keepalive (403)

  • 772

My setup is :

upstream http_backend {
    server 127.0.0.1:81;
    keepalive 16;
}

server {
    ...

    location / {
        proxy_pass http://http_backend;
        proxy_http_version 1.1;
        proxy_set_header Connection "";
    }
}

But I get a 403 on every page.

If I comment #proxy_set_header Connection ""; pages are loaded. But accordingly to nginx docs, it should be cleared:

For HTTP, the proxy_http_version directive should be set to “1.1” and the “Connection” header field should be cleared:

Is there anything i must set at Apache side so i can set keeplive between nginx (proxy and ssl offloader) and apache (mpm_event and php-fpm)? KeepAlive is set to On already.

nginx reverse-proxy apache-2.4

1 Answers

  1. Best Answer

    Ok, the error was I was setting some headers in the server block, outside location, so these were cleared by the new proxy_set_header directive. I must include them on the location block, like:

    server {
    ...

    location / {
        proxy_pass http://http_backend;
        proxy_http_version 1.1;
        proxy_set_header Connection "";
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
}
    • 0