Bad gateway error caused by php-fpm on CEntos 8 / NGINX only on second server block

Posted July 8, 2020 2.3k views
NginxPHPCentOS 8

I have installed the whole LEMP stack sucessfully on my Centos 8 droplet, everything checks out. I have a DB, I am running php woth php-fpm, all is swell.

Except that I have created two new server blocks and there whenever I try to access a php file through a broswer, I get a 502 Bad Gateway error.

I have these configs for the server blocks:

server {
    listen 443;
    listen [::]:443;

    root /usr/share/nginx/;

   location / {
       index index.html index.htm index.php;


    access_log /var/log/nginx/;
    error_log /var/log/nginx/;

   location ~ \.php$ {
      include /etc/nginx/fastcgi_params;
      fastcgi_index index.php;
      fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

    ssl_certificate /etc/letsencrypt/live/; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/; # managed by Certbot

The error in the log file is:
2020/07/08 19:33:02 [error] 571#0: *1 connect() failed (111: Connection refused) while connecting to upstream, client:, server:, request: “GET /info.php HTTP/1.1”, upstream: “fastcgi://”, host: “”

I have restarted all services, and as I said, on the primary (original) server block php files are parsed perfectly. ANy ideas?

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2 answers

whats the output of command ss -ntlp ?

You should see the php-fpm service running with port 9000

Well, actually I don’t.
State Recv-Q Send-Q Local Address:Port Peer Address:Port

LISTEN 0 128*

LISTEN 0 128*

LISTEN 0 128*

LISTEN 0 128*

LISTEN 0 80 :3306 *:

LISTEN 0 128 [::]:111 [::]:*

LISTEN 0 128 [::]:80 [::]:*

LISTEN 0 128 [::]:22 [::]:*

LISTEN 0 128 [::]:443 [::]:*

Strange, because then how is it possible that on the other “virtual host” php is parsed perfectly?