nginx and php-fpm "Primary script unknown"

Question

Smells like a duplicate, I know, but I have now tried this Setup 5 Times over, and still I can't get this to work. Most of the configs are complicated with chroot and multi servers etc., but I have reduced this now to the simplest config possible. I want to understand how the fpm is setup with nginx in it's simplest form...Please bear with me.

Current Setup:

• CentOS 7 64 bit
• nginx 1.8.0 from Nginx repo
• php 5.6 from Remi php56

Addition to /etc/nginx/conf.d/default.conf

 location ~ \.php$ { fastcgi_pass unix:/var/run/php-fpm/php-fpm.sock; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; include fastcgi_params; } 

Addition and changes to /etc/php-fpm.d/www.conf

listen = /var/run/php-fpm/php-fpm.sock listen.owner = nginx listen.group = nginx listen.mode = 0660 

Added the file /usr/share/nginx/html/info.php

<?php phpinfo();?> 

Started both services

systemctl start nginx.service systemctl start php-fpm.service 

and Finally tail -f /var/log/nginx/error.log

2015/11/09 12:18:01 [error] 28638#0: *1 FastCGI sent in stderr: "Primary script unknown" while reading response header from upstream, client: xx.xxx.xxx.xxx, server: localhost, request: "GET /info.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php-fpm/php-fpm.sock:", host: "xxx.xx.xxx.xx"

So it seems that the FPM can't find the script, this much I have managed to understand, but according to the config, the Script file name is the document root and the script name. Script name is info.php, and according to the default config the root path is :

 location / { root /usr/share/nginx/html; index index.html index.htm; } 

Thus, if I concatenate this manually, I get

/usr/share/nginx/html/info.php 

and this file exist

#ls -lah /usr/share/nginx/html/ total 20K drwxr-xr-x 2 root root 4.0K Nov 9 12:35 . drwxr-xr-x 3 root root 4.0K Apr 21 2015 .. -rw-r--r-- 1 root root 537 Apr 21 2015 50x.html -rw-r--r-- 1 root root 612 Apr 21 2015 index.html -rw-r--r-- 1 root nginx 20 Nov 9 10:45 info.php 

Can anybody give me an explanation why this is not working ?

Answer 1

$document_root needs to pick up its value from a root directive at the same location or in a parent container. You seem to have root defined in a sibling container. Move root to the server container.