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I just spun up a new Rackspace cloud server and ran the following:

apt-get install php5 nginx php-fpm

When I navigate to the IP address, I see the default Nginx message. I then copied my /etc/nginx/sites-available/default file from another working setup I have:

server { listen 80; server_name localhost; root /srv/www; index index.php; location / { try_files $uri $uri/ /controllers$uri.php; location ~ \.php$ { try_files $uri /index.php; fastcgi_split_path_info ^(.+\.php)(/.+)$; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; include fastcgi_params; } } }

I created index.php in /srv/www and started nginx and php-fpm:

/etc/init.d/nginx start /etc/init.d/php5-fpm start

I'm getting a 502 Bad Gateway error. Am I doing something wrong?

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5 Answers 5

Reset to default
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Since I can't add comment, I'll post it as an answer...

Check /etc/php5/fpm/pool.d/www.conf (or the file in there) if it's set to run on TCP or UNIX socket. Also check if the PHP is actually running. And look into the log files /var/log/php5-fpm.log or /var/log/php5-fpm/* and /var/log/nginx/* (depends on settings).

You should find the cause of the error there.

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    I opened /etc/php5/fpm/pool.d/www.conf and found listen = /var/run/php5-fpm.sock. I changed it to listen = 127.0.0.1:9000 and everything is working now. I totally forgot about that one-line configuration! Thanks! Commented Dec 13, 2012 at 21:04
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In my case the solutions was:

1- To Change the lister like @David:

sudo nano /etc/php/7.0/fpm/pool.d/www.conf

On the file search listen =, comment ...sock and add 127.0.0.1:9000

;listen = /var/run/php5-fpm.sock listen = 127.0.0.1:9000

2- Change on Nginx Site conf (Ex. /etc/nginx/sites-available/mysite.com) 

server { . . . location ~ \.php$ { . . . #fastcgi_pass unix:/var/run/php/php7.0-fpm.sock; fastcgi_pass 127.0.0.1:9000; . . .

3- Increment the timeout and max_children:

/etc/php/7.0/fpm/php.ini => default_socket_timeout = 60000 /etc/php/7.0/fpm/php.ini => pm.max_children = 20 /etc/php/7.0/fpm/pool.d/www.conf => request_terminate_timeout = 60000

4- Incremente timeout on /etc/nginx/nginx.conf:

keepalive_timeout 65000;

After Restart php-fpm and nginx:

sudo service php7.0-fpm restart sudo service nginx restart

I recommend before restart nginx to test if all is OK:

sudo service nginx configtest
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The bad gateway error means that the php process is responding with an error. Can you check your php error log? Also try placing a file test.php with <?php phpinfo(); ?> @ /srv/www/ and then try to hit that domain directly from the command line of your server ala:

curl http://127.0.0.1:9000/test.php;

Have you checked the obvious things like you have a file @ /srv/www/index.php? Have you run ps aux and grepped for nginx and php to make sure they are running?

How about running: netstat -an | grep LISTEN to make sure the php-fpm daemon is listening?

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  • I ran netstat -an | grep LISTEN and saw that nothing was listening on 127.0.0.1:9000. I opened /etc/php5/fpm/pool.d/www.conf and found listen = /var/run/php5-fpm.sock. I changed it to listen = 127.0.0.1:9000 and everything is working now. I thought this was the default setting and I forgot to check it. Thanks! Commented Dec 13, 2012 at 21:02
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In my case restart for fpm service worked. I only ran reload. Forgot that conf changes needs restart to apply.

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Check that your file in /etc/nginx/sites-available/<your site> lists the correct verion of PHP. I found config for php7.3 mismath my installed /run/php/php8.3-fpm so only had to update that config and reload nginx.

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