Vagrant: Connecting to a remote MySQL server always times out - mysql

Question

I set up a Vagrant VirtualBox box for Debian Wheezy following this instruction.
I installed nginx and php5-fpm on this virtual machine. I can access my guest machine via 127.0.0.1:8080 from host. It can also serve php files and phpinfo() works correctly, too.
However, when I try to access a remote MySQL server from a php file, the request always times out and I get a 504 Gateway Timeout error.
I noticed the followings.
In my nginx conf file, I have this line fastcgi_pass unix:/var/run/php5-fpm.sock;.
In /etc/php5/fpm/pool.d/www.conf, I have listen = /var/run/php5-fpm.sock.
php5-fpm.sock exists in /var/run/.
If I use 127.0.0.1:9000 instead of the socket, I still get the 504 Gateway Timeout error, but I get the error immediately without any waiting.
I added proxy_read_timeout 300; in my nginx conf, but this did not solve the issue.
My Vagrantfile
# -*- mode: ruby -*-
# vi: set ft=ruby :
Vagrant.configure("2") do |config|
# Every Vagrant virtual environment requires a box to build off of.
config.vm.box = "wheezy32"
config.vm.provision :shell, :path => "dev/bootstrap.sh"
# Create a forwarded port mapping which allows access to a specific port
# within the machine from a port on the host machine. In the example below,
# accessing "localhost:8080" will access port 80 on the guest machine.
config.vm.network :forwarded_port, guest: 80, host: 8080
# Create a private network, which allows host-only access to the machine
# using a specific IP.
# config.vm.network :private_network, ip: "192.168.33.10"
# Create a public network, which generally matched to bridged network.
# Bridged networks make the machine appear as another physical device on
# your network.
# config.vm.network :public_network
end
My nginx conf
server {
root /var/www/sites/mysite/public_html;
index index.html index.htm index.php;
# Make site accessible from http://localhost/
server_name localhost;
access_log /var/www/logs/mysite/mysite.access_log;
error_log /var/www/logs/mysite/mysite.error_log;
location / {
# First attempt to serve request as file, then
# as directory, then fall back to displaying a 404.
try_files $uri $uri/ /index.html;
# Uncomment to enable naxsi on this location
# include /etc/nginx/naxsi.rules
proxy_read_timeout 300;
}
location /doc/ {
alias /usr/share/doc/;
autoindex on;
allow 127.0.0.1;
allow ::1;
deny all;
}
location ~ \.php$ {
fastcgi_split_path_info ^(.+\.php)(/.+)$;
# NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini
# With php5-cgi alone:
# fastcgi_pass 127.0.0.1:9000;
# With php5-fpm:
fastcgi_pass unix:/var/run/php5-fpm.sock;
fastcgi_index index.php;
include fastcgi_params;
}
}
/var/www/logs/mysite/mysite.error_log
2013/06/16 23:47:27 [error] 2567#0: *23 upstream timed out (110: Connection timed out) while reading response header from upstream, client: 10.0.2.2, server: localhost, request: "GET /test.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock", host: "127.0.0.1:8080"
2013/06/16 23:47:27 [error] 2567#0: *23 rewrite or internal redirection cycle while internally redirecting to "/index.html", client: 10.0.2.2, server: localhost, request: "GET /favicon.ico HTTP/1.1", host: "127.0.0.1:8080"
Here is how I attempt to connect to the remote MySQL server.
require_once('/var/www/sites/mysite/includes/db_constants.php');
try {
$dsn = 'mysql:host=172.16.0.51;dbname=' . DB_NAME . ';charset=utf8';
$db = new PDO($dsn,DB_USER,DB_PASS);
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$db->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
} catch (PDOException $e) {
header('HTTP/1.1 500');
exit;
} catch (Exception $e) {
header('HTTP/1.1 500');
exit;
}
What am I missing?

Answer 1

As #cmur2 said, I was using the private IP to connect to the remove server, and that was why it did not work. I changed it to a public IP and now it is working correctly.