Install nginx server using following command
apt-get install nginxEdit nginx configuration and add server block inside html block. server {
listen 80;
server_name boost;
root /home/sandip/rails_app/public;
location / {
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect off;
if (-f $request_filename/index.html) {
rewrite (.*) $1/index.html break;
}
if (-f $request_filename.html) {
rewrite (.*) $1.html break;
}
if (!-f $request_filename) {
proxy_pass http://thin;
break;
}
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
Install thin server as gemsudo gem install thin
Building native extensions. This could take a while...
Building native extensions. This could take a while...
Successfully installed eventmachine-0.12.10
Successfully installed thin-1.2.7
2 gems installed
Install thin servicesudo thin install
Installing thin service at /etc/init.d/thin ...
mkdir -p /etc/init.d
writing /etc/init.d/thin
chmod +x /etc/init.d/thin
mkdir -p /etc/thin
Configure thin to start at system bootsudo /usr/sbin/update-rc.d -f thin defaults
Then put your config files in /etc/thinsudo /usr/sbin/update-rc.d -f thin defaults
update-rc.d: warning: thin stop runlevel arguments (0 1 6) do not match LSB Default-Stop values (S 0 1 6)
Adding system startup for /etc/init.d/thin ...
/etc/rc0.d/K20thin -> ../init.d/thin
/etc/rc1.d/K20thin -> ../init.d/thin
/etc/rc6.d/K20thin -> ../init.d/thin
/etc/rc2.d/S20thin -> ../init.d/thin
/etc/rc3.d/S20thin -> ../init.d/thin
/etc/rc4.d/S20thin -> ../init.d/thin
/etc/rc5.d/S20thin -> ../init.d/thin
Create thin configurationsudo thin config -C /etc/thin/<config-name>.yml -c <rails-app-root-path> --servers <number-of-threads> -e <environment>
</environment></number-of-threads></rails-app-root-path></config-name>
In my case,sudo thin config -C /etc/thin/rails_app.yml -c /home/sandip/rails_app --servers 3 -e production
>> Wrote configuration to /etc/thin/rails_app.yml
thin configuration file will look like
Start/stop/restart Nginx & thin server using command
sudo service nginx start|stop|restart
sudo service thin start|stop|restart
Josh Software 
Hi Sandeep,
I have installed Nginx & passenger on production server. It runs properly for few hours. When the site is not accessible, i checke the status using sudo /etc/init.d/nginx status and i got “nginx dead but subsys locked”. I searched for this error but did not get proper information. Can you please guide me.
Hi Sachin, There must be something like system restart or else so that you are seeing nginx as dead. I suggest to install `monit` to monitor nginx start/stop
`sudo apt-get install monit`