As far as I can remember, to prevent hotlink in Drupal is not that easy. If you search website to look for prevent hotlink, you will find a lot of them to use with .htaccess file. But those are not for Drupal. You can't just use it in Drupal .htaccess file, that won't work. However, I have a set of code that work great. Actually, I have this code long time ago but I can't remember where I got it from. Thanks for the guy that provide it. Too bad that I didn't save link at that time.

So, now, here is what we have to do :

When you do a reverse proxy in which Nginx will be the one who listen the traffic and forward anything needs to be process through PHP to Apache. With this, Apache will always receive an IP from Nginx server (or I should say localhost / 127.0.0.1 / local IP), not the real IP that user uses. In order to let Apache knows what is real user IP, we need to install mod_rpaf.

Just copy and paste code below into SSH :

I try to use Nginx as a reverse proxy to see if there is any improvement over Apache Worker MPM or not. I found an instruction from DirectAdmin webboard but it's quite old. So, I just tried to follow their steps and do some modification to match what I have read. Below is what I did

1. You need to compile Nginx. Nginx version 0.8.54 is the lastest stable release as of today. So, just copy and paste below code into your SSH

I just tried to install CentOS on local machine and found that when I ran 'yum install', it will always go to specific mirror url that is so slow. I know there is some cache to tell yum to use it but I don't know where on it. Try to search in google but many problem comes up that didn't relate to what I want to fix. Until I found a link below tell me where is yum cache file located. Just run command below :

I've heard about PHP-FPM about a month ago from DirectAdmin webboard. Then, a few weeks ago, I had a couple websites that I need to make it run faster. After tried to do many things with it like ... to use mod_fcgid / XCache / Memcached, I feel like there was something in XCache since "Page execution time" is quite high. Then, I remember that I've read from many websites that XCache doesn't really work with mod_fcgid. From the technical point, all of them explained it clearly to understand.

<?php
print l(t('Add Comment'), 'comment/reply/' . $node->nid, array('fragment' => 'comment-form'));
?>

<?php echo theme('pager', null, 1, 0, array(), 9); ?>