Author: Prabhu Balakrishnan
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Securing your server against DNS Amplification (DoS) attacks
In recent times, it seems that there is a new form of Dos (denial of service) attack, targeted towards dns servers. The attacker sends a dns query packet with a spoofed IP and your server will keep on sending responses to the victim. More information about this attack is documented in this page. If you…
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Credit card expiring with Paypal?
If you have already added your credit card to paypal, then one day it is most likely to expire. All credit cards do have expiry date (once in every 3 yrs), which after that your credit card company will automatically renew and send you the new card (with new secure code/CCV and expiry date). This…
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Preventing Brute Force Attacks on FTP server
I have seen in recent times, there are lot of brute force login failure attempts being bombarded on my ftp server running FTP service on port 21. Every minute or so, my log file shows hundreds of login failure attempts per hour, with every combination. Ever since from then i have been on a search…
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HOWTO: Enable passive mode in FTP server with CSF firewall
If you running a FTP server (Pureftp/Proftp) with a CSF firewall (very importantly in VPS or virtuozzo etc), it is very important to to enable passive mode, because this mode, works best for ftp clients protected by firewall since the client initiates the connection. If you dont enable this mode in VPS you might encounter…
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Tutorial: How to write a WordPress Plugin?
WordPress is not just a blogging platform and it is such a powerful CMS with unlimited capabilities, besides having a huge user base. Almost anything can be scripted with wordpress. You can extend wordpress either by means of plugin or by a theme. In this tutorial, i will show you how to write a Hello…
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How to manually upgrade wordpress from older versions
If you have a good old version of version of wordpress, then most probably you dont have automatic upgrade option and you have to do the upgrade manually. All new versions of wordpress have automatic upgrade option where you have to go to wp-admin > Tools > upgrade and all done with one click. Here…
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Where does wordpress store htaccess rewrite rules?
If you are thinking for one second the rules are stored in .htaccess in the wordpress folder, you are totally wrong. Infact these rules are stored in mysql database in the wp_options table under rewrite_rules field. Checkout this site for complete list of wordpress 2.x rewrite rules Although it is common for most php related…
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How to create 3D transform of Images in Photoshop
I have often wondered how to create 3D images of simple graphic images or photos that i have seen in many blogs and websites. Even examples of source code or screeshots of themes look amazing with 3d transformations. Creating 3d transformations for your 2d images is nothing but projection at various anges (transformation) is amazingly…
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Can xbox 360 play games without hard drive?
Can xbox 360 play games without hard drive? I was asking this question to myself and so much confusion got cleared only after buying arcade version of the xbox console. Answer: Yes, you can play games from the disc without hard drive offline but cannot download games online and play it. Don’t forget that you…
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Fix -> Xbox 360 display mode not supported HDMI problem
I just bought home a new Xbox 360, hooked up with my HDMI cable and the display worked perfectly. Then started the nightmare. I did a latest update with the console and display went blank and every time i started the 360 it gave “Display mode not supported” and there was no display. Even resetting…