PC Charge Payment Server Client Installation


Ok, you already have at least 1 PC Charge (Server + Client) installed and trying to add additional licenses to your setup. To begin accepting credit card with the PC Charge, you'll need a PC Charge server.

[SOLVED] JumpLoader Bad Server Response error


We have been using a code-signed JumpLoader with PHP upload handler for several years without any issues. For those users with Java 7 update 21 and above, JumpLoader is now throwing Security Exception, Missing required Permissions manifest attribute in main jar: due to additional security mechanism built into Java.

Stock Investments


If you have extra cash on hand, one of the easiest way to generate passive income is investing your money. There are many investment options to choose from, but one of the preferred option is investing in stocks. Depending on your risk tolerance level, you may invest in low-risk dividend paying stocks, value stocks or even invest in high-growth high-risk stocks. Inflation averaged over 3.05% yearly since 1926, and keeping your money in Bank savings account would have earned you less than the inflation.

Basic Tenets of Credit Scoring


Maintaining a high credit score is one of the most important aspect of managing your personal finance. With a good credit score, you'll qualify for loans with lower rates. Credit scores range from 300 to 850 with national average score of about 692 (for FICO Score), and 723 as the median. Credit score of 720 is considered a good credit score. Credit score is not only used in qualifying loans, but it is also used to making hiring decisions and setting insurance premiums.

A guide to publishing a successful ebook


I have been writing technical articles since 2004, but never really thought about monetizing my work until two years ago. I own more than a dozen websites, and it really becomes hard to maintain all of them. In the 4th Quarter of 2010, I have started selling advertisements on Web Hosting Resources, and Geolocation websites and started generating high three-figure or low four-figure passive income from them on a monthly basis.

CSS Overview


Rational for using CSS

Cascade Style Sheet (CSS) is designed to remove style from the HTML documents, and store them separately for portability and reusability.

A CSS rule contains at least one selector and at least one declaration within a declaration block.

  • Each selector is separated by a comma (,), and a space used to cascade specificity.
  • A declaration is made up by name/value pair, and each declaration is separated by a semicolon (;)
  • A declaration block is defined by curly braces ({}).

There are three types of style sheets.

How to mitigate from DDoS with mod_security and mod_evasive on Centos 6?


For smaller scale DDoS attacks, Web Application Firewall (WAF) like Mod Security and Mod Evasive will mitigate DDoS attacks. For larger scale DDoS attacks, you may need to turn to professional DDoS mitigation service provider.

1. Install Mod Security Apache Module.

Getting started with nginx on Centos 6


Before getting started with nginx, it is recommended that you update PHP to the latest version.

Create a /etc/yum.repos.d/nginx.repo with the following content:

name=nginx repo

We are going to use php-fpm package to handle PHP fast-cgi.

How to install RHEL EPEL Repository on Centos


Keeping your Linux server up-to-date with the latest packages is no small task. One of the most popular repository for RHEL, Centos and Scientific Linux among others is EPEL, Extra Packages for Enterprise Linux. EPEL is a Fedora Special Interest Group that creates, maintains, and manages a high quality set of additional packages for Enterprise Linux.

If you wish to upgrade your PHP, MySQL and HTTP to the latest available binary packages, you may opt to install EPEL and remi repositories on your linux system.

On Centos 6.x:

How to mitigate from Apache Killer?


Apache is the most popular web server being used today. Apache Killer exploit which was released in August 2011, exploits a vulnerability in the Apache software by sending a crafted "Range" HTTP header. Apache Killer attack abuses the HTTP protocol by requesting URL content to be returned in a huge number of small chunks, which leads to hundreds of large memory fetches causing a server to run out of memory and crash. This vulnerability identified as CVE-2011-3192 was fixed in httpd-2.2.21.


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