Technology Insights

iPhone iPod Touch: Multiple Apps Open at the Same Time

When I first started researching this it appeared the iPhone and iPod Touch might not be able to run multiple processes, but I was starting to wonder how in the world could that be. This does not appear to be the case though and instead it appears that Apple has set forth some fairly strict guidelines to keep developers from developing applications that eat up tons of RAM by allowing them to run wild with background processes. The iPhone has 128MB of RAM thus it could be chopped down to nothing very quickly by multiple applications running at the same time.

Technology Insights

Easy Management of Nagios Configuration Files with Web Based GUI Monarch

Nagios is a great solution for monitoring hosts, networks, and services on one or more networks. Nagios will monitor as many services as needed per device and then will send an alarm if one or more services has an issue. By default Nagios monitors a bunch of services such as ICMP, HTTP, etc. but can easily be expanded by theĀ use of plugins and other community based open source development projects where code is developed for a specific need and then shared with the development community.

Technology Insights

How to Add a New Define Pages Page to the Information SideBox in ZenCart

This article describes how to add a link to the Information sidebox that links to a new page in the defined pages section. You will be required to create files, modify files, and insert SQL code into the MySQL database.

In the instructions below yourpage or YOURPAGE is the title of the page you are adding. For instance if you wanted to add one called technology you would replace YOURPAGE and yourpage with technology and TECHNOLOGY. The actual file would be technology.php.

1. Modify File:

Modify the following file <zencart-root>/includes/filenames.php by adding the following two lines of code:

php

  1. define('FILENAME_DEFINE_YOURPAGE', 'define_yourpage');
  2. define('FILENAME_YOURPAGE', 'yourpage');

above…

php

  1. define('FILENAME_DEFINE_PRIVACY', 'define_privacy');
  2. define('FILENAME_PRIVACY, 'privacy');

…respectively.

Technology Insights

CentOS 5.2 /etc/sysconfig/networking

The file located in /etc/sysconfig/networking/profiles are created by the GUI network interface management tool. These files should not be edited manually and when changes need to be made they should be made directly to the files as shown below. CentOS 5 is easy to get around from the command line and it is beneficial to understand each of the below files if you are going to manage a server.

Need to make a change to hostname?
First modify /etc/sysconfig/network and modify the following line:
HOSTNAME=your.hostname.here