Blog : 291

My serial printer doesn't work. What shall I do?

Jan 13, 2011 | By Webtraffic Exchange | Peripherals | 0 Comments

The choice between a serial printer, parallel printer, or USB printer depends on various factors such as the specific requirements of the application, the type of data to be printed, and the available technology. Here are some cons...]

Apache mod_vhost_alias module fails to set DOCUMENT_ROOT

Jan 12, 2011 | By Webtraffic Exchange | Linux | 0 Comments

Mass virtual hosting using mod_vhost_alias or mod_rewrite module simplifies pattern-based virtual hosting. However, there is a major problem if your virtual host application makes use of the DOCUMENT_ROOT environment variable. Acc...]

How to create a htpasswd file with encrypted password?

Jan 11, 2011 | By Webtraffic Exchange | World Wide Web | 0 Comments

htpasswd is used to create and update the flat files used to store usernames and passwords for basic authentication of HTTP users. Resources available from the Apache HTTP server can be restricted to just the users listed in the fi...]

Freevps installation on CentOS 4.1

Jan 07, 2011 | By Webtraffic Exchange | Linux | 0 Comments

FreeVPS is a software package used to set up Virtual Private Servers (VPS) on Linux systems. A VPS is a virtualized server that acts as a dedicated server within a larger physical server. This guide explains how to install FreeVPS ...]

New mail notification in Outlook (Express)

Dec 13, 2010 | By Webtraffic Exchange | Emails | 0 Comments

When Outlook or Outlook Express announces new mail audibly, they look for and play the New Mail Notification Windows system sound. To change the way new mail is announced, you have to customize this system sound.

Struts Validator does not work

Nov 03, 2010 | By Webtraffic Exchange | Framework | 0 Comments

I spent a whole day trying to figure out a Struts validator problem. It's a web application containing three modules, but only one module does not perform Struts validation. The XML config files are perfectly fine, but no clue was ...]

SELinux Issue: Apache 403 permission denied on virtual hosts

Oct 11, 2010 | By Webtraffic Exchange | Linux | 0 Comments

Apache configuration is set up correctly with the right permissions, but the server throws a 403 error. Let's find out how we can troubleshoot this problem.

What is Wi-Fi and how secure is it?

Sep 07, 2010 | By Webtraffic Exchange | Networks | 0 Comments

Wi-Fi, (or Wireless Fidelity) is a wireless LAN technology that allows Wi-Fi equipped computers to connect to the Internet from anywhere within the range of a base station. Wi-Fi encompasses a family of specifications within the IE...]

SuSE package manager, zypper

May 21, 2010 | By Webtraffic Exchange | Linux | 0 Comments

I have recently acquainted with SuSE Linux, and I looked for a package manager that I can use to manage software packages. I started out with Yast, but it wasn't very good at providing resolutions to dependency problems. Someone re...]

Previsor PHP assessment test

Mar 11, 2010 | By Webtraffic Exchange | Development | 0 Comments

With more and more companies using pre-employment screening tests such as the one provided by Previsor, LAMP developers and PHP developers should hone their technical skills to prepare for their next career. Having taken one, the P...]