Xirrus Wi-Fi Monitor Detects Wireless Networks

Xirrus Wi-Fi Monitor is a cross-platform Wi-Fi tool that displays available networks on a very cool radar map. More specifically, the application searches for Wi-Fi networks, displays strength, detects rogue access points, and helps you tweak your network for the best signal. The downside: Xirrus Wi-Fi monitor is only available in widget/gadget/desklet form. That means that in order to use it, on XP and OS X you have to install the Yahoo Widget framework, on Linux you have to install the Desklet framework, and on Vista you'll need to re-enable the sidebar gadgets. That's all somewhat of a bummer considering the whole widget craze generally went out the door circa-2006. However, Xirrus remains a worthwhile application with an unquestionably fun execution.

PostgreSQL is an object-relational database developed on the Internet by a group of developers spread across the globe. It is an open-source alternative to commercial databases like Oracle and Informix. PostgreSQL was originally developed at the University of California, Berkeley. In 1996, a group began development of the database on the Internet. They used e-mail to share ideas and file servers to share code. PostgreSQL is now comparable to proprietary databases in terms of features, performance and reliability. It has transactions, views, stored procedures and referential integrity constraints. It supports a large number of programming interfaces, including ODBC, Java (JDBC), Tcl/Tk, PHP, Perl and Python. PostgreSQL continues to improve at a tremendous pace thanks to a talented pool of internet developers.

Do you ever think to change the Gmail theme/skin? Or are you wondering whether it is possible or not? If yes, this blog will show you how to do this. Yea, as you see the "Gmail loading" screen below, you might interested to start changing your Gmail!

What is DHCP?

Dynamic Host Configuration Protocol (DHCP) is network protocol for automatically assigning TCP/IP information to client machines. Each DHCP client connects to the centrally-located DHCP server which returns that client's network configuration including IP address, gateway, host name, and DNS servers.

Why do we need DHCP server?

DHCP is useful for fast delivery of client network configuration. When configuring the client system, the administrator can choose DHCP and not have to enter an IP address, netmask, gateway, or DNS servers. The client retrieves this information from the DHCP server. DHCP is also useful if an administrator wants to change the IP addresses of a large number of systems. Instead of reconfiguring all the systems, he can just edit one DHCP configuration file on the server for the new set of IP address. If the DNS servers for an organization changes, the changes are made on the DHCP server, not on the DHCP clients. Once the network is restarted on the clients (or the clients are rebooted), the changes will take effect.

Unicode support

When you're creating a website, you hardly have to think about the character encoding. You only have to decide how you tell the user agent what encoding you're using, but with a little help of Apaches .htaccess file, you only have to make that decision once. However, if you're building an application, the character encoding might become a problem. Thats where PHPs new Unicode support comes in handy. With its support, PHP can automatically encode and decode the in and output of the script making sure both the database and the user agent receive the encoding they need without the need of any extra functions for the encoding conversion.

The big cleanup

PHP is already being used for a long time, creating a big user base, but also a lot of bad habits. Bad habits often result in slow scripts or even security holes. But these bad habits are not always the cause of the developer. Of course, he (lets just assume were dealing with a stereotype developer here for simplicity's sake) is the one who's using it in his application, but sometimes the developer is not even aware hes using it.

I have been searching for a full-featured and platform independent HylaFAX client and finally i found YajHFC (Yet another Java HylaFAX Client). This application is written completely in Java, therefore it can be use for both Linux and Windows environment. YajHFC has the following features:

• Faxing documents in PostScript, PDF, JPEG, PNG and GIF format
• Polling faxes
• Support for generating cover pages from templates
• Viewing sent and received faxes
• Phone book
• Visible table columns may be selected in a dialog
• Runs under Windows, Linux and Mac OS X (and probably other platforms if a suitable JRE is available)
• Supports four languages: English, French, German and Spanish

This is a guide line to install Perle Multimodem Fax board driver (PCI-RAS V.92) on Ubuntu / Debian. For more information about this product, please visit at http://www.perle.com.

Become super user and install build-essential, linux-headers packages

user@server:~# sudo su -
Password:

root@server:~# apt-get install build-essential linux-headers-`uname -r`

What is HylaFAX?

HylaFAX is an enterprise-class system for sending and receiving facsimiles as well as for sending alpha-numeric pages.

The software is designed around a client-server architecture. Fax modems may reside on a single machine on a network and clients can submit an outbound job from any other machine on the network. Client software is designed to be lightweight and easy to port.

HylaFAX is designed to be very robust and reliable. The fax server is designed to guard against unexpected failures in the software, in the configuration, in the hardware and in general use. HylaFAX can support multiple modems and a heavy traffic load.

If you expect to send more than a few facsimiles a day, then HylaFAX is the fax package for you!

What is Java Development Kit (JDK)?

The Java Runtime Environment (JRE) provides the libraries, the Java Virtual Machine, and other components to run applets and applications written in the Java programming language. In addition, two key deployment technologies are part of the JRE: Java Plug-in, which enables applets to run in popular browsers; and Java Web Start, which deploys standalone applications over a network. It is also the foundation for the technologies in the Java 2 Platform, Enterprise Edition (J2EE) for enterprise software development and deployment. The JRE does not contain tools and utilities such as compilers or debuggers for developing applets and applications.

What is Java Runtime Environment (JRE)?

The JDK is a superset of the JRE, and contains everything that is in the JRE, plus tools such as the compilers and debuggers necessary for developing applets and applications. The conceptual diagram above illustrates all the component technologies in Java SE platform and how they fit together.

If you want to make use of PHP 6 when it comes, you're going to have to write your new scripts so they are compatible, and possibly change some of your existing scripts. To start making your scripts PHP 6 compatible, I've compiled a list of tips to follow when scripting:

1. Don't use register_globals. In PHP 6, support for register_globals will be no more. There will be no option to turn it on or off - it will not exist. This change should not affect you, as you shouldn't really use register_globals anyway. If you don't already know, register_globals puts $_REQUEST into the global scope, so you can access the variables just like any other variable. Instead, you should access inputed data like this:

  $_GET['input'];
  $_POST['input'];
  $_REQUEST['input'];