Modifying the Local Address Table (LAT) for ISA Server Installation When ISA Server runs as a firewall (install ISA Server in Firewall mode or in Integrated mode), ISA Server uses the Local Address Table (LAT) to determine the following information so that it can implement access rules: Determine the IP addresses on the private network. Determine the IP addresses on the public network. The firewall client uses the information in the LAT to determine the following: The addresses that need to be forwarded to the firewall The addresses which should Read More

A ringtone is a custom sound that plays when some mobile phones receive an incoming call. Early cell phones had very boring rings, just like standard landline telephones. When a dozen people were in a meeting and one of their cell phones rang, it took some time to sort out whose cell phone was ringing! Ringtones allow each of us to give our cell phones a bit of personality, while at the same time they help us to sort out our incoming calls from everyone elses incoming calls. Ringtone Formats Read More

HTTP Error 403 is an error message which means that you are not authorized to view the web page which you are attempting to load. Usually, the HTTP error 403 – Forbidden means that access to the file/folder you are trying to open has been denied, either on intention or owing to a configuration anomaly. You could attempt using a proxy website if the access is blocked intentionally. The 403 error is also known as “Forbidden”. The server understood the request, but is declining to perform it. Authorization will not Read More

A registry cleaner is a program that cleans registries. A registry is a collection of essential computer files that allows the operating system to run properly and access various files and programs on the computer. When missing files, files with the same name or content, or files that cannot be accessed corrupt the registry, the computer’s performance and speed may be negatively affected. By simply running a registry cleaner, such as CCleaner, the user can dramatically increase his/her computer’s speed. What is a Defragmenter? A defragmenter is a program that Read More

WinRAR is a popular free archiving alternative to WinZIP that is capable of archiving and extracting WinZIP archives, WinRAR archives, and a variety of other archive formats such as ARJ, LZH, TAR, GZ, ACE, UUE, BZ2, JAR, ISO, EXE, 7Z, and Z. WinRAR is one of the most popular archiving programs available due to its integration into a variety of operating systems and support for a wide variety of archiving formats. WinRAR is able to compress, encrypt, archive, and extract single files or entire folders in a matter of seconds, Read More

HD Radio offers a new and better way to broadcast radio programs. The "HD" in HD radio is a trademarked brand name that's given by its developer and that doesn't stand for anything. HD Radio technology is developed without any intention to replace traditional FM and AM radio broadcast. HD Radio is currently being broadcast along with conventional FM and AM signals. The main difference of HD Radio compared to Amplitude Modulation (AM) and Frequency Modulation (FM) is the form of signal that it uses to carry information. Both AM Read More

The Kindle, which Amazon produced, is an e-reader/tablet PC that allows users to access the Internet, check their email, and use a variety of applications. The Kindle is also designed to allow users to read e-books in full screen, toggle mode, and even split screen. The Kindle is dependent on touch screen technology and allows users to flip pages, highlight text, and switch books by tapping the screen. There are several types of Kindles, including the Kindle DX Reader, the Kindle 3G + WiFi, the Kindle Touch Reader, the Kindle Read More

Unprotecting an Excel sheet is surprisingly easy. If your Excel sheet is password protected and you do not know the password, there is no way that you can unprotect the sheet in that particular workbook – but you can create a new workbook which will contain exactly the same formulas, formatting and values that will not be protected and will be editable. How to Unprotect a Non-Password Protected Excel Sheet Open up the Excel document. Click on the “Review” tab. Click “Unprotect Sheet” or “Unprotect Workbook.” How to Unprotect a Read More

DSL, also called digital subscriber line, is a technology that delivers broadband Internet to many people's homes via their conventional telephone landline. DSL is one of two popular broadband Internet technologies used for the home market, the other being cable broadband which uses existing cable TV lines to deliver broadband Internet. Another growing technology for delivering broadband Internet to homes is Satellite Internet technology. While nowhere near as popular yet, satellite Internet technology is gaining popularity in rural areas where landlines or cable TV lines are not available. In addition, Read More

ZigBee is a wireless protocol that was developed as an International standard to enable wireless, machine to machine communication, and networks. It is considered the catalyst for constructing “Smart” enabled buildings and homes since it is based on reliable network communications, a pro-longed battery life, and can be simply operated. The ZigBee Alliance is the group of companies that worked on both the protocol development as well as the implementation of wireless communication devices that are inexpensive and have low power requirements. Why was the ZigBee Protocol Developed? The ZigBee Read More