Lionjkt's Blog

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How to change a Mac Adress

MAC addresses are an example of an address that resides on the datalink layer of an OSI model. The addresses themselves are written into the hardware proper at the time that the model is manufactured. This has led to some people referring to a MAC address as a burned in address.

Why is the MAC Address burned into the Data Link Layer?

It is important to understand how a data link layer is set up. The DDL, also known as Layer 2 actually has two sub layers. One is referred to as the Media Access Control (or MAC) and the other is the Logical Link Control. It is within the MAC sublayer that the MAC address is burned during the production process. The reason for this action is to make sure there is a default address connected with the device and that no additional programming of an address is necessary in order for operation to take place.

What Does the MAC Address Do?

The main function of the MAC address in the sublayer is to aid in the way that a node on a network gains access to data and helps to provision the method that is used to transmit the data as well. Acting as an identifier, the MAC address essentially provides a place for data to collect and a launching point for data to be sent out and distributed.

How is a MAC Address Set Up?

The typical MAC address is forty-eight bits long. This number of bits makes the configuration of addresses virtually endless, although it is possible to calculate the exact number of MAC addresses that could be created with this number of bits. Suffice it to say the number of configurations is sufficient to ensure there will be no duplications for many years to come. In actual script, the MAC address will translate into a series of both letters and numbers.

Is It Possible To Change A MAC Address?

Yes. While it is true the originating MAC address is burned in at the time of production, there are software packages that can help to change an address with relative ease. The software will generally identify the next logical configuration and offer it for approval to the user before replacing the originating address.

You can change Mac address with two methode depends on the type of Network Interface Card (NIC) you have. If you have a card that doesn’t support Clone MAC address, then you have to go to second method.

Methode 1

- Go to Start->Settings->Control Panel and double click on Network and Dial-up Connections.

- Right click on the NIC you want to change the MAC address and click on properties.

- Under “General” tab, click on the “Configure” button
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February 9, 2010 Posted by lionjkt | Network, Registry Windows XP, computer technology | , | No Comments Yet

What is Spyware and Malware?

Spyware is malicious software that can intercept and take control of your computer without your knowledge or consent. The presence of spyware in the computer of a person is a major threat to the privacy and productivity of a person. Spyware can get very easily installed to your computer without your knowledge. There are some software which can help you in fighting off the menace of spyware. Reading spyware reviews can help you in buying the best spyware remover available in the market. For, there are different types of spyware removers available in the market.

Spyware reviews contain all the features of the spyware remover. The reviews tell the customers about all the different features of the particular spyware remover. You can come to know about the effectiveness of the spyware remover. You can find the reviews from magazines, newspapers and different online sites. Reviews are reliable as they are written by people who have already used the product. Thus you can also come to know about the negative aspects of the software as well. The spyware reviews can help you in choosing to buy the remover which best suits your requirements.

Spyware is not the same as worms and virus found in the computers. Spyware is designed to exploit the infected computers for commercial gains by the makers. The typical tactic adopted by spyware is through the use of pop up advertisements, theft of personal information and also monitoring the web browsing activity of the user. The spyware which gets installed in your computer without your knowledge monitors your internet habit and this information is sent out to a third party who can use this for advertisement purpose.
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February 8, 2010 Posted by lionjkt | computer technology, windows | , , | No Comments Yet

The cool stuff and the great things about wireless.

Understanding on aspect of going wireless – the network card.

Like most “typical” computers users, you love your computer and you’ve pretty good at surfing the net, using email and you’ve probably even gotten fairly proficient at using your favorite word processing program but when it comes to some of the more technical aspects of your computer or computing in general, you are probably about as close to a “deer in the headlights” as you can get.

Hey, no problem because you’ve stumbled across a source that hopefully can shed a little light into that wireless networking card abyss. See, those searching skills do come in handy.

How to selecting a wireless networking card:

- range
Take a look at where it says “up to 120m indoor”. This means that the maximum range of the wireless card is 120 meters — sure if everything was perfect. And by the way, one meter is equal to about 39 inches or 3 feet. However, in the real world where nothing is ever perfect interference caused by thick walls, other power sources and the list goes on could reduce this number by as much as 90% – so just be aware of this.
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February 4, 2010 Posted by lionjkt | Network, wireless | , | No Comments Yet

How to Find Good Product for Health and Beauty

Today hair loss is the most common medical problem. Millions of people all over the world are struggling in the endless battle to stop their hair loss. How ever, most of them did not spend a couple of minutes learning what exactly the meaning of hair loss is. Now you can find good product about hair care online.

You can find  a good product  for skin care, we know skin is the largest organ in the human body. The skin constantly protects the human body from infections and other sickness. Yet at the same time, the skin is the most vulnerable organ in the body because it is exposed to pollution like cigarette smoke, specifically to the carbon monoxide emitted by cars. The skin may also be exposed to the sun’s ultraviolet rays. Some say that beauty is only skin deep. Nonsense! I believe that true beauty is a reflection of true health, and true health begins deep inside each and every cell in the body. Your skin can’t be healthy if your are subjecting it to toxic substances that are ultimately absorbed into your body

Remember for a shopper, this means you can find anything and everything for sale about healt and beauty on the web

February 4, 2010 Posted by lionjkt | Business | | No Comments Yet

Tips how to Clean Installation Window Vista

Perform a clean installation of Windows Vista this is not work for an upgrade

There are no secrets here. Don’t let it scare you off. Just know there are often major changes in what a computer will have and what Vista requires. You can windows Vista Upgrade Advisor before doing anything. It is located at http://www.microsoft.com/windows/products/windowsvista/buyorupgrade/upgradeadvisor.mspx

Then Applies to version comparissons at http://www.microsoft.com/windows/products/windowsvista/editions/choose.mspx )

• Windows Vista Home Basic
• Windows Vista Home Premium
• Windows Vista Ultimate
• Windows Vista Business
• Windows Vista Enterprise
• Windows Vista Starter

In a clean installation, existing data is removed – that includes documents, pictures, movies, music, downloads, etc. This data includes personal data and settings. Please back up or make copies of any and all data you wish to keep to another hard drive or computer before proceeding any further.

After you install the Vista operating system, you must also reinstall all programs and restore any data you moved in the previous step. AGAIN!!…Make sure that you back up your personal and business data before you perform a clean installation.

To perform a clean installation of Windows Vista, use one of the following methods only after running the upgrade advisor, it is located at http://www.microsoft.com/windows/products/windowsvista/buyorupgrade/upgradeadvisor.mspx

Most people don’t read the fine print: There are 23 (count them 23) warnings and exceptions hid behind this little ditty (Some product features are only available in certain editions of Windows Vista and may require advanced or additional hardware) hid at the end of Microsoft’s 100 Reasons why you should upgrade to Vista.

Lets get started:

Method 1:

Run the Setup program after you start the computer by using the current operating system

1. Start the computer by using the current operating system.
2. Insert the Windows Vista DVD in the computer’s DVD drive.
3. Use one of the following procedures, as appropriate:

• If Windows automatically detects the DVD, the Install now screen appears. Click Install now.

• If Windows does not automatically detect the DVD, follow these steps:
a. Click Start, click Run, type Drive:\setup.exe, and then click OK.
Note Drive is the drive letter of the computer’s DVD drive.
b. Click Install now.

4. When you reach the Which type of installation do you want? screen, click Custom (advanced), and then follow the instructions that are displayed on the screen to install Windows Vista.
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February 3, 2010 Posted by lionjkt | windows | , , , | No Comments Yet

Step by Steps Wireless Routers and Security

Setting up a wireless router is easy. Essentially you turn your cable or DSL modem off and your wireless router on. Then, you connect the router to the modem with a cable, and turn the modem back on. You are more or less done. The wireless network wizard on your computer will pick up the router and, if your ISP does not have any special requirements, away-you-go, you are on the Internet.

For ease of setup and configuration, manufacturers ship wireless routers with all security disabled. Therein lies the problem. If you do not take any further steps to secure your router, and a surprising number of people don’t, your network will be wide open to all passersby and strangers. It’s like you’ve hung out a sign, “The door is open. Please come in and help yourself.”

The problem is not that strangers will be able to use your router to access the Internet but that, without further protection, would-be intruders will be able monitor and sniff out information you send and receive on your network. Malicious intruders can even hop on to your internal network; access your hard drives; and, steal, edit, or delete files on your computer.

The good news is that it is relatively easy to secure your wireless router. Here are three basic steps you should take.

1. Password protect the access to your router’s internal configuration

To access your router’s internal setup, open a browser and enter the routers setup URL. The URL will be specified in the manual. The URLs for D-Link and Linksys routers, two major manufacturers of wireless routers, are http://192.168.0.1 and http://192.168.1.1, respectively.

For Linksys routers, leave the user name blank and type “admin” (without the quotes) in the password field and press enter. To change the password, simply click on the Password tab and enter your new password.
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February 1, 2010 Posted by lionjkt | Network, security, wireless | , , | No Comments Yet

Knowing Denial Of Service Attacks at Routers

Routers are not perfect. For that matter, nothing is. So if somebody wants to give a router more than it can handle there is a way to do this. We’re going to take a look at what are called denial of service attacks.

A router can only handle so much information coming into it at one time. Every machine has its limits and routers are no exceptions. Well, when the nasty trend of denial of service attacks started early this century, routers were unprepared for them. As they began to understand what was happening they began to compensate for the problem. But there was still a way around it. To understand this we first have to understand what a denial of service attack is.

A denial of service attack is just as it sounds. It is when someone prevents the router or routers from servicing the network. The question is, how do they do this? As previously stated, a router can only handle so much information coming into it to be routed at a time. If too much information starts coming in then the router gets overloaded and can’t forward the information fast enough. Ultimately, what happens is this slows the network down to the point where nobody can access it. In a denial of service attack, which is a deliberate attempt to cause this problem, a person will send an enormous amount of information from one computer to the router at one time. Eventually this will effectively shut down the network. The reason is because of the trickle down effect. Once the main routers start to get overloaded they start to send messages to the rest of the network that the connection is full. These messages start to cascade through the entire network until all the pathways in the network are full and nobody can communicate with any server on the network.
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January 29, 2010 Posted by lionjkt | Network, computer technology, security | , , , | No Comments Yet