Creating a Simple LAN Computer Network

When YOU at home has more than one computer, and each computer wants to connect with each OTHER to get sharing data, printers, internet connection sharing etc, we can do to make your computer network LAN (Local Area Network) simple ..

this time we use a cable connection that is using a data cable UTP (unshielded twisted pair), which is standard LAN cable for network connection.
Computers are used at present are already equipped with LAN Card or also known as NIC (Network Interface Controller), or Ethernet Card.


If the number of computers that will be connected only two, we just simply providing a single UTP cable with a length according to the distance between the computer that at both ends of the cord that has been fitted with RJ-45 connector (standard connector for UTP LAN cable) and with the configuration Cross / cross.



If the number of computers that will connect more than 2 pieces, then we must add a device called the Switch or Hub. At the current price of a home-based switches to the standard is very affordable.
From each - each computer connected to the switch using UTP cable with RJ-45 connectors at both ends with a configuration Straight / straight.

Installation of connectors on UTP cable can be made yourself, but to simply just go to a computer shop that also provides network equipment, and living told to buy a pair UTP cable connectors with the configuration of all the cross / cross to connect the computer to the computer (two computers) , or straight / straight for more than 2 computer connections / use the switch.

Configuring the IP address (Internet Protocol / TCP IP)
To be able to communicate with each other, respectively - each computer must be given the IP address

• Go to Network Connections (Start -> Control Panel -> Network Connection)
• Select / double-click Local Area Connection
• Double click on Internet Protocol (TCP / IP)
• Click Use the Following IP address, then fill in the IP address and Subnet Mask
For example,
komputer1 IP Address: 192.168.0.1
komputer2 IP Address: 192.168.0.2
komputer3 IP Address: 192.168.0.3
komputer4 IP Address: 192.168.0.4
etc. ..
Must be the same Subnet Mask: 255.255.255.0



To determine success or failure of connection do the ping command from one computer to another computer
Example of komputer1 to komputer2:
• In Komputer1: Click Start -> Click Run -> type CMD -> click OK, then the Command Prompt window will appear
• Type in ping 192.168.0.2 hit enter
Reply from komputer2 there should be
• Perform the same command to find a connection to another computer.

DONE....

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HOW TO RECOVER ADMINISTRATOR PASSWORD AT YOUR PC

1.Insert Windows CD in your cd-rom and start your computer

2. Keep your eye on the screen messages for booting to your cd Typically, it will be “Press any key to boot from cd”

3.Once you get in, the first screen will indicate that Setup is inspecting your system and loading files.

4.When you get to the Welcome to Setup screen, press ENTER to Setup Windows now

5.The Licensing Agreement comes next - Press F8 to accept it.

6.The next screen is the Setup screen which gives you the option to do a Repair.It should read something like “If one of the following Windows XP installations is damaged, Setup can try to repair it”Use the up and down arrow keys to select your XP installation (if you only have one, it should already be selected) and press R to begin the Repair process.

7.Let the Repair run. Setup will now check your disks and then start copying files which can take several minutes.

8.Shortly after the Copying Files stage, you will be required to reboot. (this will happen automatically – you will see a progress bar stating “Your computer will reboot in 15 seconds”

9.During the reboot, do not make the mistake of “pressing any key” to boot from the CD again! Setup will resume automatically with the standard billboard screens and you will notice Installing Windows is highlighted.

10.Keep your eye on the lower left hand side of the screen and when you see the Installing Devices progress bar, press SHIFT + F10. This is the security hole! A command console will now open up giving you the potential for wide access to your system
At the prompt, type NUSRMGR.CPL and press Enter. Voila! You have just gained graphical access to your User Accounts in the Control Panel.

11.Now simply pick the account you need to change and remove or change your password as you prefer. If you want to log on without having to enter your new password, you can type control userpasswords2 at the the prompt and choose to log on without being asked for password. After you’ve made your changes close the windows, exit.

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