For Windows 95, 98 and ME:

1. Right-click on Network Neighborhood and select Properties

2. On the Identification tab, enter a unique name for your computer.
   Also on this tab, you can (re)set the workgroup name. You can enter anything you want as a workgroup name, but all the computers on your network must share the same workgroup name.

3. Click OK

These changes will take effect when you reboot your computer.

For Windows 2000 Professional:

1. Right-click the My Computer icon on your desktop, and then click Properties.

2. On the Network Identification tab, click Properties.
3. Under Members, click the Workgroup option, and then type the name of the workgroup.
4. Click OK.
5. Click OK again.
6. Restart your computer when you are prompted to do so.

For Windows XP:

1. go to the “Start” button and then select the “Control Panel.”

2. Double click the “System” icon
3. A new window will open — click on the “Computer Name” tab.
4. Click on the “Change” button
5. Enter a unique computer name
6. Click the radio button for the workgroup and enter the name of the workgroup that all your other computers belong to.
7. Then click “OK”.

There are lots of tools and techniques that help you protect your valuable files and other computer-based resources from outside (or inside) hackers.

Here are what I believe to be the most important ones:
Continue reading ‘Here’s the big picture on computer and network security’

Take a moment and think about your home address. That’s right — the house or apartment you live in. What is your address?

It probably follows a format like this:

It’s all very logical: if your street has 25 homes on it, all the homes must have a unique house number while sharing a common street name.

Here’s how this relates to IP addresses:
Continue reading ‘How to make sense out of IP addressing’