How to Determine Open and Blocked TCP/UDP Ports

by File in: Networking

Looking for a way to determine which ports are open and which ports are blocked on a computer? Ports are basically logical connections between two computers or network devices for sharing data. Port numbers range from 1 to 65536 and some port numbers are assigned to specific tasks, such as port 80 for transferring HTTP […]

How to Block Remote Connections to a Windows XP Computer

by File in: Windows XP Tips

If you’re not careful, it may be possible for hackers to remotely connect to your computer without your knowledge and copy, change, or delete files. If you travel a lot and have to connect to unsecured wireless networks at hotels, airports, etc, you should make sure to beef up the security on your system so […]

What is Simple File Sharing and How to Turn It Off

by File in: How-To

Simple File Sharing is a feature built into Windows that makes it very easy to share files and folders with other computers on your local network. It’s so simple that it’s pretty unsafe too. If you share a folder, everyone can access it, and there are no permissions and no passwords to restrict access to […]

A Problem Has Been Detected and Windows Has Been Shutdown to Prevent Damages to Your Computer

by File in: Windows XP Tips

After installing Windows XP Service Pack 3 and rebooting the computer some people get this error: A problem has been detected and Windows has been shut down to prevent damage to your computer. Some of the technical codes accompanying the error are: OX0000007E (0XC00007D, 0XF7C6B8EA, 0XF7C6B7F4 – 0XF7CBBYF0). By booting into Safe Mode, I noticed […]

Remove Passwords on Excel Password Protected Sheets and Workbooks

by File in: Office Tips

How many times has this happened to you: you set a password on an Excel spreadsheet or workbook and then you forget about it? Or worse, the person that setup the password on the spreadsheet no longer works with you and you have a spreadsheet that you can no longer modify. What do you do? […]

Accessing Local Files and Folders on Remote Desktop Session

by File in: Networking

If you use remote desktop often to work on your network, you probably have noticed that when working remotely, local files and directories on your computer are not accessible on the terminal server session. You end up e-mailing files you are working on the remote server to your local computer. That is a painstaking task, […]

Change IP Address and DNS Servers using the Command Prompt

by File in: Networking

Changing the TCP/IP settings via the GUI interface is very easy and simple. But what about if you want to have more fun doing it and change the IP and DNS properties using the Windows command prompt instead? If you are a Linux guru or a batch scripting wizard, this should not be complicated. If […]

Windows 2003 Active Directory Setup:dcpromo

by File in: How-To

Now that we have setup Windows Server 2003 on our virtual machine, patched it with SP2, installed an anti-virus and setup DNS, it is now time to setup Active Directory using dcpromo. Setting up Active Directory using the run command dcpromo is a straightforward procedure. To begin, from your Windows 2003 Server desktop, go to […]

VMware Server Web Access Default Username and Password

by File in: Virtualization

Yesterday I setup a testing network using VMware server. I started by installing VMware server and as I realized that VMware uses the credentials from your Windows machine to login to the console. However, if you are using any other account other than the built-in Administrator account, you will likely have problems logging in to […]

Internet Connection Problems – Incorrect Proxy Server Settings

by File in: Help Desk

Sometimes when troubleshooting Internet connection problems, we seem to try everything: from the most basic (is the cable still connected?) to the most advanced techniques (has someone hacked my router?). However, on occasions, nothing seems to fix the problem until we check some obscure settings that no one would suspect to be causing the frustration. […]