Author name: Andrew Walding

Andrew Walding is the founder and president of CellStream, Inc., bringing more than 30 years of experience in telecommunications, broadband networking, Internet technologies, and technical education. His expertise spans network engineering, wireless and wireline communications, packet analysis, network operations, emerging technologies, and the design and delivery of advanced technical training programs. A Cisco-certified professional, IPv6-certified specialist, and CBRS Certified Professional Installer (CPI), he helps organizations and technology professionals understand, deploy, troubleshoot, and optimize modern communications networks.

Dive Deep into Task Management for Windows

Post Views: 1,565 For most of us, Task Manager is enough information when we are running Windows, especially when an application freezes.  But what if you want to know more about how much CPU usage is being used by each of your open tabs in Explorer or Firefox?  How about finding what DLLs or handles

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Wireshark Protocol Analysis Services

Post Views: 21,554 Everything runs over Packets and Frames today. Voice calls, video conferencing, cloud applications, web services, streaming media, online gaming, industrial systems, smart devices, and the ever-expanding Internet of Things all depend on the reliable operation of IPv4 and IPv6 networks. While this convergence has enabled remarkable innovation and created countless new opportunities,

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Blocking Certain Sites Using Your Home Router

Post Views: 1,637 Aside from the challenges of blocking offensive content (see the separate article on that subject), you may desire to simply block access to certain sites.  A common question I am asked is how can I block my kids from using Facebook and other similar social networking sites when they are supposed to

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Clean Up the Startup Folder with Autoruns Tool

Post Views: 1,153 Malware sometimes likes to invade the startup folder and other locations on infected systems. Seems that these are the hardest things to find and get rid of when trying to clean up spyware/malware/ infections. Autoruns can help with that. It looks through all possible locations where applications can be listed to automatically

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A Great Toolkit for Presenters – Zoomit!

Post Views: 1,239 ZoomIt is a utility for the public speaker in all of us. When presenting information, sometimes it is helpful to show a certain area of the screen magnified to call attention to a dialog box or other item. This is what ZoomIt does in a nutshell. When configured, it will integrate with

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A better view of Processes and Internal Operations

Post Views: 1,038 Ever wondered which program has a particular file or directory open? Now you can find out. Process Explorer shows you information about which handles and DLLs processes have opened or loaded.  We love the tool! The Process Explorer display consists of two sub-windows. The unique capabilities of Process Explorer make it useful

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The BBS – Bulletin Board System – Before App Stores and Email

Post Views: 7,719 This article was originally written in 2010. As Thanksgiving 2010 quickly approaches, we are reminded to give thanks for everything we have, no matter how small.  This requires that you look back and consider where you have been and what you have accomplished.  Understandably, the memories aren’t all that great in every

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Securing a Home or Small Business Network

Post Views: 1,528 In this article we will show you how to secure your home network in a great way using IP Addressing. By making some simple changes to the way you address the home or small business network, you can easily provide visitors with Internet access, without exposing your own computers, appliances and servers

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CSI-SP-001 – POTS to Pipes 1

Post Views: 12,484   The Fundamentals of TCP/IP for Service Provider Managers / Engineers / Marketing Course Description: Attended by thousands of students around the country already, this one-day course is jammed with information and learning. This course focuses on the basics of the Internet, the OSI model, IP Addressing and subnetting, IP Routing, TCP

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CSI-HO-015 – Hands-On Quality of Service (QoS)

Post Views: 12,355    CellStream, Inc. – Telecom Consulting and Training!             2-Day Instructor Led Hands On Lab Class Available in either Web Based delivery or On-Site Delivery Minimum 10 students – Maximum 16 students   Course Description: Knowing the fundamentals of Quality of Service (QoS) is vital to anyone who

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