Welcome to CellStream’s Networking and Computing Tips resource center, where technology professionals, students, and enthusiasts can find practical guidance, troubleshooting techniques, and real-world solutions for today’s networking and computing challenges. Our goal is to help you work smarter, solve problems faster, and build a stronger foundation of technical knowledge.
Whether you’re configuring a network, optimizing system performance, learning a new technology, or troubleshooting a difficult issue, you’ll find valuable insights drawn from decades of industry experience. From Wireshark packet analysis and broadband technologies to Windows, Linux, cybersecurity, Wi-Fi, and Internet protocols, our tips are designed to be practical, actionable, and immediately useful.
• Step-by-step technical guides and how-to articles
• Networking troubleshooting techniques and best practices
• Wireshark tips, packet analysis workflows, and protocol insights
• Windows, Linux, and computing optimization recommendations
• Cybersecurity awareness and protection strategies
• Broadband, Wi-Fi, Ethernet, TCP/IP, and Internet technology guidance
• Productivity tips and tools for network engineers and IT professionals
• Improving network troubleshooting efficiency
• Optimizing computer and operating system performance
• Securing devices, accounts, and data
• Capturing and analyzing packets with Wireshark
• Understanding TCP/IP, DNS, DHCP, Ethernet, and Wi-Fi technologies
• Using industry tools more effectively
We’re always looking for new ideas, questions, and topics to explore. If there’s a networking or computing subject you’d like us to cover, or if you need help solving a technical challenge, connect with us through our Discord community or contact us directly.
Please note that not all tips, procedures, and configuration examples apply to every operating system, network device, software version, or vendor platform. Always verify compatibility and test changes in a controlled environment before implementing them in production networks.
Post Views: 1,370 Sometimes Microsoft Windows will do something crazy and you can no longer get the Start > Shutdown process to work. Most will push and hold the power button until the system halts, then restart. There may be two other things you can do: Hope this is helpful. Comments are welcomed below from
Shutting down a computer that appears unresponsive Read More »
Post Views: 2,215 Warning – this is way cool. Imagine being able to get a build list and inventory detail of exactly what CPU, Memory, Mother Board and Video graphic Card your system is using. Well, it is easy and free! The tool also includes some benchmark tests under the bench tab! Just download and
Identify Your Computers Components in Detail Read More »
Post Views: 1,800 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
Dive Deep into Task Management for Windows Read More »
Post Views: 1,692 The use of social media for ROI (Return on Investment) has its supporters and critics when it comes to your business. We recently found the lists below of companies that have successfully used social media to better their business and enhance connectivity to their customers. At the end of the day, it
Using Social Media for ROI Read More »
Post Views: 2,263 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
Blocking Certain Sites Using Your Home Router Read More »
Post Views: 1,505 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
Clean Up the Startup Folder with Autoruns Tool Read More »
Post Views: 1,480 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
A Great Toolkit for Presenters – Zoomit! Read More »
Post Views: 1,302 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
A better view of Processes and Internal Operations Read More »
Post Views: 1,364 Caution: This is how scammers take over your computer and trick you into things. That said, helping other through a tool that can do this can be very helpful. There are a number of great options for accomplishing this task such as GoToMyPC.com among others. But usually these are pay sites after
Sharing your desktop and allowing a user to control your PC Read More »
Post Views: 1,833 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
Securing a Home or Small Business Network Read More »
Post Views: 1,739 The following lab exercise is how to create an IPsec VPN on Cisco IOS. We originally created this lab as part of one of our courses, and we hope you find it useful. Lab Preparation This lab is designed to help you learn the basics of IPSec VPN’s and how Service Providers
An IPsec VPN Lab Exercise Read More »
Post Views: 7,093 The netstat (short for network statistics) command is a powerful diagnostic tool used to display various network-related information on a computer. It’s available on Windows, Linux, and macOS systems (though on newer systems it is sometimes replaced or supplemented by ss in Linux or Get-NetTCPConnection in Powershell). netstat helps you: Some useful
What is the ‘netstat’ command, and what can it do? Read More »
Post Views: 12,202 Let’s answer the questions, but before I do, you can watch my ARP lesson on YouTube here: https://youtu.be/aD_caJxD7nY and look at the lessons in the playlist: https://www.youtube.com/playlist?list=PL-nDeWT9WTjFT1syEIGsLTObjkx4XDOUt Check out some further ARP Resources: Our free ARP course at Udemy Our ARP custom profile for Wireshark Our chapter on ARP at the Online School
What is the ‘arp’ protocol and the ‘arp’ command, and how can I use it? Read More »
Post Views: 1,442 If you have a web/email server connected to the Internet that you want other to reach, that server must have a public IP address. Most Internet users don’t even try to remember the IP addresses of sites they use, instead they use the Universal Resource Locator system of typing www.cellstream.com or something
Using a Dynamic DNS Service Instead of a Public IP Read More »
Post Views: 1,433 Here are some fundamental PC Troubleshooting Tips. We cant cover everything here, but if something below helps, great! PC Won’t Boot Into Windows Try “Safe Mode” FirstWhen your PC just won’t boot into Windows at all, you’ll probably want to start off with Safe Mode—use the F8 key right when the system
Some Basic Troubleshooting Tips for the PC/Networking Read More »
