Welcome to our vibrant hub for all things networking and computing! At CellStream, we believe in empowering you with the knowledge to master your digital world. Whether you’re a beginner looking for foundational advice or a tech-savvy enthusiast seeking advanced techniques, our Computing Tips section is your go-to destination.
If there is something you need help on or something you would like to see added here, just drop us a line at our Discord server and we will be glad to try and help.
Be careful, not all tips work on all networking equipment nor operating systems.
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 start when Windows […]
Clean Up the Startup Folder with Autoruns Tool Read More »
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 PowerPoint to allow
A Great Toolkit for Presenters – Zoomit! Read More »
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 for tracking down
A better view of Processes and Internal Operations Read More »
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 a free 30
Sharing your desktop and allowing a user to control your PC Read More »
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 to them. By
Securing a Home or Small Business Network Read More »
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 uses IPSec to
An IPsec VPN Lab Exercise Read More »
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 applications for the
What is the ‘netstat’ command, and what can it do? Read More »
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 Reference Library OK –
What is the ‘arp’ protocol and the ‘arp’ command, and how can I use it? Read More »
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 like this into
Using a Dynamic DNS Service Instead of a Public IP Read More »
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 starts up to
Some Basic Troubleshooting Tips for the PC/Networking Read More »
Here is a good question: At a recent POTS to Pipes you told us of the story of the customer that was upset with his local telephone company due to his internet being really slow, etc., and you had went through some steps that you could use to verify how many appliances a person actually
Determining What is Connected to a Customer LAN or WLAN with ColaSoft MAC Scanner Read More »
Device drivers: which ones are running on your Windows System?? Here is how you find out: you can find detailed information about specific drivers being used in a Windows system by going to Device Manager, selecting the device from the list, and drilling down to the device’s properties sheet. While this technique is fine when
Troubleshooting Device Drivers Read More »
When you install a device driver on a Windows machine, the operating system loads that driver each time the computer boots regardless of whether the device is present—unless you specifically uninstall the driver. This means that drivers from devices that you have long since removed from your system may be wasting valuable system resources. Follow
Removing unused Device Drivers Read More »
One of Microsoft’s big selling points for Windows XP was that it loads applications much faster than its predecessors. To accomplish this feat, Windows XP uses what is called the “Prefetch technique,” in which the operating system gathers information about each program that you launch and stores that information in the \Windows\Prefetch folder. Then on
Faster Booting by cleaning out Windows Pre-Fetch Folder Read More »
If you are new, or if you are experienced in Linux, it is always helpful to have a cheat sheet with all the various commands to help you control networking, process files, and much more. Sometimes a cheat sheet can even show you better ways to do something, or even introduce you to new things
A Linux Command Line Cheat Sheet Read More »