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: 3,757 Check out our IPv6 Cheat Sheet! All the important IPv6 References in one place. This is vital to anyone learning IPv6. We have created an IPv6 cheat sheet to help. You can download it here! I hope you find this article and its content helpful. If you would like to help support
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Post Views: 1,351 Hello! We have created an IPv6 OS Command cheat sheet to help. You can download it here! IPv6 has been in an ongoing growth curve as it transforms the Internet. There is a lot to learn, and hopefully this cheat sheet will serve as a great reference. As you learn IPv6 you will
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Post Views: 2,583 Quite often in Linux and other operating systems such as MAC OSx or Unix or Solaris, you need to use an editor called Vi or VIM. This cheat sheet comes in very handy for this editor. You can download it here! I hope you find this article and its content helpful. Comments are
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Post Views: 2,785 Teredo Tunnels are a way to create a tunnel between two IPv6 end points (your computer and a web server) across the IPv4 network (your home or business and the Internet). In Windows 7 (and I believe Vista as well) you do not have to worry about using this if your home
Setting Up an IPv6 Teredo Tunnel in Windows 7 Read More »
Post Views: 1,847 In this article we will discuss setting up and ISATAP (Intra-Site Automatic Tunnel Addressing Protocol) Tunneling in your Windows 7 machine. In order to do this, we will use an ISATAP Server at Sanjiang University in China. Everything is good to go. Your ISATAP Tunnel is running. To remove the ISATAP config,
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Post Views: 1,508 Before I start, a couple of warnings. Make sure you are running one of the latest (10.x or 11.x) versions of Ubuntu Server. You can get this from the Ubuntu Web Site. Also make sure you have installed on the latest updates to your system. The procedure I have noted is done
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Post Views: 1,637 This is really simple.We have chosen OpenSSH as the best software for the job. Begin by opening a Terminal Window on the server. Enter the following command to install OpenSHH:sudo apt-get install openssh-server Done! To test that it’s working, you can try to ssh into the server: ssh localhost You will be
Setting up a SSH Server in Ubuntu Server 10.x and above Read More »
Post Views: 1,997 Check out these great references as well: Our custom profiles repository for Wireshark Our Udemy course on Wireshark Our Udemy course on Wireless Packet capture Perhaps…. Wireshark uses a custom syntax to create display filters. There are millions of possibilities, but here is perhaps a top 10 list. If you are looking
Perhaps a top 10 Wireshark Display Filter List Read More »
Post Views: 1,704 Check out these additional IPv6 Resources: Our IPv6 overview course at Udemy Our IPv6 Custom Profiles for Wireshark Our IPv6 classes at the Online School The following is a list of IPv6 operations and their associated How To links for Ubuntu. Please feel free to comment on additional links that others can
Links to Ubuntu IPv6 How To’s Read More »
Post Views: 1,681 Hi everyone! [Wow – this was a long time ago! As of 2020 I have updated a little.] One of the challenges to any computer user is keeping software up to date with the latest features, bug fixes, and security patches. Often this tedious process requires opening applications and seeing if the
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Post Views: 4,139 Check out these additional IPv6 Resources: Our IPv6 overview course at Udemy Our IPv6 Custom Profiles for Wireshark Our IPv6 classes at the Online School Here are some great Windows command line entries you can make to examine and configure IPv6 (assuming your version of Windows does so). We will discuss use
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Post Views: 3,938 Check out these additional IPv6 Resources: Our IPv6 overview course at Udemy Our IPv6 Custom Profiles for Wireshark Our IPv6 classes at the Online School ***There is an update to this article you can find here*** Here are some great Linux command line entries you can make to examine and configure IPv6
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Post Views: 5,572 Check out these additional IPv6 Resources: Our IPv6 overview course at Udemy Our IPv6 Custom Profiles for Wireshark Our IPv6 classes at the Online School Before I get started, let’s just clarify that besides MacOS or macOS, IPv6 is supported on iOS, ipadOS, tvOS, watchOS as well as on visionOS. The kernel
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Post Views: 1,414 We have previously written praise for Ubuntu as an operating system. The regular Ubuntu desktop OS can be found here. Some of you may prefer the Ubuntu Server that can be found here. If you install the Ubuntu Server, when the system boots the first time, you will find out very quickly
Installing the Desktop for Ubuntu Server Read More »
Post Views: 1,984 If you own a Netbook or laptop, you may be surprised by the new default look of the latest Ubuntu release. I have tried to like it on my Netbook. I have completely complied with the neverending typing of application names to find my common apps. Some of my colleagues have reported
Fixing the Ubuntu 11.x User Interface Read More »
