Post Views: 2,854 Hello my Networking and IPv6 researchers and enthusiasts. I just started a PCAP repository at Github for IPv6 Extension Header (EH) packet capture examples. Honestly I found nothing worthwhile on the web, that’s not to say they don’t exists in some niche place, but I wanted something easy to access and easy […]
IPv6 Extension Header PCAP Repository Read More »
Post Views: 25,038 This blog article is a culmination of my years of experience in the networking and computing worlds. Over those years, where I began as a bench and field technician, I have had a number of classes that my employers sent me to to teach troubleshooting skills. Usually termed with the words “logical
A Dive Into Network Troubleshooting Read More »
Post Views: 2,685 An essential function when administering a Linux system is viewing, configuring and managing users and groups. I cover adding users in this article: https://www.cellstream.com/2022/04/06/using-the-useradd-command-to-create-user-accounts-in-linux/ That said, viewing users is done using a few simple commands. How To View Users on a Linux System Every user on a Linux system, whether created as
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Post Views: 4,562 Like most operating systems, Linux can have multiple user accounts. The system administrator or root account, or users with sudo privileges are responsible for managing these users, as well as managing those accounts. Linux is a multi-user system, which means that more than one person can interact with the same system at
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Post Views: 1,516 I have been teaching Hands On IPv6 courses since 2011 – OMG thats 10 years plus!!! Over the course of time, the Internet Engineering Task Force and various companies have been expanding and detailing IPv6 implementation and specification. As our students know, we are very diligent updating our courses thanks to our
A Better and Complete IPv6 Bibliography Read More »
Post Views: 1,697 Got to thinking the other day. What are the world’s most important RFC’s (Request for Comment specifications)? I decided to make a list. While the following are not in any order, I tried to base them (mostly) on date. While TCP came first, I still put the Internet Protocol on the top
The World’s (Generally) Most Important RFC’s of the Internet Read More »
Post Views: 1,681 CellStream, Inc. PRIVACY STATEMENT Your privacy is important to CellStream, Inc. (CSI). This privacy statement provides information about the personal information that CSI collects, and the ways in which CSI uses that personal information. Personal information collection CSI may collect and use the following kinds of personal information: Information about your use
CellStream, Inc. Privacy Statement Read More »
Post Views: 1,831 Hi everyone! Happy Thanksgiving 2021. Just released – Wireshark 3.6.0!!! Why is this important to me, you, and everyone who troubleshoots Voice traffic using Wireshark? Well, there are many changes to the voice related functionality in Wireshark in this (actually as part of the development 3.5.0 – you can read more on
Important Updates to Wireshark for Voice and VoIP Read More »
Post Views: 1,381 From a news channel this evening: “The FBI and CISA are aware of the incident this morning involving fake emails from an @ic.fbi.gov email account,” the FBI said in a statement. “This is an ongoing situation and we are not able to provide any additional information at this time. The impacted hardware
FBI Email System is Hacked Read More »
Post Views: 2,051 It is the morning after. Approximately 24 hours ago, Facebook, WhatsApp, Instagram, and more, went down. Why? How? From the early indications of what is being said, I don’t think the general public will ever be told the whole truth. This is especially going to be the case if there is a
What will be the truth regarding the Facebook Outage of 10/4/21? Read More »
Post Views: 11,746 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 20 students Course Description: Knowing the fundamentals of Wi-Fi 6 and Security as these subjects pertain to Wi-Fi/Wireless LAN Operations is vital to anyone
CSI-HO-035 – Wi-Fi 6 and Wi-Fi Security in the Wireless LAN Read More »
Post Views: 59,851 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 Hi Everyone! If you are like me, you use Wireshark every day. For me that means troubleshooting many different network applications and traffic types, including Voice traffic
Wireshark 3.5 Development Release adds significant voice upgrades Read More »
Post Views: 11,763 1 Day Instructor Led Technology Overview/Briefing Available in either Web Based Delivery or On-Site DeliveryWeb Based Delivery: Max class size is 50On Site Delivery: Max class size is 30 Course Description: Google introduced one of the most significant changes to the Layered Model of telecommunications when it introduced QUIC (see our articles
CSI-TB-007 – QUIC Redefines the Transport Layer – A Technical Overview/Briefing Read More »
Post Views: 13,035 1 Day Instructor Led Technology Overview/Briefing Available in either Web Based Delivery or On-Site DeliveryWeb Based Delivery: Max class size is 50On Site Delivery: Max class size is 30 Course Description: For the first time in history, we are seeing the deployment of cellular mobile networking technology in commercial enterprises, to solve
CSI-TB-006 – CBRS Solutions in the Enterprise Technical Overview/Briefing Read More »
Post Views: 2,842 Here is a quick and clever technique in Wireshark. Let’s say you want to present, testify, or teach about a packet capture in Wireshark, but you want to redact information that is not important, perhaps hiding an error that was made, or some information that is private, or some other reason. Redaction
Redaction Technique in Wireshark Read More »
