Views: 11,153Here’s a solid toolbox of Windows PowerShell commands used for network troubleshooting, with quick notes on what each one is good for. I’ll try to group them by task so they are a little easier to remember. 1. Basic Connectivity & “Ping-Style” Tests Test-Connection PowerShell’s ping (ICMP echo) equivalent. Test-NetConnection More advanced tester: port
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Views: 3,270If you are new to Ansible, I suggest you read our article that defines Ansible, and shows you how to set up an Ansible lab environment to test and learn in. You can also read my article on real world use cases for Ansible right here. One of those use cases is Compliance Testing.
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Views: 1,367Ever wonder what it takes to network an industry showcase like ShowNet? ShowNet is a large-scale demonstration network built annually since 1994. It showcases cutting-edge networking technologies and provides stable internet connectivity throughout the exhibition floor. Over 400 engineers from academia and industry collaborate to design, deploy, and operate this network, utilizing over $80
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Views: 11,474I get asked for this list all the time, so I thought I would just post it. There are others of course, so see the bottom of this post for some others, but if I had to just pick 10, these would be the ones. Links below will send you to Amazon, where if
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Views: 1,846 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 When using Wireshark, on some computers, the number of interfaces present due to things like virtualization and other configurations can be overwhelming. Some times, like when we are
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Views: 1,654Some of you know, that to master networking technologies you have to have a complete grasp of the fundamentals. Furthermore, like any technology, if you don’t review these fundamentals often, they can become a bit hazy in our memory. The question, then, is how can I come up to speed on the fundamentals? And,
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Views: 14,354Nmap (“Network Mapper”) is a free and open source (license) utility for network discovery and security auditing that has been around since 1997. Surveillance and network scanning is often one of the first steps in Penetration Testing or Security Validation. Many systems and network administrators also find it useful for tasks such as network
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Views: 1,819This procedure has moved from our Online School and is now described in an article at this site. We actually have several articles! Here is the original article: click here. Here is an article on securing Wi-Fi in your home or small business: Click here to browse the article! I hope you find this
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Views: 1,661Imagine for a moment a scenario that Japan faced: a tsunami of epic size causing a disaster unimaginable in size and impact. Power would be lost, communications services completely wiped out. OK, how about an earthquake? Flood? Remember that any one of these disasters can cause a huge amount of people to be out
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Views: 1,250A student in a recent class turned us on to this stuff…it is great. Enjoy! A Day in the Life of A Telephone Man Phones and Codes: Brian Regan – Telephone Company One Ringy Dingy – the famous Miss Tomlin! Ms.Tomlin Calls Cher Bono to Gossip Lily Tomlin on Merv Griffin Show Training Videos
Videos on Network and Telephone Services – Great Stuff Read More »
Views: 22,008Designing a successful network, telecommunications system, software platform, or technology product requires more than selecting the right technologies. It requires careful planning, architectural expertise, risk assessment, and a thorough understanding of how every component will interact within the larger ecosystem. Unfortunately, many projects encounter delays, budget overruns, performance issues, or deployment challenges because critical
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Views: 1,811This article was originally published on January 21st, 1999! Read this carefully. I’m going to explain to you that there is no Quality of Service (QoS) today with packet-based technologies. “No QoS?” you ask? Nope. Not even with ATM. Not yet. Let’s begin with addressing the two sides of the packet technology debate and
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Views: 1,574This article was originally published October 24th, 1998! Packetizing the network is very different from what some call the conversion of the network to ‘data’. Heck, the network has been all data now for twelve or thirteen years. The only part that isn’t one’s and zero’s is that last run of copper to the
The Net and the Airlines have a lot in Common Read More »
