60 posts categorized "Wi-Fi" Feed

LMTV LIVE | Troubleshooting Tesla Model S Connectivity (with Jonathan Whiteside, Darrin Roach and Paul Offord)

Tesla Motors is very much at the forefront of the ‘Connected Vehicle’ revolution, producing vehicles with ‘always on’ connectivity through 4G LTE and WiFi. This gives the driver features such as Google Maps navigation, web access and Spotify.

If you had a connectivity issue with a Tesla Model S, how could you troubleshoot it?  Are specialist tools needed or could you just use standard kit?

In this week's session, Jonathan Whiteside and Darrin Roach of Advance7 describe an experiment to learn more about connected vehicle technology by tracing the data flows between a desktop PC app called Tesla Control, the Tesla Cloud Services and a Tesla Model S.  There were some challenges and a couple of surprises.

For more background information, see Jonathan's paper "Tesla Model S Remote Control" on the TribeLab site - https://community.tribelab.com/course/view.php?id=37

How Wi-Fi Works - A Visual ! (by Sam Carson)

How Wi-Fi Works!!!

A Full Motion Graphical Study!

Ever wonder how that wireless router in your home works? How can it maintain your internet connection through walls while your neighbors’ routers do the same?

Take look at The Bookmark’s 3D illustrative guide on How Wi-Fi Works.

The 3D animations bring to life the technologies that make wireless networks possible. Watch how signal encoding, radio transmission and data encryption deliver the internet to devices all throughout your home.

The basic 4 parts of WIFI - (WiFi stands for Wireless Fidelity)

Frequency band - Most Wi-Fi uses either 2.4Ghz or 5Ghz frequency bands

Channels - The main 2.4Ghz and 5Ghz signals are divided into sub-frequencies called channels.

Packets - Channels carry packets, or small groups of data.

Waves - Packets are made up of sets of waves.

Verizon Sam CarsonAuthor - Sam Carson - Sam graduated from NC State University with a degree in Meteorology. He loves to take casual hikes to Crowders Mountain and is often told he looks like the actor Woody Harrelson."

This was brought to our attention by - Rob Mitchell a Communication Specialist for The Bookmark on VerizonInternet.com, a Verizon authorized retailer.



A Wi-Fi Router as a Witness Device! (by Daniel Arrugueta)

A Wi-Fi Router as a Witness Device

Note: attached is the full document in .pdf format and is awesome reading for forensic investigators!

Download A WiFi Router as a Witness Device Full Document!

Witnesses often are crucial elements in solving and prosecuting criminal or civil violations.  We now regularly use data that various technologies record. Digital witness devices provide a source of largely unbiased and dependable information to the investigator and prosecutor. However, many often ignore or do not even recognize commonly available electronics as potential witness devices.  One such device is the wireless router found in most homes and businesses.

As with any witness, some sort of vetting and consideration is wise. Reliability, bias, memory, physical abilities, etc., all can be factors that play roles in the use of digital witness devices and the use of their data. Whether you consider data from digital cameras, microphones, cell phones, computers, or Wi-Fi (wireless) routers, you should approach each with an open eye and determine clearly what each actually offers to your investigation. Data typically is reliable; how you interpret and present that data is key to its ultimate usefulness. Criminal radiation

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LMTV LIVE | WiFi Analytics (with John Kerber, CEO of Who's On My WiFi)

YouTube Live Event Start Time : Wednesday, July 26, 2017 - 9:30 AM PST

Screen Shot 2017-07-24 at 10.38.10 AMOn this week's LMTV LIVE, John Kerber, the Technical Co-Founder of Who's On My WiFi will be on the show to discuss WiFi Analytics, privacy in the age of Analytics, and where things are headed with this technology.

Who's On My WiFi is a young, growing company, originally starting primarily in the network security space, but since the last time on the show, has made the transition to a WiFi Analytics company.

What is WiFi Analytics?

WiFi Analytics is a growing field that helps organizations make business decisions about physical locations based on the information already available on a computer network.

As an analogy, Web Analytics companies changed the view of parsing Web Server logs from being an IT Function specifically focused on either security or on website uptime, into more of a marketing or business development function focused on user behavior and increasing engagement that also aids in security or uptime.

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Capture packets with a standard Windows tool (by Paul Offord)

Wireshark is a great way to capture network packets, but it's not always practical to use it.  In an enterprise environment, at the very least, we need to get a change approved to install the software.  Often it is just not possible to get approval to install Wireshark onto a desktop or server.  So packet capture isn't possible - or is it?

Windows includes a rarely-used command line tool that has many of the capabilities of Wireshark dumpcap.  It's there ready and waiting, on every Windows machine!  Let's take a look at how we can use it.


Windows 2000 introduced a command line utility called netsh (network shell).  As the name suggests, netsh is a shell environment that provides commands that address network issues.  One of the commands it provides is netsh trace, a simple command line packet capture tool.

 In the following video ..

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