QUIC is Here! RFC 9000 (Chris Greer)

 After six years of development, the RFC's around the QUIC protocol have arrived. (Welcome to the world, QUIC!)

Actually, QUIC has been here as a draft for several years, particularly with Google services and chromium based browsers. The protocol has slowly evolved to include built-in TLS 1.3, HTTP/3, and TCP-like flow control and reliability.

Microsoft getmac and MAC Address

When troubleshooting it is quite common to get the mac address of the host, server or network equipment for a variety of reasons.

For example, many syslog messages or logs may refer to mac addresses depending on what the error is. If you are working from the switch, you more than likely need to know the mac address if you need to figure out which port the target is for your monitor or span command. And of course if you are using a protocol analyzer, you should always capture with a mac address, when possible.

Chasing the Ghost - Nobelist Fred Reines and the Neutrino: Review

 

Upon reading the title of this book, you might be tempted to judge it as too technical or perhaps too arcane to be of interest. If so, you would be missing out on a compelling narrative about an exceptional man and his lifelong quest to do something great. Chasing the Ghost – Nobelist Fred Reines and the Neutrino by Leonard A. Cole has just enough physics to interest and motivate the reader, while keeping the focus on the trials and triumphs in Fred Reines unique life. As Fred’s younger cousin, author Cole supplements his family knowledge of the early years with interviews of many prominent and influential physicists who knew Fred personally.

Our world is essentially made of four elementary particles - up and down quarks, electrons, and neutrinos. The latter is the ghost being chased, a particle that passes through the earth as if it were not even there and is extremely difficult (some physicists thought impossible) to detect. A thousand trillion neutrinos pass harmlessly through your body every second, and many of these were created shortly after the universe was born. Fred Reines called them “the most tiny quantity of reality ever imagined by a human being.” With that brief introduction to the neutrino, you cannot help but want to know more about the man who devoted the bulk of his professional life to finding and studying them.

Baselining Documentation - Next Step

 After capturing your data, you end up with a trace file. This next step is just as important as capturing the data since you can’t properly analyze or come to meaningful conclusions if you’re not sure where, when and how the data was captured.

This is where Wireshark’s “Capture File Properties” feature comes in. I use this to make notes about the capture such as: and time markers for events, physical location, vlan, contact info if other people were involved and other documents that might have diagrams, config or other info.

PC Bootup Baseline Setup

I’m sure everyone has heard of the old saying “garbage in, garbage out”. When it comes to baselining, troubleshooting, or any documentation this is the golden rule.

So I thought I would create a few videos explaining setup and analysis. The first one is the Bootup Baseline which usually applies to computers, but I have performed the same exercise on network equipment and appliances.