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Virtual Event Hosting and Video Streaming Troubleshooting

Last week, thousands of IT professionals and students joined us for CORE-IT, a free training/mentoring/badging event that we'd begun plan...

Laura Chappell

The "Legit" DDoS on PG&E

See the legitimate DDoS on PG&Es site after they announced that power would be shut off to upwards of 800,000 customers in October 2019.

Laura Chappell

Packet Challenge: Look it Up in the Dictionary [100119]

Packet Challenge: Look it up in the Dictionary - download the trace file and test your skills on this Packet Challenge.

Laura Chappell

HTTP to HTTPS Redirection

Get familiar with HTTP's 301 redirection process to a secure connections. Download the sample trace file and follow along.

Laura Chappell

Troubleshooting SYNs of the Network

After a painfully slow LinkedIn launch, I grabbed the traffic and saw some definite issues in the TCP handshake processes.

Laura Chappell

Customize the Wireshark Expert

Wireshark is a piece of clay. In this blog, Laura teaches you how to customize the Expert Information - an often overlooked feature.

Laura Chappell

GeoIP Mapping in Wireshark

A sexy features in Wireshark, for sure - global mapping based on MaxMind's GeoLite2 geolocation database files! Configure and use it today!

Laura Chappell

Analyze a Malicious HTTP Redirection

It was supposed to be a simple DNS name error trace file... but when I was suddenly redirected to a malicious URL, I went down a rabbit hole

Laura Chappell

Spurious Retransmissions - a Concern?

Should you be concerned about Spurious Retransmissions in a trace file? What triggers these indications and what should you do?

Laura Chappell

Network Forensics Cheat Sheet

I guess we're all a bunch of cheaters! <grin> I'll be putting together additional cheat sheets to make sure you are signed up for the New...

Laura Chappell

Free TCP Analysis Poster

The Chappell University team will be joining our Partner in Technology Education, Profitap, at Stand 3233 at RSA 2019 in San Francisco! I...

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