Wireshark v4 Profile Templates
When Wireshark v4 was released, I received a number of emails complaining about the new layout (Packet Details side-by-side with Packet...
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Packet Pub Quiz Time!
READY FOR SOME GEEKY FUN? Throughout my career in packet analysis, I've made some great friends with similar interests. Tony Fortunato...
WTF? Chrome Killed Access to .pcaps?!
As you may know, Chappell University has a trace file library on an FTP server (accessed via https://www.chappell-university.com/traces)....
Virtual Event Hosting and Video Streaming Troubleshooting
Updated: September 27th, 2020 In March, thousands of IT professionals and students joined us for CORE-IT, a free...
Join Me Online at CORE-IT!
CORE-IT is a FREE virtual conference offering training on core tools, protocols, and practices for the IT/cyber industry professionals...
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.
![Packet Challenge: Look it Up in the Dictionary [100119]](https://static.wixstatic.com/media/fe341d_e2dcd3b59f184d3da881dfeb1c9dc912~mv2.png/v1/fill/w_454,h_341,fp_0.50_0.50,q_95,enc_auto/fe341d_e2dcd3b59f184d3da881dfeb1c9dc912~mv2.png)
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.
HTTP to HTTPS Redirection
Get familiar with HTTP's 301 redirection process to a secure connections. Download the sample trace file and follow along.
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.
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.
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!
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
Spurious Retransmissions - a Concern?
Should you be concerned about Spurious Retransmissions in a trace file? What triggers these indications and what should you do?
Get My Troubleshooting Profile
This profile is primarily geared towards troubleshooting TCP communications with a buttons to detect application errors, as well.
Troubleshooting - The Golden Rule
Get the free Troubleshooting Cheat Sheet that we are handing out at Cisco Live.
Part 2 of 2: Spies, Espionage, Ransomware, and Harold
The NSA tool leak continues to plague the world as NotPetya takes down Ukranian computers, and we meet Hal999999999 and Israeli hackers.
Part 1 of 2: Spies, Espionage, Ransomware, and Harold
Part 1 of 2: NSA hacking tools are released by the ShadowBrokers, WannaCry begins to spread, Marcus is thanked and then indicted.
Wireshark v3 (Part 2 of 2)
In the last part of this two-part blog on Wireshark v3, we covered the following topics: Translations Npcap (No More WinPcap) UDP...
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...
Wireshark v3 (Part 1 of 2)
Typically, when a major release number changes (such as Wireshark v1 to v2), there is a grand and significant set of changes that make...
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