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    WTF? Chrome Killed Access to .pcaps?!
    Ginny Spicer

    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
    Laura Chappell

    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!
    Laura Chappell

    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
    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.
    Packet Challenge: Look it Up in the Dictionary [100119]
    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.
    HTTP to HTTPS Redirection
    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.
    Troubleshooting SYNs of the Network
    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.
    Customize the Wireshark Expert
    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.
    GeoIP Mapping in Wireshark
    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!
    Analyze a Malicious HTTP Redirection
    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
    Spurious Retransmissions - a Concern?
    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?
    Get My Troubleshooting Profile
    Laura Chappell

    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
    Laura Chappell

    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
    Laura Chappell

    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
    Laura Chappell

    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)
    Laura Chappell

    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
    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...
    Wireshark v3 (Part 1 of 2)
    Laura Chappell

    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...
    Free TCP Analysis Poster
    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!...
    Infrastructure Interference
    Laura Chappell

    Infrastructure Interference

    While looking through some trace files the other day (you know, rather than go walk in the sunshine, grab lunch with friends, or any...

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