Ginny SpicerWTF? 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)....
Laura ChappellVirtual Event Hosting and Video Streaming TroubleshootingUpdated: September 27th, 2020 In March, thousands of IT professionals and students joined us for CORE-IT, a free...
Laura ChappellJoin 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...
Laura ChappellThe "Legit" DDoS on PG&ESee 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 ChappellPacket 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 ChappellHTTP to HTTPS RedirectionGet familiar with HTTP's 301 redirection process to a secure connections. Download the sample trace file and follow along.
Laura ChappellTroubleshooting 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 ChappellCustomize the Wireshark ExpertWireshark is a piece of clay. In this blog, Laura teaches you how to customize the Expert Information - an often overlooked feature.
Laura ChappellGeoIP Mapping in WiresharkA sexy features in Wireshark, for sure - global mapping based on MaxMind's GeoLite2 geolocation database files! Configure and use it today!
Laura ChappellAnalyze a Malicious HTTP RedirectionIt 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 ChappellSpurious Retransmissions - a Concern?Should you be concerned about Spurious Retransmissions in a trace file? What triggers these indications and what should you do?
Laura ChappellGet My Troubleshooting ProfileThis profile is primarily geared towards troubleshooting TCP communications with a buttons to detect application errors, as well.
Laura ChappellTroubleshooting - The Golden RuleGet the free Troubleshooting Cheat Sheet that we are handing out at Cisco Live.
Laura ChappellPart 2 of 2: Spies, Espionage, Ransomware, and HaroldThe NSA tool leak continues to plague the world as NotPetya takes down Ukranian computers, and we meet Hal999999999 and Israeli hackers.
Laura ChappellPart 1 of 2: Spies, Espionage, Ransomware, and HaroldPart 1 of 2: NSA hacking tools are released by the ShadowBrokers, WannaCry begins to spread, Marcus is thanked and then indicted.
Laura ChappellWireshark 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...
Laura ChappellNetwork Forensics Cheat SheetI 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...
Laura ChappellWireshark 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...
Laura ChappellFree TCP Analysis PosterThe Chappell University team will be joining our Partner in Technology Education, Profitap, at Stand 3233 at RSA 2019 in San Francisco!...
Laura ChappellInfrastructure InterferenceWhile looking through some trace files the other day (you know, rather than go walk in the sunshine, grab lunch with friends, or any...