<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[Chappell University]]></title><description><![CDATA[Chappell University]]></description><link>https://www.chappell-university.com/lauras-lab</link><generator>RSS for Node</generator><lastBuildDate>Sun, 14 Jun 2026 10:55:31 GMT</lastBuildDate><atom:link href="https://www.chappell-university.com/blog-feed.xml" rel="self" type="application/rss+xml"/><item><title><![CDATA[Keynote: Multiple Base Lunar Concept]]></title><description><![CDATA[Is there anything cooler than space? On 17 June, Dr. Daniel Tompkins (Founder of GrowMars) will present an IPNSIG Academy Keynote. Register today at ipnsig.org. As the IPNSIG Academy Lead (ipnsig.org), I invite you to join us at 9:00 am (Pacific Time) for this fascinating presentation focused on survivability (and growth) on the lunar surface.  From surface mobility to life support and radiation concerns, this is going to be an interesting presentation. Come join us!   The IPNSIG...]]></description><link>https://www.chappell-university.com/post/keynote-multiple-base-lunar-concept</link><guid isPermaLink="false">6a2c69cc418318a8f7e255dc</guid><category><![CDATA[Interplanetary Internet]]></category><pubDate>Fri, 12 Jun 2026 20:27:50 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/fe341d_f026ce8bc1784af1a442ddca4d782f2d~mv2.jpg/v1/fit/w_854,h_391,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Laura Chappell</dc:creator></item><item><title><![CDATA[HOT TIP: (Removing) Ads in Wireshark]]></title><description><![CDATA[Step-by-step customization tips to remove ads from Wireshark]]></description><link>https://www.chappell-university.com/post/hot-tip-removing-ads-in-wireshark</link><guid isPermaLink="false">69f3f67f7b1c42fb24f123e0</guid><pubDate>Fri, 01 May 2026 07:00:00 GMT</pubDate><enclosure url="http://youtu.be/GqZCPNCUhFo" length="0" type="video"/><dc:creator>Laura Chappell</dc:creator></item><item><title><![CDATA[Take the Christmas OSINT Challenge]]></title><description><![CDATA[Take the 2025 OSINT Challenge sponsored by Chappell University. Discover Santa's path.]]></description><link>https://www.chappell-university.com/post/christmas-osint-challenge</link><guid isPermaLink="false">694476289a41d93da04f048e</guid><category><![CDATA[investigations]]></category><pubDate>Thu, 18 Dec 2025 22:28:50 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/fe341d_3b0f5c78ba624001ad9b3533e7b7129f~mv2.jpg/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Laura Chappell</dc:creator></item><item><title><![CDATA[Grab the Free TCP Analysis Poster]]></title><description><![CDATA[Grab the TCP Analysis Poster - downloaded over 10,000 times so far!]]></description><link>https://www.chappell-university.com/post/grab-the-free-tcp-analysis-poster</link><guid isPermaLink="false">67fadfe1c9ecd448413ce7e3</guid><category><![CDATA[TCP]]></category><category><![CDATA[miscellaneous]]></category><pubDate>Sat, 12 Apr 2025 22:07:32 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/fe341d_a20aa784cda846a3891287baefa6df06~mv2.png/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Laura Chappell</dc:creator></item><item><title><![CDATA[Analyze Multiple SACK Blocks]]></title><description><![CDATA[Selective ACKs reduce the number of retransmissions on the network - enabling a receiver to indicate the missing Sequence Numbers while...]]></description><link>https://www.chappell-university.com/post/analyzing-sack-blocks</link><guid isPermaLink="false">6703244f9cf4f9b1d1758f1d</guid><pubDate>Wed, 09 Oct 2024 17:22:05 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/fe341d_766d30514ce14edebd9a2f6f52f940f4~mv2.jpg/v1/fit/w_1000,h_579,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Laura Chappell</dc:creator></item><item><title><![CDATA[Reading a Selective ACK (SACK) Block]]></title><description><![CDATA[If you've been capturing traffic for a while, you've likely encountered some Selective Acknowledgment blocks. Selective Acknowledgment...]]></description><link>https://www.chappell-university.com/post/reading-a-selective-ack-sack-block</link><guid isPermaLink="false">66faf84ac02ef79f7ad5b9dc</guid><pubDate>Tue, 01 Oct 2024 17:22:03 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/fe341d_888b05c8a7a74e7e9aa4e0ad19ea55f9~mv2.png/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Laura Chappell</dc:creator></item><item><title><![CDATA[NEW: Wireshark Auto-Switch Profiles]]></title><description><![CDATA[Wireshark version 4.4.0 just dropped last week and it has a cool new feature in it: auto-switch profiles! This may change how I use...]]></description><link>https://www.chappell-university.com/post/new-wireshark-auto-switch-profiles</link><guid isPermaLink="false">66d39c3e62ab046d2635e216</guid><pubDate>Tue, 03 Sep 2024 17:22:07 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/fe341d_f7dd98275c9c4055a1044884ae5f8e88~mv2.png/v1/fit/w_620,h_520,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Laura Chappell</dc:creator></item><item><title><![CDATA[Uber Humorous Wireshark]]></title><description><![CDATA[Last weekend, I settled in to watch the final episodes of Super Pumped: The Battle For Uber  on Netflix. After a week of intense work on...]]></description><link>https://www.chappell-university.com/post/wireshark-caught-in-action</link><guid isPermaLink="false">66cb56b7c6441f3133d9b265</guid><pubDate>Tue, 27 Aug 2024 17:22:03 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/fe341d_a5f08f8b471644b6be9154e88b6cc05c~mv2.jpg/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Laura Chappell</dc:creator></item><item><title><![CDATA[Importing Buttons into a Wireshark Profile]]></title><description><![CDATA[Buttons, buttons, buttons... one of the coolest features added to Wireshark. In the last blog, I showed you how to create a button. Now...]]></description><link>https://www.chappell-university.com/post/importing-buttons-into-a-wireshark-profile</link><guid isPermaLink="false">66b02b5c9d6acb175b741bcb</guid><pubDate>Tue, 20 Aug 2024 17:22:02 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/fe341d_b1a7916834254771b3321ac7c6325993~mv2.jpg/v1/fit/w_862,h_576,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Laura Chappell</dc:creator></item><item><title><![CDATA[Wireshark Tip: Make a Button for That!]]></title><description><![CDATA[Have you created buttons for Wireshark yet? Buttons enable you to apply your favorite display filters to your trace files quickly. When...]]></description><link>https://www.chappell-university.com/post/done-wireshark-tip-make-a-button-for-that</link><guid isPermaLink="false">66b0342c2329a35b0da84db9</guid><category><![CDATA[Wireshark]]></category><category><![CDATA[customization]]></category><category><![CDATA[DNS]]></category><pubDate>Tue, 13 Aug 2024 17:22:03 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/fe341d_537736f121fe4a569fa24f286bd45bed~mv2.png/v1/fit/w_433,h_287,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Laura Chappell</dc:creator></item><item><title><![CDATA[Wireshark Expert Explained: ACKed Segment that wasn't Captured]]></title><description><![CDATA[Should you be concerned if you see this Expert warning in your trace file? Maybe. There are several possible reasons these may be in your...]]></description><link>https://www.chappell-university.com/post/wireshark-expert-explained-acked-segment-that-wasn-t-captured</link><guid isPermaLink="false">667a26330e050ab46d3cfe61</guid><category><![CDATA[troubleshooting]]></category><category><![CDATA[Wireshark]]></category><pubDate>Tue, 06 Aug 2024 17:22:17 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/fe341d_4c03ad98ffac4ddab38deeff66d99e05~mv2.png/v1/fit/w_1000,h_359,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Laura Chappell</dc:creator></item><item><title><![CDATA[Wireshark Challenge 01  Answers]]></title><description><![CDATA[Did you get a chance to try out last week's Wireshark Challenge based on the chappell-WChallenge012024.pcapng? Too easy? If you didn't -...]]></description><link>https://www.chappell-university.com/post/wireshark-challenge-01-answers</link><guid isPermaLink="false">6670f5913213961bac5b35d9</guid><pubDate>Thu, 20 Jun 2024 05:17:04 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/fe341d_044e729555db407394ad551a74ccc520~mv2.png/v1/fit/w_415,h_181,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Laura Chappell</dc:creator></item><item><title><![CDATA[A Quick Wireshark Challenge]]></title><description><![CDATA[Test your Wireshark skills. Answers will be posted next week. Grab chappell-WChallenge012024.pcapng and take a few moments to answer the...]]></description><link>https://www.chappell-university.com/post/wireshark-challenge-june11</link><guid isPermaLink="false">666770af7f26a90c6f06781d</guid><category><![CDATA[challenge]]></category><pubDate>Tue, 11 Jun 2024 21:22:06 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/fe341d_6aaa2dcf40cc4c7cbb166b82877b0b49~mv2.png/v1/fit/w_1000,h_906,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Laura Chappell</dc:creator></item><item><title><![CDATA[Free Lab: Wireshark Layered Display Filters]]></title><description><![CDATA[The ability to look for a field or a field value at a specific layer is one of the many cool display filter enhancements recently added...]]></description><link>https://www.chappell-university.com/post/free-lab-wireshark-layered-display-filters</link><guid isPermaLink="false">661dd487d60fa8be340c9e7b</guid><category><![CDATA[Wireshark]]></category><pubDate>Tue, 28 May 2024 17:22:06 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/fe341d_f81ca6084fb046028c80c409713c1d1b~mv2.png/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Laura Chappell</dc:creator></item><item><title><![CDATA[The Must-Have Wireshark Column]]></title><description><![CDATA[The first column I add to every one of my custom Wireshark profiles is a "stream" column - a single column that indicates the index...]]></description><link>https://www.chappell-university.com/post/the-must-have-wireshark-column</link><guid isPermaLink="false">6641a1c4ee7ceb6c6835e519</guid><pubDate>Tue, 14 May 2024 21:11:19 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/fe341d_865a2e989f924e14921293aabb82034b~mv2.png/v1/fit/w_984,h_408,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Laura Chappell</dc:creator></item><item><title><![CDATA[It's TCP/IP's Birthday!]]></title><description><![CDATA[In 1974, the world was focused on the Rumble in the Jungle and Richard Nixon's resignation in disgrace. In that same year (in May), Vint...]]></description><link>https://www.chappell-university.com/post/tcpip-birthday</link><guid isPermaLink="false">6639302f85268d727be34fdf</guid><category><![CDATA[TCP]]></category><category><![CDATA[miscellaneous]]></category><pubDate>Tue, 07 May 2024 16:48:08 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/fe341d_b13b22831aba41058fa3dc5dfa3d7473~mv2.png/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Laura Chappell</dc:creator></item><item><title><![CDATA[Why Should You Learn TCP/IP?]]></title><description><![CDATA[If you understand TCP/IP and how your network communications work, you understand where to look when things go wrong. You also understand...]]></description><link>https://www.chappell-university.com/post/why-should-you-learn-tcpip</link><guid isPermaLink="false">5c86e51e9478b2001cad1ffa</guid><pubDate>Tue, 30 Apr 2024 20:24:40 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/628bb3a0f5914616bfe724922bab3f4d.jpg/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Laura Chappell</dc:creator></item><item><title><![CDATA[How to Improve Wireshark's "TCP Errors" Graph Line]]></title><description><![CDATA[The "Bad TCP" designation is seen in the coloring rules, while the "TCP Errors" designation is seen in the IO Graph. Are they the same?...]]></description><link>https://www.chappell-university.com/post/how-to-improve-wireshark-s-tcp-errors-graph-line</link><guid isPermaLink="false">661ddd0db9496a8938c12271</guid><category><![CDATA[Wireshark]]></category><category><![CDATA[customization]]></category><pubDate>Tue, 23 Apr 2024 16:22:08 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/fe341d_548b437d22044e99b683928ded0d407f~mv2.png/v1/fit/w_1000,h_816,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Laura Chappell</dc:creator></item><item><title><![CDATA[Quickly Add IO Graph Items in Wireshark]]></title><description><![CDATA[This is a quick tip that you'll love. By default, Wireshark's IO Graph depicts the packets per second rate of all traffic and "Bad TCP"...]]></description><link>https://www.chappell-university.com/post/quickly-add-io-graph-items-in-wireshark</link><guid isPermaLink="false">65efffe3c3f912e89171d3e3</guid><category><![CDATA[Wireshark]]></category><category><![CDATA[customization]]></category><pubDate>Wed, 17 Apr 2024 03:00:19 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/fe341d_0a8ef67a08b04f7085c3f3de1ec29a2b~mv2.gif/v1/fit/w_854,h_480,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Laura Chappell</dc:creator></item><item><title><![CDATA[TCP Sequence Number in ACK Scans]]></title><description><![CDATA[During a recent class, I received a question related to ACK scans. "What Sequence Number would you see on the response to an ACK scan?"...]]></description><link>https://www.chappell-university.com/post/tcp-sequence-numbers-in-ack-scans</link><guid isPermaLink="false">6609f44986513ba3d64d6955</guid><category><![CDATA[TCP]]></category><category><![CDATA[Wireshark]]></category><category><![CDATA[security]]></category><pubDate>Tue, 09 Apr 2024 20:37:43 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/fe341d_7abd55cb7e72410ea1c90b63750d6f75~mv2.png/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Laura Chappell</dc:creator></item></channel></rss>