IT Trenches:

protocol analysis


March 29, 2010  2:14 PM

Wireshark Book – Coffee & a Quickie



Posted by: Troy Tate
ethereal, Laura Chappell, network, network analysis, packet analysis, packet capture, protocol analysis, technology reference, wireshark

Laura Chappell,

December 18, 2009  8:33 PM

Broadcast traffic told me the network was contaminated



Posted by: Troy Tate
broadcast, network analysis, packet capture, protocol analysis, troubleshooting

If you don't know what's broadcasting on your network, you don't know your network! I recently discovered a rogue network cross-connection on a network. The cross connect was from an unmanaged internet connection to a private LAN. The way I discovered this was using Wireshark and listening for all...


October 15, 2009  6:44 PM

Free Training – Laura Chappell presents: Wireshark 201 Jumpstart – Filtering on the Good, the Bad, the Ugly



Posted by: Troy Tate
analysis, education, ethereal, howto, IT education, Laura Chappell, Metrics, Monitoring, network analysis, Networking, packet analysis, packet capture, performance monitoring, protocol analysis, reporting, tcp/ip, tools, trace files, training, troubleshooting, wireshark

Laura Chappel, the BitGirl, is at it again with another in her series of Wireshark Jumpstart webinars. The next one is called


September 30, 2009  1:06 PM

Where do TCP resets come from?



Posted by: Troy Tate
application performance, network analysis, network management, network monitoring, network performance, packet capture, performance analysis, protocol analysis, tcp, udp

I recently came across an excellent article on the topic of TCP resets. TCP is a connection-oriented protocol as opposed to the connectionless nature of UDP. So, if there are TCP resets on your network, this is not a bad thing and is just inherent in the protocol. Without TCP resets, a host could...


July 20, 2009  6:36 PM

Wireshark quickstart tutorial – learn to capture network traffic



Posted by: Troy Tate
analysis, education, ethereal, howto, IT education, Laura Chappell, Metrics, Monitoring, network analysis, Networking, packet analysis, packet capture, performance monitoring, protocol analysis, reporting, tcp/ip, tools, trace files, training, troubleshooting, wireshark

There are more upcoming sessions in the Laura Chappell seminar series called Wireshark 101Jumpstart tutorials. Check out the schedule at Chappell University website. Some of the things you will learn include:


May 26, 2009  7:34 PM

Repetition is one of the keys of learning



Posted by: Troy Tate
analysis, education, ethereal, howto, IT education, Laura Chappell, Metrics, Monitoring, network analysis, Networking, packet analysis, packet capture, performance monitoring, protocol analysis, reporting, tcp/ip, tools, trace files, training, troubleshooting, wireshark

I recently posted an update about Laura Chappell's Chappell University Online seminars. I attended one of these seminars today. What...


May 21, 2009  12:57 PM

Master key tasks for network troubleshooting – Chappell University Online Seminars



Posted by: Troy Tate
analysis, education, ethereal, howto, IT education, Metrics, Monitoring, network analysis, Networking, packet analysis, packet capture, performance monitoring, protocol analysis, reporting, tcp/ip, tools, trace files, training, troubleshooting, wireshark

I'm a huge fan of Laura Chappell. She has a great sense of humor and is a great educator about all things packet oriented. Previous posts about Laura have included:

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April 29, 2009  12:11 PM

Doing Microsoft packet analysis? – Microsoft releases Network Monitor 3.3



Posted by: Troy Tate
analysis, analysis tools, Microsoft, network, network analysis, network monitor, packet analysis, packet capture, protocol analysis, tcp, tools, udp

If you do packet capture or analysis in a Microsoft environment, then you are probably already familiar with Microsoft Network Monitor. If not, please read my real-world use of it for


March 23, 2009  3:57 PM

Need help? Ask questions – help someone – read my blog & win one of 3 XBox 360′s



Posted by: Troy Tate
analysis tools, Cisco, contest, network capacity, network throughput, protocol analysis, Security, social engineering, social networking, tools, xbox

Looking for some help on some troublesome IT isssues? Post your question on IT Knowledge Exchange. Maybe take some time to read through some of the questions on ITKE. Provide an answer or even improve...


February 19, 2009  1:47 PM

Is protocol analysis or network management your thing?



Posted by: Troy Tate
education, ethereal, network analysis, packet analysis, packet capture, protocol analysis, tcp/ip, trace files, training, wireshark

Laura Chappell (the Viral Bitgirl) has announced that Sharkfest 09 registration is open and all registered attendees get a FREE AIRPCAP ADAPTER (US $198)! Sharkfest is the...


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