Jim Rizzo is a network engineer, security leader, and IT network and security subject matter expert with more than twenty-five years of IT and IT training experience. He currently works for GE Healthcare supporting networks, helping secure IT healthcare systems, and developing IT and healthcare privacy and security training for the healthcare industry. Along with his Cisco wired and wireless networking technologies base, Jim's focus includes protocol analysis, a variety of security topics such a
... mores Wifi security, VPN, tunneling, policy development, access control lists, and even healthcare privacy standards. Due to his industry experience with healthcare, Jim also works with healthcare communication protocol languages HL7 and DICOM. Jim lives and works in the Madison, Wisconsin area, where he lives with his family. He enjoys being outdoors, cooking, and brewing beers.
Betty DuBois is the Chief Detective for Packet Detectives, a network performance consulting and training firm based in Atlanta, GA. She has been solving mysteries since 1997. Experienced with a range of hardware and software packet capture solutions, she captures the right data, in the right place, and at the right time to find the real culprit. Betty shares her passion for packets as a presenter each year at SharkFest the Wireshark Developer and User Conference, and is active in the Wireshark c
... moreommunity. Using packets to solve crimes against the network and applications is her passion. Teaching others to do the same is her calling.
Greg has been a longtime "technology enthusiast" (aka "computer nerd") that managed to take his hobby and make a very good living out of it. He's dealt with networking software as far back as NetWare 3.11 and GroupWise and carried that curiosity forward to become skilled in Windows, Exchange, Cisco, and VMware technologies.
Nicholas (Nick) Russo, CCDE #20160041 and CCIE #42518, is an internationally recognized expert in IP/MPLS networking and design. To grow his skillset, Nick has been focused advancing Network DevOps via automation for his clients. Recently, Nick has been sharing his knowledge through online video training and speaking at industry conferences. Nick also holds a Bachelor's of Science in Computer Science from the Rochester Institute of Technology (RIT). Nick lives in Maryland, USA with his wife, Car
... morela, and daughters, Olivia and Josephine.
Sean Wilkins, with over two decades of experience in the IT industry, serves as a distinguished networking consultant and contributor at Tech Building Blocks. His professional journey spans multiple prominent enterprises, underlining his extensive field expertise. Sean's credentials include esteemed certifications from Cisco (CCNP/CCDP), Microsoft (MCSE), and CompTIA (A+ and Network+). Academically, he has achieved a Master’s of Science in Information Technology, specializing in Network Architec
... moreture and Design, complemented by a Master’s in Organizational Management.
Joe Abraham, CCIE #62417, is a Cybersecurity Architect working in the public sector space, assisting customers develop and implement functional and secure network architectures. He graduated from Excelsior College with an M.S. in Cybersecurity and a B.S. in Information Technology (Network Management). He currently holds many IT certifications to include CCIE, CISSP, GSEC, and CCNP Security. Joe is a mentor to IT professionals and a blogger who spends his time either with his wife and three child
... moreren, exercising, researching and writing about technology, or learning new technologies. Spending much of his experience helping to train and educate IT professionals, he is passionate about teaching and always strives to be a positive influence in the IT field.
David Clinton is a data analyst, an AWS Solutions Architect and a Linux server administrator. He's written books on cloud and Linux administration, IT security, and data analytics.
Aaron Staines has been employed in County Government for over 10 years. His current role is a Network Engineer, where he designs and maintains complex network environments. Aaron also worked as a Certified Michigan Police Officer for over 10 years, which give him a unique perspective on network security design and implementation. Aaron states that he’s been fortunate for having the opportunity to work with multiple vendor’s equipment, which he believes is a key to a well-rounded engineer. Some o
... moref the equipment Aaron has maintained includes Cisco, Juniper, Fortinet, and his favorite Ubiquiti. Aaron also maintains multiple industry leading certifications including a CCISO certification from the EC-Council. Aaron also holds a bachelor’s degree in IT from Western Governors University. Aaron is always willing to teach, and loves handing down knowledge to tomorrows next engineer, he hopes to see you in his classes on Pluralsight!
Professor Robert McMillen is a networking consultant with over 50 technical certifications. He has an MBA where he teaches Windows Server Administration at two colleges, and has earned his MCSE and MCT from Microsoft.
Robert McMillen is the president and founder of All Tech 1, a Portland-based network consulting company. Robert has over 20 years of experience in network engineering and earned certifications from companies like Microsoft, Checkpoint, IBM, and Cisco. He also hosts a weekly syndi
... morecated radio show called All Tech Radio.
Some of his higher profile jobs have been restoring email for the government to prosecute Enron executives, training the network vulnerability assessment team for the U.S. Army, and performing wireless security auditing for the State of Washington.
Chris Greer is a network analyst for Packet Pioneer, delivering training and packet analysis consulting services to customers all over the world. He specializes in using Wireshark to combat network and application performance problems on networks of all sizes. Chris leverages his 20 years of practical experience in network monitoring, analysis, and troubleshooting to heighten the experience of any attendee to his interactive and energetic courses.
When he is not digging deep into packets or te
... moreaching others the art of analyzing them, he can be found writing for several industry blogs, presenting on vendor webinars, recording tips for his YouTube channel or speaking at technology conferences including Sharkfest - the Wireshark Developer and User conference.
Tim McConnaughy is a network architect/engineer with over ten years of experience in network engineering. He has worked as a technical networking consultant to Fortune 500 companies and travelled the world designing and implementing co-located data centers and offices. Tim has also been a Cisco Live Speaker and holds a CCIE (#58615) in Route/Switch (Now Enterprise Infrastructure). He is a Cloud Solutions Architect at Aviatrix. When not networking, he enjoys eating ramen, playing video games, and
... more spending time with his family. He lives in North Carolina with two daughters, Josephine and Fiona, his wife Maria, and two cats, Link and Zelda.
Navidut (Naveed) Tauhid is an IT Consultant and Architect with more than 17 years of industry experience. He has deployed, maintained, and troubleshot numerous large-scale enterprise projects for many multinational companies. He has also provided training to thousands of IT students across the globe on various Unified Communication Products and helped them be their technical best. He is a certified CCIE Collaboration Written, CCNP Collaboration, Voicemail and Contact Center Specialist and CCNA R
... moreouting and Switching. He is also an Azure and AWS Cloud Certified Solution Architect. He is passionate about learning new technologies and loves sharing the knowledge.
17 courses
36 hours
