Dr. Gregory D. Gleghorn

Information Technology

B.S. – Strayer University
M.S. – Keller Graduate School of Management
Ph.D. – Capella University
Dr. Gregory D. Gleghorn has worked in the information technology field for more than 16 years. His specializations include network security architecture, network implementation, network design and network support. He has incorporated information security into his experience naturally as the convergence of inter networks (voice, video, wireless and data) has dictated somewhat of a pseudo mandate that all information technology networking professionals should seriously contemplate having InfoSec as a significant part of their skill set.

Dr. Gleghorn has worked for corporations of all sizes both in commercial and government settings. As a United States Marine Corps veteran, he has worked on the largest private Intranet in the world: the Navy and Marine Corps Intranet (NMCI). During his time with NMCI, he traveled to numerous data centers for implementation, support or design, spanning from Hawaii to Puerto Rico and numerous points in between.

  • Certified Information Systems Security Professional (CISSP)
  • Cisco Certified Network Professional (CCNP)
  • Cisco VPN Specialist (CVPNS)
  • Cisco IOS Security Specialist (CSS)
  • Cisco Firewall Security Specialist (CFWSS)
  • Cisco ASA Specialist (CASAS)
  • Cisco Certified Network Associate with a concentration in Security (CCNA Security)
  • Cisco Certified Network Associate, Routing\Switching (CCNA RS)

Online Division

The flexibility of an online degree is convenient. Receiving that degree from a respected university? Even better. As one of the largest private universities in the southeast, our experience in career education is unparalleled.



Fort Knox Extension

Recognized as a military-friendly school, Sullivan University is proud to have served the Fort Knox community for over 30 years. In addition to serving active duty service members, veterans and their families, our full-service campus is also open to the local community.



Lexington Campus

This innovative campus is designed to help you develop real-world experience and the advanced training you’ll need to succeed.



Louisville Campus

Sullivan’s main campus is located in Louisville, Kentucky – a city with unlimited cultural and professional opportunities, including the area’s most diverse communities of restaurants, clubs and retail stores.