Expert Network Time Protocol: An Experience in Time with NTP

Peter Rybaczyk is an Internet working consultant, a technical author, an IT seminar conductor, and a business owner. He began his IT career as an application programmer, database administrator, and network administrator for Summit University Press during the 1980s. After staring his first consulting business in 1990, he consulted and worked with telecom equipment vendors (Nortel Networks, Ericsson, Cisco Systems), local and regional ISPs, voiceover IP providers, law firms, health care providers, auto dealerships, and banks. Rybaczyk has designed, installed, and managed numerous LANs and WANs in diverse multi-protocol environments. And he has delivered over 120 IT seminars worldwide. Earlier in the decade, he was involved for two years in the design, deployment, configuration, and management of a nation-wide VoIP network in the U.S. During his training career, Rybaczyk has conducted seminars on voiceover IP, routing protocols (OSPF and BGP), TCP/IP protocol suite, Cisco routers and switches, network management, WAN switches, and data networks design and optimization. He has developed custom training courses on Cisco WAN management products, OSPF, rapid development tools, and voiceover IP that he delivered to audiences in the U.S., Canada, Europe, Australia and Asia. He is a former Cisco Certified System Instructor (CCSI) for Cisco Products Solutions Essentials and Networking Fundamentals. Rybaczyk was the Master of Ceremonies at VoIP Congress 2003 in Singapore and VoIP Congress 2004 in Kuala Lumpur. Rybaczyk holds a bachelor's degree in physics from the University of Missouri, Saint Louis. He also holds several industry certifications including CNE, CCNA, and CCNP. Peter's IT consulting firm, Convergent Netcom Services, is located in Tucson, Arizona.