If you had met Jon Postel in 1998, you might have been surprised to learn that you were in the presence of one of the Internet’s greatest living authorities. He had a rambling, ragged look, living in sandals and a large, unkempt beard. He lived like a modern-day Obi-Wan Kenobi, an academic hermit who favored solitary walks on the Southern California beach. When told once by a reporter that readers were interested in learning more about his personal life, he answered: “If we tell them, they won’t be interested anymore.” Yet this man was, and had been for as long as anyone could remember, the ultimate authority for assignment of the all-important Internet Protocol (IP) numbers that are the essential feature of Internet membership. Like the medallions assigned to New York City taxicabs, each globally unique number identifies a computer on the Net, determining who belongs and who doesn’t. “If the Net does have a God,” wrote the Economist in 1997, “he is probably Jon Postel.” Jon Postel was a quiet man who kept strong opinions and sometimes acted in surprising ways. The day of January 28, 1998, provided the best example. On that day Postel wrote an e-mail to the human operators of eight of the twelve “name servers” around the globe. Name servers are the critical computers that are ultimately responsible for making sure that when you type a name like google.com you reach the right address (123.23.83.0). On that day Postel asked the eight operators, all personally loyal to Postel, to recognize his computer as the “root,” or, in essence, the master computer for the whole Internet. The operators complied, pointing their servers to Postel’s computer instead of the authoritative root controlled by the United States government. The order made the operators nervous—Paul Vixie, one of the eight, quietly arranged to have someone look after his kids in case he was arrested. Postel was playing with fire. His act could have divided the Internet’s critical naming system into two gigantic networks, one headed by himself, the other headed by the United States. He engineered things so that the Internet continued to run smoothly. But had he wanted to during this critical time, he might have created chaos.
