The NSRC started as a volunteer effort to support networking in southern Africa in 1988, when Bush designed, taught about, and helped deploy a multi-country network using varying technologies. The NSRC works with indigenous network engineers and operators who develop and maintain Internet infrastructure in their respective countries and regions by providing technical information, engineering assistance, training, donation of books, equipment and other resources.
Bush works as a Research Fellow and Network Operator at Internet Initiative Japan Research, Japan’s first commercial ISP. He was a founding engineer of Verio, and co-founded the Non-Commercial Domain Name Holders’ Constituency within ICANN’s DNSO. He is also a founding Board of Trustee member of the American Registry of Internet Numbers (ARIN).