Extracts from ICANN Bylaws
To advise the Board about the operation of the root name servers of the domain name system.
To advise the Board on the operational requirements of root name servers, including host hardware capacities, operating systems and name server software versions, network connectivity and physical environment.
To examine and to advise on the security aspects of the root name server system.
To review the number, location, and distribution of root name servers considering the total system performance, robustness, and reliability.