RFC 1033 DOMAIN OPERATIONS GUIDE November 1987 You may only put data in your domain server that you are authoritative for. You must not add entries for domains other than your own (except for the special case of "glue records"). A domain server will probably read a file on start-up that lists the zones it should load into its database. The format of this file is not standardized and is different for most domain server implementations. For each zone it will normally contain the domain name of the zone and the file name that contains the data to load for the zone. ROOT SERVERS A resolver will need to find the root servers when it first starts. When the resolver boots, it will typically read a list of possible root servers from a file. The resolver will cycle through the list trying to contact each one. When it finds a root server, it will ask it for the current list of root servers. It will then discard the list of root servers it read from the data file and replace it with the current list it received. Root servers will not change very often. You can get the names of current root servers from the NIC. FTP the file NETINFO:ROOT-SERVERS.TXT or send a mail request to A. As of this date (June 1987) they are: SRI-NIC.ARPA 10.0.0.51 26.0.0.73 C.ISI.EDU 10.0.0.52 BRL-AOS.ARPA 192.5.25.82 192.5.22.82 128.20.1.2 A.ISI.EDU 26.3.0.103 RESOURCE RECORDS Records in the zone data files are called resource records (RRs). They are specified in RFC-883 and RFC-973. An RR has a standard format as shown: [] [] The record is divided into fields which are separated by white space. The name field defines what domain name applies to the given Lottor