The namespace data set used by NIS is stored in a set of NIS maps. NIS maps are essentially two-column tables.
Table 10-3 describes the default NIS maps, information they contain, and whether the operating system consults the corresponding administrative files when NIS is running.
Table 10-3 NIS Map Descriptions| 
 Map Name  | 
 Corresponding NIS Admin File  | 
 Description  | 
|---|---|---|
| 
 bootparams  | 
 bootparams  | 
 Contains path names of files clients need during boot: root, swap, possibly others.  | 
| 
 ethers.byaddr  | 
 ethers  | 
 Contains machine names and Ethernet addresses. The Ethernet address is the key in the map.  | 
| 
 ethers.byname  | 
 ethers  | 
 Same as ethers.byaddr, except the key is machine name instead of the Ethernet address.  | 
| 
 group.bygid  | 
 group  | 
 Contains group security information with group ID as key.  | 
| 
 group.byname  | 
 group  | 
 Contains group security information with group name as key.  | 
| 
 hosts.byaddr  | 
 hosts  | 
 Contains machine name, and IP address, with IP address as key.  | 
| 
 hosts.byname  | 
 hosts  | 
 Contains machine name and IP address, with machine (host) name as key.  | 
| 
 mail.aliases  | 
 aliases  | 
 Contains aliases and mail addresses, with aliases as key.  | 
| 
 mail.byaddr  | 
 aliases  | 
 Contains mail address and alias, with mail address as key.  | 
| 
 netgroup.byhost  | 
 netgroup  | 
 Contains group name, user name, and machine name.  | 
| 
 netgroup.byuser  | 
 netgroup  | 
 Same as netgroup.byhost, except that key is user name.  | 
| 
 netgroup  | 
 netgroup  | 
 Same as netgroup.byhost, except that key is group name.  | 
| 
 netid.byname  | 
 passwd, hosts, group  | 
 Used for UNIX-style authentication. Contains the netname database. If there is a netid file available it is consulted in addition to the data available through the other files.  | 
| 
 netmasks.byaddr  | 
 netmasks  | 
 Contains network mask to be used with IP subnetting, with the address as the key.  | 
| 
 networks.byaddr  | 
 networks  | 
 Contains names of networks known to your system and their IP addresses, with the address as the key.  | 
| 
 networks.byname  | 
 networks  | 
 Same as networks.byaddr, except the key is the name of the network.  | 
| 
 passwd.adjunct. byname  | 
 passwd and shadow  | 
 Contains auditing information and the hidden password information for C2 clients.  | 
| 
 passwd.byname  | 
 passwd and shadow  | 
 Contains password information with user name as key.  | 
| 
 passwd.byuid  | 
 passwd and shadow  | 
 Same as passwd.byname, except that the key is user ID.  | 
| 
 protocols.byname  | 
 protocols  | 
 Contains network protocols known to your network.  | 
| 
 protocols.bynumber  | 
 protocols  | 
 Same as protocols.byname, except that key is protocol number.  | 
| 
 rpc.bynumber  | 
 rpc  | 
 Contains program number and name of RPCs known to your system. Key is RPC program number.  | 
| 
 services.byname  | 
 services  | 
 Lists Internet services known to your network. Key is port and protocol.  | 
| 
 services.byservice  | 
 services  | 
 Lists Internet services known to your network. Key is service name.  | 
| 
 ypservers  | 
 N/A  | 
 Lists NIS servers known to your network.  | 
See Solaris Naming Administration Guide for information on modifying NIS maps after they are created.