domainname - set or print name of current YP/NIS domain
Synopsis Description Nota Bene See Also History
The domainname utility prints the name of the current YP/NIS domain. The super-user can set the domain name by supplying an argument; this is usually done in the network initialization script /etc/rc.network, normally run at boot time.
The YP/NIS (formerly Yellow Pages but renamed for legal reasons) domain name does not necessarily have anything to do with the Domain Name System domain name, although they are often set equal for administrative convenience.