PHP. Руководство по PHP. 2005
yp_get_default_domain
yp_get_default_domain
Description
string yp_get_default_domain (void)yp_get_default_domain() returns the default
domain of the node or FALSE. Can be used as the domain parameter
for successive NIS calls.
A NIS domain can be described a group of NIS maps. Every host
that needs to look up information binds itself to a certain
domain. Refer to the documents mentioned at the beginning for
more detailed information.
yp_first
yp_master
Отвечу на любые вопросы. С уважением, Дмитрий Владимирович.