This a YP (NIS version 2) Server for Linux, but it also runs under
other OS like SunOS 4.1.x, Solaris 2.x, AIX, HP-UX, IRIS, Ultrix
and others.

This is NOT an NIS+ (NIS version 3) Server !

See the file COPYING for copying restrictions. It is available under
the GNU General Public License. 

The primary development site for ypserv is:
https://github.com/thkukuk/ypserv

1024 Byte limit in NIS protocol:
---------------------------------
The NIS protocol has one important limit: keys and data are limited
to 1024 bytes. Today most implementations (especially glibc and this
ypserv implementation) can handle longer keys and data. But this must
not be the case for every implementation, so be careful if you use
entries which are longer.