/etc/yp.conf is in nis 3.17-33.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 | #
# yp.conf Configuration file for the ypbind process. You can define
# NIS servers manually here if they can't be found by
# broadcasting on the local net (which is the default).
#
# See the manual page of ypbind for the syntax of this file.
#
# IMPORTANT: For the "ypserver", use IP addresses, or make sure that
# the host is in /etc/hosts. This file is only interpreted
# once, and if DNS isn't reachable yet the ypserver cannot
# be resolved and ypbind won't ever bind to the server.
# ypserver ypserver.network.com
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