ypserv(8)
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YPSERV(8) NetBSD System Manager's Manual YPSERV(8)
NAME
ypserv -- NIS server daemon
SYNOPSIS
ypserv [-dfl]
DESCRIPTION
ypserv is a fundamental part of the network information system called
NIS. This server provides information from NIS maps to the NIS clients
on the network.
A NIS map is stored on the server as a db(3) database. A number of NIS
maps is grouped together in a domain. ypserv determines the domains it
serves by looking for a directory with the domain name in /var/yp.
In an effort to improve the security of NIS (which has, historically, not
been very good), this ypserv has support for libwrap-based access con-
trol. See hosts_access(5) for more information. The daemon used for
access control is the name which ypserv was invoked as (typically
``ypserv'' ). If a host is not allowed to query this NIS server, ypserv
will return the NIS result code YP_NODOM.
The process pid of the ypserv process can be found in the file
/var/run/ypserv.pid.
The options are as follows:
-d Use internet Domain Name System. If a query to map hosts.byname
or hosts.byaddr fails, make a DNS query and return the result if
successful.
-f Run in the foreground.
-l Enable logging of all requests.
All messages are sent to the system log with the facility LOG_DAEMON.
Error messages have the priority LOG_ERR. Refused requests are logged
with the priority LOG_WARNING. All other messages are logged with the
priority LOG_INFO.
FILES
/var/run/ypserv.pid
SEE ALSO
syslog(3), hosts_access(5), nis(8), syslogd(8), ypbind(8), ypinit(8)
AUTHORS
This implementation of ypserv was originally written by Mats O Jansson
<moj@stacken.kth.se>. The access control code was later re-written from
scratch by
Jason R. Thorpe <thorpej@NetBSD.org>.
NetBSD 3.1 February 26, 2005 NetBSD 3.1
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