ypserv(8) - NetBSD Manual Pages

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YPSERV(8)               NetBSD System Manager's Manual               YPSERV(8)


NAME
ypserv -- NIS server daemon
SYNOPSIS
ypserv [-dfl] [-p port]
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. -p port Bind to the specified port instead of dynamically allocating one. 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 4.0 May 20, 2006 NetBSD 4.0
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