Linux in a Nutshell, Fifth Edition

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Chapter 3: Linux Commands

This is the Title of the Book, eMatter Edition

Copyright © 2006 O’Reilly & Associates, Inc. All rights reserved.

ypserv

ypserv [options]

NFS/NIS command. NIS server process. ypserv is a daemon

process typically activated at system startup time. It runs only on

NIS server machines with a complete NIS database. Its primary

function is to look up information in its local database of NIS

maps. The operations performed by ypserv are defined for the

implementor by the NIS protocol specification, and for the

programmer by the header file <rpcvc/yp_prot.h>. Communication

to and from ypserv is by means of RPC calls. On startup or when

receiving the signal SIGHUP, ypserv parses the file /etc/ypserv.conf.

ypserv supports securenets, which can be used to restrict access to

a given set of hosts.

Options

-b, --dns

Query the DNS service for host information if not found in the

hosts maps.

-d [path], --debug [path]

Run in debugging mode without going into background

mode, and print extra status messages to standard error for

each request. If path is specified, use it instead of /var/yp.

-p port, --port port

Bind to the specified port. For use with a router to filter

packets so that access from outside hosts can be restricted.

-v, --version

Print version information and exit.

Files and directories

/etc/yp.conf

Configuration file.

/var/yp/

domainname

Location of NIS databases for domainname.

/var/yp/Makefile ...