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NetBSD 6.1.5 - man page for ypbind (netbsd section 8)

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YPBIND(8)			   BSD System Manager's Manual				YPBIND(8)

     ypbind -- create and maintain a binding to a NIS server

     ypbind [-broadcast] [-insecure] [-ypset] [-ypsetme]

     ypbind finds the server for a particular NIS domain and stores information about it in a
     ``binding file''.	This binding information includes the IP address of the server associated
     with that particular domain and which port the server is using.  This information is stored
     in the directory /var/yp/binding in a file named with the convention <domain>.version, where
     <domain> is the relevant domain.  The NIS system only supplies information on version 2.

     If ypbind is started without the -broadcast option, ypbind steps through the list of NIS
     servers specified in /var/yp/binding/<domain>.ypservers and contacts each in turn attempting
     to bind to that server.  It is strongly recommended that these hosts are in the local hosts
     file, and that hosts are looked up in local files before the NIS hosts map.

     If ypbind is started with the -broadcast option, or if /var/yp/binding/<domain>.ypservers
     does not exist, ypbind broadcasts to find a process willing to serve maps for the client's

     Once a binding is established, ypbind maintains this binding by periodically communicating
     with the server to which it is bound.  If the binding is somehow lost, e.g by server reboot,
     ypbind marks the domain as unbound and attempts to re-establish the binding.  When the bind-
     ing is once again successful, ypbind marks the domain as bound and resumes its periodic

     The options are as follows:

     -broadcast  sends a broadcast requesting a NIS server to which to bind.

     -insecure	 do not require that the server is running on a reserved port.	This may be nec-
		 essary when connecting to SunOS 3.x or ULTRIX NIS servers.

     -ypset	 ypset(8) may be used to change the server to which a domain is bound.

     -ypsetme	 ypset(8) may be used only from this machine to change the server to which a
		 domain is bound.

     The -broadcast -ypset, and -ypsetme, options are inherently insecure and should be avoided.

     /var/yp/binding/<domain>.version - binding file for <domain>.
     /var/yp/binding/<domain>.ypservers - explicit list of servers to bind to for <domain>.

     Messages are sent to syslogd(8) using the LOG_DAEMON facility.

     domainname(1), ypcat(1), ypmatch(1), ypwhich(1), nis(8), yppoll(8), ypset(8)

     This version of ypbind was originally implemented by Theo de Raadt.  The ypservers support
     was implemented by Luke Mewburn.

BSD					February 26, 2005				      BSD
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