finds the server for NIS domains and maintains the NIS binding
information. The client (normally the NIS routines in the standard C library)
could get the information over RPC from
or read the binding files. The binding files resides in the directory
and are conventionally named
The supported versions are 1 and 2.
There could be several such files since it is possible for an NIS client
to be bound to more than one domain.
After a binding has been established,
will send YPPROC_DOMAIN requests to the current NIS server at 20 seconds
intervals. If it doesn't get an response or the NIS server reports that he
doesn't have this domain any longer,
will search for a new NIS server. All 15 minutes
will check to see if the current NIS server is the fastest. If it find
a server which answers faster, it will switch to this server.
You could tell
to use network broadcasts to find a new server, what is insecure,
or you could give it a list of known secure servers.
In this case
will send a ping to all servers and binds to first one which answers.
Unless the option
is used, ypbind detaches itself from the controlling terminal and puts
itself into background.
for logging errors and warnings.
At startup or when receiving signal SIGHUP,
parses the file
and tries to use the entries for its initial binding.
A broadcast entry in the configuration file will overwrite a ypserver/server
entry and a ypserver/server entry broadcast. If all given server are down,
switch to use broadcast.
will try at first
for resolving the hosts names from
couldn't reconfigure the search order, it will use only
isn't available, you could only use IP-addresses in
could only reconfigure the search order with glibc 2.x.
option is specified,
will ignore the configuration file.
If the file does not exist or if there are no valid entries,
version listens for DBUS messages from NetworkManager. If no NetworkManager
is running at startup,
will behave as usual and assumes there is a working network
connection. If NetworkManager is running on the system, ypbind will only
search and provide NIS informations, if NetworkManager tells that a network
connection is available. If NetworkManager establishes a connection,
will reread all configuration files, registers at the local portmapper and
try to search NIS servers. If NetworkManager drops a connection,
will unregister from portmapper.
Send a broadcast to request the information needed to bind to a
specific NIS server. With this option,
will be ignored.
from any remote machine to change the binding for a domain via the
command. By default, no one can change the binding. This option is really
insecure. If you change a binding for a domain, all the current known
servers for this domain will be forgotten. If the new server goes down,
will use the old searchlist.
The same as
on the local machine is allowed to change the binding. Such requests
are only allowed from
only checks if the config file has syntax errors and exits.
in debug mode.
will not put itself into background, and error messages and debug
output are written to standard error.
accept answers from servers running on an illegal port number. This should
usually be avoided, but is required by some
will not check if the binding is alive. This option is for use with
dialup connections to prevent
from keeping the connection unnecessarily open or causing autodials.
will only bind to the loopback device and is not reachable from
a remote network.
The default value for
to check, if a NIS server is still reachable, is 20 seconds.
With this options another frequency in seconds can be specified.
Disables DBUS support if compiled int.
Prints the version number
binding file containing information about each NIS domain.
contains the process id of the currently running