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    Command:

    ypbind

    
    
    

    SYNOPSIS

           ypbind  [ -c ] [ -d|-debug ] [ -broadcast ] [ -broken-server ] [ -ypset
           ] [ -ypsetme ] [ -no-ping ] [ -f configfile ] [ -local-only ] [  -ping-
           interval ping-interval ] [ -no-dbus ]
    
           ypbind --version
    
    
    

    DESCRIPTION

           ypbind  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 ypbind or read the
           binding files. The binding files resides in the directory /var/yp/bind-
           ing and are conventionally named [domainname].[version].  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, ypbind 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, ypbind will search for a new NIS server. All 15
           minutes  ypbind  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 ypbind 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 ypbind will send a ping to all servers
           and binds to first one which answers.
    
           Unless the option -debug is used, ypbind detaches itself from the  con-
           trolling  terminal  and  puts itself into background.  ypbind uses sys-
           log(3) for logging errors and warnings.  At startup or  when  receiving
           signal SIGHUP, ypbind parses the file /etc/yp.conf 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, ypbind will not switch to use broadcast.  ypbind
           will try at first /etc/hosts and then DNS for resolving the hosts names
           from /etc/yp.conf.  If ypbind couldn't reconfigure the search order, it
           will  use  only  DNS.   If  DNS isn't available, you could only use IP-
           addresses in /etc/hosts.  ypbind  could  only  reconfigure  the  search
           order  with  glibc  2.x.  If the -broadcast option is specified, ypbind
           will ignore the configuration file.  If the file does not exist  or  if
           there are no valid entries, ypbind exit.
    
           This  ypbind  version listens for DBUS messages from NetworkManager. If
           no NetworkManager is running at startup, ypbind 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 informa-
           tions,  if NetworkManager tells that a network connection is available.
           If NetworkManager establishes a connection, ypbind will reread all con-
           figuration  files,  registers at the local portmapper and try to search
           NIS servers. If NetworkManager drops a connection, ypbind will unregis-
                  will use the old searchlist.
    
           -ypsetme
                  The same as -ypset, but  only  root  on  the  local  machine  is
                  allowed  to  change  the binding. Such requests are only allowed
                  from loopback.
    
           -c     ypbind only checks if the config  file  has  syntax  errors  and
                  exits.
    
           -debug starts  ypbind  in  debug mode.  ypbind will not put itself into
                  background, and error messages and debug output are  written  to
                  standard error.
    
           -broken-server
                  lets  ypbind  accept  answers from servers running on an illegal
                  port number. This should usually be avoided, but is required  by
                  some ypserv(8) versions.
    
           -no-ping
                  ypbind  will  not  check if the binding is alive. This option is
                  for use with dialup connections to prevent ypbind  from  keeping
                  the connection unnecessarily open or causing autodials.
    
           -f configfile
                  ypbind will use configfile and not /etc/yp.conf
    
           -local-only
                  ypbind  will  only bind to the loopback device and is not reach-
                  able from a remote network.
    
           -ping-interval ping-interval
                  The default value for ypbind to check, if a NIS server is  still
                  reachable,  is  20 seconds.  With this options another frequency
                  in seconds can be specified.
    
           -no-dbus
                  Disables DBUS support if compiled int.
    
           --version
                  Prints the version number
    
    
    

    FILES

           /etc/yp.conf
                  configuration file.
    
           /var/yp/binding/[domainname].[version]
                  binding file containing information about each NIS domain.
    
           /var/run/ypbind.pid
                  contains the process id of the currently running  ypbind  master
    
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