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namepool(4)							  namepool(4)



NAME

  namepool - DHCP server database

DESCRIPTION

  The namepool database	provides joind with names that are available for
  dynamic assignment to	clients	of the DHCP protocol.  For each	DHCP server
  and domain name (NIS or DNS),	the database contains a	collection of names
  available for	allocation to DHCP clients within those	domains. One name
  plays	a distinguished	role - it is used as a prefix when the pool has	been
  exhausted.  Names are	generated from the prefix by appending a number,
  1,2.., and a trailing	'd'. The namepool file is read whenever	joind starts.
  Names	within the database must not be	allocated to hosts which are not DHCP
  clients, and if the administration of	a domain is shared between several
  DHCP servers,	the namepools that each	has must be disjoint. Names may	be
  added	and removed from the namepool file.  If	a name is removed from the
  file it remains bound	to the client to which it was allocated; if no such
  binding is in	effect the name	is excised from	the server's pool the next
  time the server starts.  Once	a name is dynamically bound to a host it will
  never	be reused even if that host subsequently acquires a new	name, but
  there	is no need to remove it	from namepool.

  FORMAT


  Blank	lines and lines	beginning with a number	sign (#) are ignored.  A new
  entry	must begin in column one and has one of	the following formats:
  domain  server
  domain  server  name_prefix

  The domain variable is the domain in which the names which follow are
  assigned.
  The server variable is the name or IP	address	of the server in charge	of
  allocating these names to clients.
  The prefix variable is the prefix that will be used when the pool is
  exhausted.

  Succeeding lines contain one or more names for domains that are to be	allo-
  cated	by the server.	Each of	these succeeding lines must begin with at
  least	one white space	character.

FILES

  /etc/join/namepool

RELATED	INFORMATION

  joind(8), join.ipaddresses(4)