NISPLUS_TABLE(5)	      File Formats Manual	      NISPLUS_TABLE(5)



NAME
       nisplus_table - Postfix NIS+ client

SYNOPSIS
       postmap -q "string" "nisplus:[name=%s];name.name."

       postmap -q - "nisplus:[name=%s];name.name." <inputfile

DESCRIPTION
       The  Postfix mail system uses optional lookup tables.  These tables are
       usually in dbm or db format.  Alternatively, lookup tables can be spec-
       ified as NIS+ databases.

       To  find	 out  what types of lookup tables your Postfix system supports
       use the "postconf -m" command.

       To test Postfix NIS+ lookup tables, use the  "postmap  -q"  command  as
       described in the SYNOPSIS above.

QUERY SYNTAX
       Most  of the NIS+ query is specified via the NIS+ map name. The general
       format of a Postfix NIS+ map name is as follows:

	   nisplus:[name=%s];name.name.name.:column

       Postfix NIS+ map names differ from what one  normally  would  use  with
       commands such as niscat:

       o      With  each  NIS+	table lookup, "%s" is replaced by a version of
	      the lookup string.  There can be only one	 "%s"  instance	 in  a
	      Postfix NIS+ map name.

       o      Postfix  NIS+ map names use ";" instead of ",", because the lat-
	      ter character is special in the Postfix main.cf  file.   Postfix
	      replaces	";"  characters	 in  the map name by "," before making
	      NIS+ queries.

       o      The ":column" part in the NIS+ map  name	is  not	 part  of  the
	      actual NIS+ query. Instead, it specifies the number of the table
	      column that provides the lookup result.  When  no	 ":column"  is
	      specified the first column (1) is used.

EXAMPLE
       A NIS+ aliases map might be queried as follows:

	   alias_maps = dbm:/etc/mail/aliases,
	       nisplus:[alias=%s];mail_aliases.org_dir.$mydomain.:1

       This queries the local aliases file before the NIS+ file.

SEE ALSO
       postmap(1), Postfix lookup table manager

README FILES
       Use  "postconf readme_directory" or "postconf html_directory" to locate
       this information.
       DATABASE_README, Postfix lookup table overview

LICENSE
       The Secure Mailer license must be distributed with this software.

AUTHOR(S)
       Geoff Gibbs
       UK-HGMP-RC
       Hinxton
       Cambridge
       CB10 1SB, UK

       Adopted and adapted by:
       Wietse Venema
       IBM T.J. Watson Research
       P.O. Box 704
       Yorktown Heights, NY 10598, USA



							      NISPLUS_TABLE(5)