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SOCKETMAP_TABLE

Section: File Formats (5)
Index Return to Main Contents
 

NAME

socketmap_table - Postfix socketmap table lookup client  

SYNOPSIS

postmap -q "string" socketmap:inet:host:port:name

postmap -q "string" socketmap:unix:pathname:name postmap -q - socketmap:inet:host:port:name <inputfile
postmap -q - socketmap:unix:pathname:name <inputfile
 

DESCRIPTION

The Postfix mail system uses optional tables for address rewriting. mail routing or policy lookup.

The Postfix socketmap client expects TCP endpoint names of the form inet:host:port:name, or UNIX-domain endpoints of the form unix:pathname:name. In both cases, name specifies the name field in a socketmap client request (see "REQUEST FORMAT" below).  

PROTOCOL



Socketmaps use a simple protocol: the client sends one
request, and the server sends one reply.  Each request and
reply are sent as one netstring object.
 

REQUEST FORMAT



The socketmap protocol supports only the lookup request.

Postfix will not generate partial search keys such as domain names without one or more subdomains, network addresses without one or more least-significant octets, or email addresses without the localpart, address extension or domain portion. This behavior is also found with cidr:, pcre:, and regexp: tables.

name <space> key
Search the named socketmap for the specified key.
 

REPLY FORMAT



The Postfix socketmap client requires that replies are not
longer than 100000 characters (not including the netstring
encapsulation). Replies must have the following form:
OK <space> data
The requested data was found.
NOTFOUND <space>
The requested data was not found.
TEMP <space> reason
TIMEOUT <space> reason
PERM <space> reason
The request failed. The reason, if non-empty, is descriptive text.
 

SECURITY

This map cannot be used for security-sensitive information,
because neither the connection nor the server are authenticated.
 

SEE ALSO

http://cr.yp.to/proto/netstrings.txt, netstring definition
postconf(1), Postfix supported lookup tables
postmap(1), Postfix lookup table manager
regexp_table(5), format of regular expression tables
pcre_table(5), format of PCRE tables
cidr_table(5), format of CIDR tables
 

README FILES



Use "postconf readme_directory" or
"postconf html_directory" to locate this information.

DATABASE_README, Postfix lookup table overview
 

BUGS

The protocol limits are not yet configurable.  

LICENSE



The Secure Mailer license must be distributed with this software.
 

HISTORY

Socketmap support was introduced with Postfix version 2.10.
 

AUTHOR(S)

Wietse Venema
IBM T.J. Watson Research
P.O. Box 704
Yorktown Heights, NY 10598, USA


 

Index

NAME
SYNOPSIS
DESCRIPTION
PROTOCOL
REQUEST FORMAT
REPLY FORMAT
SECURITY
SEE ALSO
README FILES
BUGS
LICENSE
HISTORY
AUTHOR(S)


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