SOCKETMAP_TABLE
SOCKETMAP_TABLE
NAMESYNOPSIS
DESCRIPTION
PROTOCOL
REQUEST FORMAT
REPLY FORMAT
SECURITY
SEE ALSO
README FILES
BUGS
LICENSE
HISTORY
AUTHOR(S)
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 endponts 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
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