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Linux 2.6 - man page for dnsblog (linux section 8postfix)

DNSBLOG(8postfix)								DNSBLOG(8postfix)

NAME
       dnsblog - Postfix DNS white/blacklist logger

SYNOPSIS
       dnsblog [generic Postfix daemon options]

DESCRIPTION
       The  dnsblog(8)	server	implements an ad-hoc DNS white/blacklist lookup service. This may
       eventually be replaced by an UDP client that is	built  directly  into  the  postscreen(8)
       server.

PROTOCOL
       With each connection, the dnsblog(8) server receives a DNS white/blacklist domain name, IP
       address, and an ID.  If the address is listed under  the  DNS  white/blacklist,	the  dns-
       blog(8)	server	logs  the match and replies with the query arguments plus an address list
       with the resulting IP addresses separated by whitespace.  Otherwise it  replies	with  the
       query  arguments  plus  an  empty address list.	Finally, The dnsblog(8) server closes the
       connection.

DIAGNOSTICS
       Problems and transactions are logged to syslogd(8).

CONFIGURATION PARAMETERS
       Changes to main.cf are picked up automatically, as dnsblog(8) processes	run  for  only	a
       limited amount of time. Use the command "postfix reload" to speed up a change.

       The text below provides only a parameter summary. See postconf(5) for more details includ-
       ing examples.

       config_directory (see 'postconf -d' output)
	      The default location of the Postfix main.cf and master.cf configuration files.

       daemon_timeout(18000s)
	      How much time a Postfix daemon process may take to handle a request  before  it  is
	      terminated by a built-in watchdog timer.

       postscreen_dnsbl_sites (empty)
	      Optional list of DNS white/blacklist domains, filters and weight factors.

       ipc_timeout(3600s)
	      The  time limit for sending or receiving information over an internal communication
	      channel.

       process_id (read-only)
	      The process ID of a Postfix command or daemon process.

       process_name (read-only)
	      The process name of a Postfix command or daemon process.

       queue_directory (see 'postconf -d' output)
	      The location of the Postfix top-level queue directory.

       syslog_facility (mail)
	      The syslog facility of Postfix logging.

       syslog_name (see 'postconf -d' output)
	      The mail system name that is prepended to the process name in  syslog  records,  so
	      that "smtpd" becomes, for example, "postfix/smtpd".

SEE ALSO
       smtpd(8), Postfix SMTP server
       postconf(5), configuration parameters
       syslogd(5), system logging

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

HISTORY
       This service was introduced with Postfix version 2.8.

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

										DNSBLOG(8postfix)


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