<html> <head> </head> <body> <pre> POSTCONF(1) POSTCONF(1) <b>NAME</b> postconf - Postfix configuration utility <b>SYNOPSIS</b> <b>postconf</b> [<b>-dhmlnv</b>] [<b>-c</b> <i>config_dir</i>] [<i>parameter</i> <i>...</i>] <b>postconf</b> [<b>-ev</b>] [<b>-c</b> <i>config_dir</i>] [<i>parameter=value</i> <i>...</i>] <b>DESCRIPTION</b> The <b>postconf</b> command prints the actual value of <i>parameter</i> (all known parameters by default) one parameter per line, changes its value, or prints other information about the Postfix mail system. Options: <b>-c</b> <i>config_dir</i> The <b>main.cf</b> configuration file is in the named directory instead of the default configuration directory. <b>-d</b> Print default parameter settings instead of actual settings. <b>-e</b> Edit the <b>main.cf</b> configuration file. The file is copied to a temporary file then renamed into place. Parameters and values are specified on the command line. Use quotes in order to protect shell metacharacters and whitespace. <b>-h</b> Show parameter values only, not the ``name = '' label that normally precedes the value. <b>-l</b> List the names of all supported mailbox locking methods. Postfix supports the following methods: <b>flock</b> A kernel-based advisory locking method for local files only. This locking method is available only on systems with a BSD compat- ible library. <b>fcntl</b> A kernel-based advisory locking method for local and remote files. <b>dotlock</b> An application-level locking method. An application locks a file named <i>filename</i> by creating a file named <i>filename</i><b>.lock</b>. The application is expected to remove its own lock file, as well as stale lock files that were left behind after abnormal termination. <b>-m</b> List the names of all supported lookup table types. Postfix lookup tables are specified as <i>type</i><b>:</b><i>name</i>, where <i>type</i> is one of the types listed below. The table <i>name</i> syntax depends on the lookup table type. <b>btree</b> A sorted, balanced tree structure. This is available only on systems with support for Berkeley DB databases. <b>dbm</b> An indexed file type based on hashing. This is available only on systems with support for DBM databases. <b>environ</b> The UNIX process environment array. The lookup key is the variable name. Originally implemented for testing, someone may find this useful someday. <b>hash</b> An indexed file type based on hashing. This is available only on systems with support for Berkeley DB databases. <b>ldap</b> (read-only) Perform lookups using the LDAP protocol. This is described in an LDAP_README file. <b>mysql</b> (read-only) Perform lookups using the MYSQL protocol. This is described in a MYSQL_README file. <b>pcre</b> (read-only) A lookup table based on Perl Compatible Reg- ular Expressions. The file format is described in <a href="pcre_table.5.html"><b>pcre</b><i>_</i><b>table</b>(5)</a>. <b>proxy</b> (read-only) A lookup table that is implemented via the Postfix <a href="proxymap.8.html"><b>proxymap</b>(8)</a> service. The table name syntax is <i>type</i><b>:</b><i>name</i>. <b>regexp</b> (read-only) A lookup table based on regular expressions. The file format is described in <a href="regexp_table.5.html"><b>reg-</b> <b>exp</b><i>_</i><b>table</b>(5)</a>. <b>static</b> (read-only) A table that always returns its name as lookup result. For example, <b>static:foobar</b> always returns the string <b>foobar</b> as lookup result. <b>unix</b> (read-only) A limited way to query the UNIX authentica- tion database. The following tables are implemented: <b>unix:passwd.byname</b> The table is the UNIX password database. The key is a login name. The result is a password file entry in passwd(5) format. <b>unix:group.byname</b> The table is the UNIX group database. The key is a group name. The result is a group file entry in group(5) format. Other table types may exist depending on how Postfix was built. <b>-n</b> Print non-default parameter settings only. <b>-v</b> Enable verbose logging for debugging purposes. Mul- tiple <b>-v</b> options make the software increasingly verbose. <b>DIAGNOSTICS</b> Problems are reported to the standard error stream. <b>ENVIRONMENT</b> <b>MAIL</b><i>_</i><b>CONFIG</b> Directory with Postfix configuration files. <b>LICENSE</b> The Secure Mailer license must be distributed with this software. <b>AUTHOR(S)</b> Wietse Venema IBM T.J. Watson Research P.O. Box 704 Yorktown Heights, NY 10598, USA POSTCONF(1) </pre> </body> </html>