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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:46:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:46:30 +0000 |
| commit | b5896ba9f6047e7031e2bdee0622d543e11a6734 (patch) | |
| tree | fd7b460593a2fee1be579bec5697e6d887ea3421 /html/master.8.html | |
| parent | Initial commit. (diff) | |
| download | postfix-b5896ba9f6047e7031e2bdee0622d543e11a6734.tar.xz postfix-b5896ba9f6047e7031e2bdee0622d543e11a6734.zip | |
Adding upstream version 3.4.23.upstream/3.4.23upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'html/master.8.html')
| -rw-r--r-- | html/master.8.html | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/html/master.8.html b/html/master.8.html new file mode 100644 index 0000000..e068028 --- /dev/null +++ b/html/master.8.html @@ -0,0 +1,219 @@ +<!doctype html public "-//W3C//DTD HTML 4.01 Transitional//EN" + "http://www.w3.org/TR/html4/loose.dtd"> +<html> <head> +<meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> +<title> Postfix manual - master(8) </title> +</head> <body> <pre> +MASTER(8) MASTER(8) + +<b>NAME</b> + master - Postfix master process + +<b>SYNOPSIS</b> + <b>master</b> [<b>-Dditvw</b>] [<b>-c</b> <i>config</i><b>_</b><i>dir</i>] [<b>-e</b> <i>exit</i><b>_</b><i>time</i>] + +<b>DESCRIPTION</b> + The <a href="master.8.html"><b>master</b>(8)</a> daemon is the resident process that runs Postfix daemons + on demand: daemons to send or receive messages via the network, daemons + to deliver mail locally, etc. These daemons are created on demand up + to a configurable maximum number per service. + + Postfix daemons terminate voluntarily, either after being idle for a + configurable amount of time, or after having serviced a configurable + number of requests. Exceptions to this rule are the resident queue man- + ager, address verification server, and the TLS session cache and + pseudo-random number server. + + The behavior of the <a href="master.8.html"><b>master</b>(8)</a> daemon is controlled by the <a href="master.5.html"><b>master.cf</b></a> + configuration file, as described in <a href="master.5.html"><b>master</b>(5)</a>. + + Options: + + <b>-c</b> <i>config</i><b>_</b><i>dir</i> + Read the <a href="postconf.5.html"><b>main.cf</b></a> and <a href="master.5.html"><b>master.cf</b></a> configuration files in the named + directory instead of the default configuration directory. This + also overrides the configuration files for other Postfix daemon + processes. + + <b>-D</b> After initialization, run a debugger on the master process. The + debugging command is specified with the <b><a href="postconf.5.html#debugger_command">debugger_command</a></b> in the + <a href="postconf.5.html"><b>main.cf</b></a> global configuration file. + + <b>-d</b> Do not redirect stdin, stdout or stderr to /dev/null, and do not + discard the controlling terminal. This must be used for debug- + ging only. + + <b>-e</b> <i>exit</i><b>_</b><i>time</i> + Terminate the master process after <i>exit</i><b>_</b><i>time</i> seconds. Child pro- + cesses terminate at their convenience. + + <b>-i</b> Enable <b>init</b> mode: do not become a session or process group + leader; and similar to <b>-s</b>, do not redirect stdout to /dev/null, + so that "<a href="postconf.5.html#maillog_file">maillog_file</a> = /dev/stdout" works. This mode is + allowed only if the process ID equals 1. + + This feature is available in Postfix 3.3 and later. + + <b>-s</b> Do not redirect stdout to /dev/null, so that "<a href="postconf.5.html#maillog_file">maillog_file</a> = + /dev/stdout" works. + + This feature is available in Postfix 3.4 and later. + + <b>-t</b> Test mode. Return a zero exit status when the <b>master.pid</b> lock + file does not exist or when that file is not locked. This is + evidence that the <a href="master.8.html"><b>master</b>(8)</a> daemon is not running. + + <b>-v</b> Enable verbose logging for debugging purposes. This option is + passed on to child processes. Multiple <b>-v</b> options make the soft- + ware increasingly verbose. + + <b>-w</b> Wait in a dummy foreground process, while the real master daemon + initializes in a background process. The dummy foreground + process returns a zero exit status only if the master daemon + initialization is successful, and if it completes in a reason- + able amount of time. + + This feature is available in Postfix 2.10 and later. + + Signals: + + <b>SIGHUP</b> Upon receipt of a <b>HUP</b> signal (e.g., after "<b>postfix reload</b>"), the + master process re-reads its configuration files. If a service + has been removed from the <a href="master.5.html"><b>master.cf</b></a> file, its running processes + are terminated immediately. Otherwise, running processes are + allowed to terminate as soon as is convenient, so that changes + in configuration settings affect only new service requests. + + <b>SIGTERM</b> + Upon receipt of a <b>TERM</b> signal (e.g., after "<b>postfix abort</b>"), the + master process passes the signal on to its child processes and + terminates. This is useful for an emergency shutdown. Normally + one would terminate only the master ("<b>postfix stop</b>") and allow + running processes to finish what they are doing. + +<b>DIAGNOSTICS</b> + Problems are reported to <b>syslogd</b>(8) or <a href="postlogd.8.html"><b>postlogd</b>(8)</a>. The exit status is + non-zero in case of problems, including problems while initializing as + a master daemon process in the background. + +<b>ENVIRONMENT</b> + <b>MAIL_DEBUG</b> + After initialization, start a debugger as specified with the + <b><a href="postconf.5.html#debugger_command">debugger_command</a></b> configuration parameter in the <a href="postconf.5.html"><b>main.cf</b></a> configu- + ration file. + + <b>MAIL_CONFIG</b> + Directory with Postfix configuration files. + +<b>CONFIGURATION PARAMETERS</b> + Unlike most Postfix daemon processes, the <a href="master.8.html"><b>master</b>(8)</a> server does not + automatically pick up changes to <a href="postconf.5.html"><b>main.cf</b></a>. Changes to <a href="master.5.html"><b>master.cf</b></a> are + never picked up automatically. Use the "<b>postfix reload</b>" command after + a configuration change. + +<b>RESOURCE AND RATE CONTROLS</b> + <b><a href="postconf.5.html#default_process_limit">default_process_limit</a> (100)</b> + The default maximal number of Postfix child processes that pro- + vide a given service. + + <b><a href="postconf.5.html#max_idle">max_idle</a> (100s)</b> + The maximum amount of time that an idle Postfix daemon process + waits for an incoming connection before terminating voluntarily. + + <b><a href="postconf.5.html#max_use">max_use</a> (100)</b> + The maximal number of incoming connections that a Postfix daemon + process will service before terminating voluntarily. + + <b><a href="postconf.5.html#service_throttle_time">service_throttle_time</a> (60s)</b> + How long the Postfix <a href="master.8.html"><b>master</b>(8)</a> waits before forking a server + that appears to be malfunctioning. + + Available in Postfix version 2.6 and later: + + <b><a href="postconf.5.html#master_service_disable">master_service_disable</a> (empty)</b> + Selectively disable <a href="master.8.html"><b>master</b>(8)</a> listener ports by service type or + by service name and type. + +<b>MISCELLANEOUS CONTROLS</b> + <b><a href="postconf.5.html#config_directory">config_directory</a> (see 'postconf -d' output)</b> + The default location of the Postfix <a href="postconf.5.html">main.cf</a> and <a href="master.5.html">master.cf</a> con- + figuration files. + + <b><a href="postconf.5.html#daemon_directory">daemon_directory</a> (see 'postconf -d' output)</b> + The directory with Postfix support programs and daemon programs. + + <b><a href="postconf.5.html#debugger_command">debugger_command</a> (empty)</b> + The external command to execute when a Postfix daemon program is + invoked with the -D option. + + <b><a href="postconf.5.html#inet_interfaces">inet_interfaces</a> (all)</b> + The network interface addresses that this mail system receives + mail on. + + <b><a href="postconf.5.html#inet_protocols">inet_protocols</a> (all)</b> + The Internet protocols Postfix will attempt to use when making + or accepting connections. + + <b><a href="postconf.5.html#import_environment">import_environment</a> (see 'postconf -d' output)</b> + The list of environment parameters that a privileged Postfix + process will import from a non-Postfix parent process, or + name=value environment overrides. + + <b><a href="postconf.5.html#mail_owner">mail_owner</a> (postfix)</b> + The UNIX system account that owns the Postfix queue and most + Postfix daemon processes. + + <b><a href="postconf.5.html#process_id">process_id</a> (read-only)</b> + The process ID of a Postfix command or daemon process. + + <b><a href="postconf.5.html#process_name">process_name</a> (read-only)</b> + The process name of a Postfix command or daemon process. + + <b><a href="postconf.5.html#queue_directory">queue_directory</a> (see 'postconf -d' output)</b> + The location of the Postfix top-level queue directory. + + <b><a href="postconf.5.html#syslog_facility">syslog_facility</a> (mail)</b> + The syslog facility of Postfix logging. + + <b><a href="postconf.5.html#syslog_name">syslog_name</a> (see 'postconf -d' output)</b> + A prefix that is prepended to the process name in syslog + records, so that, for example, "smtpd" becomes "prefix/smtpd". + + Available in Postfix 3.3 and later: + + <b><a href="postconf.5.html#service_name">service_name</a> (read-only)</b> + The <a href="master.5.html">master.cf</a> service name of a Postfix daemon process. + +<b>FILES</b> + To expand the directory names below into their actual values, use the + command "<b>postconf <a href="postconf.5.html#config_directory">config_directory</a></b>" etc. + + $<a href="postconf.5.html#config_directory">config_directory</a>/<a href="postconf.5.html">main.cf</a>, global configuration file. + $<a href="postconf.5.html#config_directory">config_directory</a>/<a href="master.5.html">master.cf</a>, master server configuration file. + $<a href="postconf.5.html#queue_directory">queue_directory</a>/pid/master.pid, master lock file. + $<a href="postconf.5.html#data_directory">data_directory</a>/master.lock, master lock file. + +<b>SEE ALSO</b> + <a href="qmgr.8.html">qmgr(8)</a>, queue manager + <a href="verify.8.html">verify(8)</a>, address verification + <a href="master.5.html">master(5)</a>, <a href="master.5.html">master.cf</a> configuration file syntax + <a href="postconf.5.html">postconf(5)</a>, <a href="postconf.5.html">main.cf</a> configuration file syntax + <a href="postlogd.8.html">postlogd(8)</a>, Postfix logging + syslogd(8), system logging + +<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 + + Wietse Venema + Google, Inc. + 111 8th Avenue + New York, NY 10011, USA + + MASTER(8) +</pre> </body> </html> |