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PRAYER(8) System Manager's Manual PRAYER(8)


prayerstandalone IMAP-based webmail server


prayer [--config-file file] [[--config-option name=value] ...] [--foreground | --disable-prefork] [--disable-session | -- session-options ...]


prayer is the normal frontend daemon in the Prayer Webmail system. It is a simple HTTP server and proxy that serves icons and other static files, but firstly and foremostly forwards requests to the correct backend daemons based on session IDs passed either in cookies or as part of the URL.
The master daemon normally preforks a number of child processes that each will serve a configurable number of requests. The total number of child processes is limited to prevent denial of service attacks.
prayer accepts the following command-line options:
--config-file file
Reads configuration from file instead of the default.
--config-option name=value
Sets (overrides) the configuration option name to value. Any number of options can be specified in this manner.
Debug mode. Run a single process in the foreground.
Disable preforking. The master daemon will listen for connections on the configured ports and spawn child processes one at a time.
Do not start the session server, prayer-session(8).
End of prayer options; remaining options will be passed to prayer-session(8).


Can be set to specify the configuration file to use.
Local hostname. Overrides the hostname setting in the configuration file as well as on the command line.


Default configuration file.
Location of the standard icons used by the interface.
Directory containing other static files; currently only CSS files.
Pre-configured location of sockets for frontend to backend communication.




This manual page was put together by Magnus Holmgren <> using documentation written by David Carter <>.
17 August 2008 The Prayer Webmail Interface