conmand - ConMan daemon
is the daemon responsible for managing consoles defined by its
configuration file as well as listening for connections from clients.
- -c file
- Specify a configuration file, overriding the default
- Run the daemon in the foreground.
- Display a summary of the command-line options.
- Send a SIGTERM to the conmand process associated
with the specified configuration, thereby killing the daemon. Returns 0 if
the daemon was successfully signaled; otherwise, returns 1.
- Display license information.
- -p port
- Specify the port on which conmand will listen for
clients, overriding both the default port  and the port specified in
the configuration file.
- Displays the PID of the conmand process associated
with the specified configuration if it appears active. Returns 0 if the
configuration appears active; otherwise, returns 1.
- Send a SIGHUP to the conmand process associated with
the specified configuration, thereby re-opening both that daemon's log
file and individual console log files. Returns 0 if the daemon was
successfully signaled; otherwise, returns 1.
- Enable verbose mode.
- Display version information.
- Truncate both the daemon's log file and individual console
log files at start-up.
- Close and re-open both the daemon's log file and the
individual console log files. Conversion specifiers within filenames will
be re-evaluated. This is useful for logrotate configurations.
- Terminate the daemon.
Connections to the server are not authenticated, and communications between
client and server are not encrypted. When time allows, this will be addressed
in a future release. Until then, the recommendation is to bind the server's
listen socket to the loopback address (by specifying " server
" in conman.conf) and restrict access to the server
Log messages are sent to standard-error until after the configuration file has
been read, at which time future messages are discarded unless either the
keyword has been specified (cf.,
If the configuration file is modified while the daemon is running and a
was not originally specified, the ' -k
' and '-r
options may be unable to identify the daemon process; consequently, the
appropriate signal may need to be sent to the daemon manually.
The number of consoles that can be simultaneously managed is limited by the
maximum number of file descriptors a process can have open. The daemon sets
its "nofile" soft limit to the maximum/hard limit. If you are
encountering "too many open files" errors, you may need to increase
the "nofile" hard limit.
Chris Dunlap <email@example.com>
Copyright (C) 2007-2011 Lawrence Livermore National Security, LLC.
Copyright (C) 2001-2007 The Regents of the University of California.
ConMan is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later