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PROGRAM:
NAME
dtrealms - Displays defaults defined for DNSSEC-Tools
SYNOPSIS
dtrealms [options] <realm-file>
DESCRIPTION
dtrealms manages multiple distinct DNSSEC-Tools rollover environments running
simultaneously. Each rollover environment, called a realm, is defined in a realms file.
dtrealms uses this file to determine how the rollover environment must be initialized such
that it can run independently of the other rollover environments on a particular system.
This is useful for such things as managing very large collections of zones, segregating
customer zones, and software tests.
The realms file may be created with realminit. Currently, the distinct environment for
each realm must be created manually. It is hoped that a tool will soon be available to
assist with creating each realm's environment.
dtrealms isn't necessary for running multiple realms. However, it does make it easier to
manage multiple realms running consecutively.
REALM SETUP
A realm is primarily defined by its entry in a realms file. Four fields in particular
describe where the realm's files are located and how it runs. These are the realm's
configuration directory, state directory, realm directory, and rollrec file. These
directories are used to set the DT_STATEDIR and DT_SYSCONFDIR environment variables, and
the rollrec file defines which zones are managed by the realm's rollover manager.
https://www.dnssec-tools.org/wiki/index.php/Rollover_Realms:_Multiple,_Simultaneous,_Independent_Rollover_Environments
has more information on creating realms.
configdir
The configdir field of the realms file contains the name of the realm's configuration
directory. This file gives command paths and configuration values for running the
DNSSEC-Tools. The DNSSEC-Tools modules expects this directory hierarchy to contain a
dnssec-tools subdirectory, and a dnssec-tools.conf file within that subdirectory. The
path fields in the configuration file point to various things, such as commands and
key archives. It is recommended that these paths only point within the configdir
hierarchy, other than for system utilities.
The DT_SYSCONFDIR environment variable is set to the configdir field. This will tell
the DNSSEC-Tools programs and modules where to find their required data.
statedir
The statedir field of the realms file contains the name of the realm's state
directory. This directory contains such files as the rollrec lock file and the
rollerd communications socket. If a realm definition does not contain a statedir
field, then that realm will use the configdir field as its statedir field.
The DT_STATEDIR environment variable is set to the statedir field. This will tell the
DNSSEC-Tools programs and modules where to find these files.
realmdir
The realmdir field of the realms file contains the name of the directory in which the
realm executes. This is where the realm's zone, key, and other files are located.
rollrec
The rollrec field of the realms file is the name of the file that controls zone
rollover. This file points to the various keyrec files that define the locations of
the zone files and their associated key files. A realm's rollrec file can locate
these files anywhere on the system, but it is strongly recommended that they all
remain within the realm's realmdir hierarchy.
While the DNSSEC-Tools programs will work fine if a realm's configuration, state, and
realm directories are actually one directory, it is recommended that at the least the
realmdir files be separated from the configdir and statedir files.
It is further recommended that the files for the various realms be segregated from each
other.
OPTIONS
The following options are handled by dtrealms.
-directory
Directory in which dtrealms will be executed. Any relative paths given in realms
configuration files will use this directory as their base.
-display
Start the grandvizier display program to give a graphical indication of realm status.
-foreground
Run dtrealms in the foreground instead of as a daemon.
-logfile
Logging file to use.
-loglevel
Logging level to use when writing to the log file. See rolllog(3) for more details.
-logtz
Time zone to use with the log file. This must be either "gmt" or "local".
-Version
Displays the version information for dtrealms and the DNSSEC-Tools package.
-help
Displays a help message and exits.
WARNING
This is an early prototype. Consider it to be beta quality.
COPYRIGHT
Copyright 2011-2014 SPARTA, Inc. All rights reserved. See the COPYING file included with
the DNSSEC-Tools package for details.
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