DNSSEC-KEYMGR(8)



DNSSEC-KEYMGR(8)                    BIND 9                    DNSSEC-KEYMGR(8)

NAME
       dnssec-keymgr  - ensure correct DNSKEY coverage based on a defined pol-
       icy

SYNOPSIS
       :program:dnssec-keymgr [-Kdirectory] [-cfile] [-f] [-k] [-q] [-v]  [-z]
       [-gpath] [-spath] [zone...]

DESCRIPTION
       dnssec-keymgr  is  a  high  level  Python wrapper to facilitate the key
       rollover process for zones handled by BIND. It uses the  BIND  commands
       for manipulating DNSSEC key metadata: dnssec-keygen and dnssec-settime.

       DNSSEC   policy   can  be  read  from  a  configuration  file  (default
       /etc/dnssec-policy.conf), from which the  key  parameters,  publication
       and rollover schedule, and desired coverage duration for any given zone
       can be determined. This file may be used to  define  individual  DNSSEC
       policies on a per-zone basis, or to set a "default" policy used for all
       zones.

       When dnssec-keymgr runs, it examines the DNSSEC keys for  one  or  more
       zones,  comparing  their timing metadata against the policies for those
       zones. If key settings do not conform to the DNSSEC policy  (for  exam-
       ple,  because the policy has been changed), they are automatically cor-
       rected.

       A zone policy can specify a duration for which we want  to  ensure  the
       key  correctness  (coverage).  It  can  also  specify a rollover period
       (roll-period). If policy indicates that a key should roll  over  before
       the  coverage  period  ends, then a successor key will automatically be
       created and added to the end of the key series.

       If zones are specified on the command line, dnssec-keymgr will  examine
       only  those  zones.  If  a specified zone does not already have keys in
       place, then keys will be generated for it according to policy.

       If zones are not specified on the command line, then dnssec-keymgr will
       search  the  key directory (either the current working directory or the
       directory set by the -K option), and check the keys for all  the  zones
       represented in the directory.

       Key  times  that  are  in the past will not be updated unless the -f is
       used (see below). Key inactivation and deletion  times  that  are  less
       than five minutes in the future will be delayed by five minutes.

       It  is expected that this tool will be run automatically and unattended
       (for example, by cron).

OPTIONS
       -c file
          If -c is specified, then the DNSSEC policy is read from  file.   (If
          not specified, then the policy is read from /etc/dnssec-policy.conf;
          if that file doesnt exist,  a  built-in  global  default  policy  is
          used.)

       -f
          Force:  allow updating of key events even if they are already in the
          past. This is not recommended for use with zones in which keys  have
          already been published. However, if a set of keys has been generated
          all of which have publication and activation dates in the past,  but
          the  keys have not been published in a zone as yet, then this option
          can be used to clean them up and turn them into a proper  series  of
          keys with appropriate rollover intervals.

       -g keygen-path
          Specifies  a  path  to a dnssec-keygen binary. Used for testing. See
          also the -s option.

       -h
          Print the dnssec-keymgr help summary and exit.

       -K directory
          Sets the directory in which keys can be found. Defaults to the  cur-
          rent working directory.

       -k
          Only apply policies to KSK keys. See also the -z option.

       -q
          Quiet: suppress printing of dnssec-keygen and dnssec-settime.

       -s settime-path
          Specifies  a path to a dnssec-settime binary. Used for testing.  See
          also the -g option.

       -v
          Print the dnssec-keymgr version and exit.

       -z
          Only apply policies to ZSK keys. See also the -k option.

POLICY CONFIGURATION
       The dnssec-policy.conf file can specify three kinds of policies:
          . Policy classes (policyname{ ... };) can be inherited by zone poli-
          cies  or  other  policy classes; these can be used to create sets of
          different security profiles. For  example,  a  policy  class  normal
          might  specify  1024-bit  key sizes, but a class extra might specify
          2048 bits instead; extra would be used for zones that had  unusually
          high security needs.
          . Algorithm policies: (algorithm-policyalgorithm{ ...  }; ) override
          default per-algorithm settings. For example, by  default,  RSASHA256
          keys use 2048-bit key sizes for both KSK and ZSK.  This can be modi-
          fied using algorithm-policy, and the new key  sizes  would  then  be
          used for any key of type RSASHA256.

          . Zone policies: (zonename{ ... }; ) set policy for a single zone by
          name. A zone policy can inherit a policy class by including a policy
          option. Zone names beginning with digits (i.e., 0-9) must be quoted.
          If a zone does not have its own policy then the "default" policy ap-
          plies.

       Options that can be specified in policies:

       algorithm name;
          The  key  algorithm.  If  no  policy  is  defined,  the  default  is
          RSASHA256.

       coverage duration;
          The length of time to ensure that keys will be  correct;  no  action
          will  be  taken  to create new keys to be activated after this time.
          This can be represented as a number of seconds, or as a duration us-
          ing  human-readable  units (examples: "1y" or "6 months"). A default
          value for this option can be set in algorithm policies as well as in
          policy classes or zone policies. If no policy is configured, the de-
          fault is six months.

       directory path;
          Specifies the directory in which keys should be stored.

       key-size keytype size;
          Specifies the number of bits to use in creating keys. The keytype is
          either "zsk" or "ksk". A default value for this option can be set in
          algorithm policies as well as in policy classes or zone policies. If
          no policy is configured, the default is 2048 bits for RSA keys.

       keyttl duration;
          The key TTL. If no policy is defined, the default is one hour.

       post-publish keytype duration;
          How  long  after inactivation a key should be deleted from the zone.
          Note: If roll-period is not set, this value is ignored. The  keytype
          is  either "zsk" or "ksk". A default duration for this option can be
          set in algorithm policies as well as in policy classes or zone poli-
          cies. The default is one month.

       pre-publish keytype duration;
          How  long  before  activation  a  key  should be published. Note: If
          roll-period is not set, this value is ignored. The keytype is either
          "zsk" or "ksk". A default duration for this option can be set in al-
          gorithm policies as well as in policy classes or zone policies.  The
          default is one month.

       roll-period keytype duration;
          How  frequently  keys  should  be rolled over. The keytype is either
          "zsk" or "ksk". A default duration for this option can be set in al-
          gorithm  policies  as well as in policy classes or zone policies. If
          no policy is configured, the default is one year for ZSKs.  KSKs  do
          not roll over by default.

       standby keytype number;
          Not yet implemented.

REMAINING WORK
          .  Enable  scheduling of KSK rollovers using the -P sync and -D sync
          options to dnssec-keygen and dnssec-settime. Check the  parent  zone
          (as  in  dnssec-checkds)  to  determine when its safe for the key to
          roll.
          . Allow configuration of standby keys and use of the REVOKE bit, for
          keys that use RFC 5011 semantics.

SEE ALSO
       dnssec-coverage(8),         dnssec-keygen(8),        dnssec-settime(8),
       dnssec-checkds(8)

AUTHOR
       Internet Systems Consortium

COPYRIGHT
       2020, Internet Systems Consortium

9.16.8-Debian                     2020-10-13                  DNSSEC-KEYMGR(8)

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