doc: remove kasp db import/export topic

2 files changed, 11 insertions, 52 deletions

diff --git a/doc/migration.rst b/doc/migration.rst
index 1113c730b..63747bb35 100644
--- a/doc/migration.rst
+++ b/doc/migration.rst
@@ -104,7 +104,7 @@ Upgrading from Knot DNS version 2.7.x to 2.8.x is seamless.
 
 However, if the previous version was migrated (possibly indirectly)
 from version 2.5.x, the format of the keys stored in
-:ref:`Keys And Signature Policy Database <DNSSEC Export Import  KASP DB>`
+Keys And Signature Policy Database
 is no longer compatible and needs to be updated.
 
 The easiest ways to update how keys are stored in KASP DB is to modify
diff --git a/doc/operation.rst b/doc/operation.rst
index 3665c01d1..6ffc4cb08 100644
--- a/doc/operation.rst
+++ b/doc/operation.rst
@@ -862,57 +862,6 @@ Emergency key replacement:
 * Align the keys with the new states (backup key as active, compromised key as public)
 * Re-sign the zone
 
-.. _DNSSEC Export Import  KASP DB:
-
-Export/import  KASP DB
-======================
-
-If you would like make a backup of your KASP DB or transfer your cryptographic
-keys to a different server,
-you may utilize the ``mdb_dump`` and ``mdb_load`` tools provided by the
-`lmdb-utils <https://packages.ubuntu.com/bionic/lmdb-utils>`_
-package on Ubuntu and Debian or by the `lmdb <https://rpms.remirepo.net/rpmphp/zoom.php?rpm=lmdb>`_
-package on Fedora, CentOS and RHEL.
-These tools allow you to convert the contents of any LMDB database to a portable plain text format
-which can be imported to any other LMDB database. Note that the `keys` subdirectory of the
-:ref:`database_kasp-db` directory containing the \*.pem files has to be copied separately.
-
-.. NOTE::
-   Make sure to freeze DNSSEC events on a running server prior to applying the following
-   commands to its  KASP DB. Use the ``knotc zone-freeze`` and ``knotc zone-thaw`` commands
-   as described in :ref:`Editing zone file`.
-
-Use the ``mdb_dump -a`` command with the configured :ref:`database_kasp-db` directory
-as an argument to convert the contents of the LMDB database to a portable text format:
-
-.. code-block:: console
-
-   $ mdb_dump -a /path/to/keys
-
-Save the output of the command to a text file. You may then import the file
-into a different LMDB database using the ``mdb_load -f`` command, supplying the path
-to the file and the path to the database directory as arguments:
-
-.. code-block:: console
-
-    $ mdb_load -f /path/to/dump_file /path/to/keys
-
-.. NOTE::
-   Depending on your use case, it might be necessary to call ``knotc zone-sign``
-   (e.g. to immediately sign the zones with the new imported keys) or ``knotc zone-reload``
-   (e.g. to refresh DNSSEC signatures generated by the :ref:`geoip module<mod-geoip>`)
-   after importing new content into the KASP DB of a running server.
-
-.. TIP::
-   In order to seamlessly deploy a restored backup of KASP DB with respect to
-   a possibly ongoing DNSSEC key rollover, it's recommended to set
-   :ref:`propagation-delay <policy_propagation-delay>` to the sum of:
-
-   - The maximum delay between beginning of the zone signing and publishing
-     re-signed zone on all public slave servers.
-   - How long it takes to the backup server to start up with the restored data.
-   - The period between taking backup snapshots of the live environment.
-
 .. _DNSSEC Import of keys to HSM:
 
 Import of keys to HSM
@@ -1057,6 +1006,16 @@ The restore procedure does not care for keys deleted after taking the snapshot.
 Thus, after restore, there might remain some redundant ``.pem`` files
 of obsolete signing keys.
 
+.. TIP::
+   In order to seamlessly deploy a restored backup of KASP DB with respect to
+   a possibly ongoing DNSSEC key rollover, it's recommended to set
+   :ref:`propagation-delay <policy_propagation-delay>` to the sum of:
+
+   - The maximum delay between beginning of the zone signing and publishing
+     re-signed zone on all public slave servers.
+   - How long it takes to the backup server to start up with the restored data.
+   - The period between taking backup snapshots of the live environment.
+
 .. _Statistics:
 
 Statistics