.. meta::
   :description: Find Orphaned PTR Records, Concurrent Leases, Show Round Robin Records, Show Multiply Defined PTR Records as part of network maintenance in Micetro.
   :keywords: network space, Micetro, network maintenance, PTR records 

.. _admin-maintenance:

Maintenance  (Management Console, obsolete)
============================================

Micetro contains several options for cleaning up the network space. To access the network maintenance functions, select :menuselection:`Tools --> Maintenance` and then the maintenance operation you want to perform.

Find Orphaned PTR Records
-------------------------

The *Find Orphaned PTR Records* maintenance operation allows you to see and remove orphaned PTR records in reverse zones. PTR records that have no corresponding address (A) records in the system are considered orphaned.

To find and remove orphaned PTR records, do the following:

1. Select :menuselection:`Tools --> Maintenance --> Find Orphaned PTR Records`. A dialog box displays.

2. Click :guilabel:`Start` to start looking for orphaned PTR records.

  .. note::
    Due to the fact that the result could be a large number of records, there is now a limit of 1000 records being shown.

.. image:: ../../images/admin-orphaned-ptr-records.png
  :width: 70%
  :align: center

3. Select the PTR records you want to remove, and click the :guilabel:`Delete` button. The selected PTR records are removed.

Find Concurrent Leases
----------------------

The *Find Concurrent Leases* maintenance operation allows you to see and release concurrent DHCP leases. Concurrent DHCP leases are multiple active leases that are assigned to the same MAC address.

To see and remove concurrent DHCP leases, do the following:

1. Select :menuselection:`Tools --> Maintenance --> Find Concurrent Leases`. A dialog box opens.

2. Click :guilabel:`Start` to start looking for concurrent DHCP leases.

  .. note::
    Finding all concurrent leases might take a while in large environments.

.. image:: ../../images/admin-concurrent-records.png
  :width: 70%
  :align: center

3. Select the leases you want to release, and click the :guilabel:`Release` button. The selected leases are released.

Show Round Robin Records
------------------------

The *Show Round Robin Records* maintenance operation allows you to see and delete round robin DNS records. Round robin records are multiple address (A / AAAA) records with the same name.

To see and remove round robin records, do the following:

1. Select :menuselection:`Tools --> Maintenance --> Show Round Robin Records`. A dialog box displays.

2. Click :guilabel:`Start` to start looking for round robin records.

  .. note::
    Finding all round robin records might take a while in large environments.

.. image:: ../../images/admin-round-robin-records.png
  :width: 70%
  :align: center

3. Select the records you want to delete and click the :guilabel:`Delete` button. The selected records are deleted.

Show Multiply Defined PTR Records
---------------------------------

The *Show Multiply Defined Records* maintenance operation allows you to see and delete multiply defined PTR records. Multiply defined PTR records are multiple PTR records with the same name.

To see and remove multiply defined PTR records, do the following:

1. Select :menuselection:`Tools --> Maintenance --> Show Multiply Defined PTR Records`. A dialog box displays.

2. Click :guilabel:`Start` to start looking for multiply defined PTR records.

  .. note::
    Finding all multiply defined PTR records might take a while in large environments.

.. image:: ../../images/admin-multiply-defined-ptr-records.png
  :width: 70%
  :align: center

3. Select the records you want to delete, and click the :guilabel:`Delete` button. The selected records are deleted.