Managing DNS/DHCP Server Updates - Adaptive Applications - BlueCat Gateway - 21.1.1

BlueCat Server Update Services Administration Guide
Locale
English
Product name
BlueCat Gateway
Version
21.1.1

Once you have DNS/DHCP Servers within BlueCat Server Update Services, you can apply updates, security patches, and hotfixes on managed DNS/DHCP Servers immediately or schedule them to be applied on a specified date and time. When applying updates, you can select multiple updates to be applied in a single event; however, it is important to specify the correct order of updates to prevent errors during the update process.

You can manage the update files within the Server Updates tab. You can only upload zipped files (.zip) that are released for DNS/DHCP Servers. When applying updates, the system performs the following checks:
  • Validating the integrity of the update file with the respective MD5 checksum.
  • Checking the DNS/DHCP Servers to ensure that there is sufficient disk space to perform the update.
  • Verifying that there is no existing process in progress for updating the selected Server Batch.
  • Checking that the selected Server Batches to ensure that there is no scheduled update that may overlap with the current update.
  • Verifying if the DNS/DHCP Servers within the Server Batch are online and available for the update. If a DNS/DHCP Server within a Server Batch is unreachable or unavailable, BlueCat Server Update Services provides additional details before confirming the selected action.
  • Verifying that the order in which patches are to be applied is correctly set. If the order of patch application is incorrect and a patch has a dependency on another patch that is to be applied after the dependent patch, the dependent patch fails to apply.
  • Verifying that the patch has not yet been installed on the DNS/DHCP Server. If a patch has already been applied, the DNS/DHCP Servers skip the installation of those patches during the installation phase.

Uploading DNS/DHCP Server update files



  1. Click the Server Updates tab within the BlueCat Server Update Services workflow.
  2. Click the Available Updates tab.
  3. Click . The Upload screen appears.
  4. In the Upload screen, enter the following information:
    • Patch MD5—enter the MD5 checksum value of the update file. You can retrieve this value by running an MD5 check on the file locally or by retrieving the MD5 check from the announcement article in the BlueCat Care Portal.
    • Type—select the type of update that you are uploading. The type can be Patch, Upgrade, BIND Hotfix, or Cumulative Security Patch.
      Important: You must set the correct update type based on the artifact that you are applying. If you are applying an upgrade, such as DNS/DHCP Server v9.3.0, you must select the Upgrade update type to ensure the upgrade is successfully applied to the DNS/DHCP Servers. Selecting the incorrect update type results in validation issues and failure to apply the update.
    • Release Date—select the date that the update file was published. This helps you organize files and updates based on the update release date.
    • Click Browse to locate the update file that you are uploading.
  5. Click Upload to begin uploading the update file. During the upload process, the screen is grayed out and an activity icon appears on the screen.

    Attention: Do not close the window while the upload is in progress. A confirmation box appears when the update file has been successfully uploaded.

    Once the upload has completed, the update appears in the Available Updates tab.

  6. Click the Enable toggle switch to make the update available for application to DNS/DHCP Servers.

Applying a DNS/DHCP Server update



  1. Click the Available Updates tab.
  2. Select the checkbox next to one or more update files.
  3. Click and select Apply. The Apply screen appears.
  4. Under Select Batch, select one or more Server Batches to apply the updates to and click Next.
  5. Under Selected Patches, drag the name of the update to change the order in which updates are applied.
  6. Under Order Batches, drag the name of the Server Batch to change the order in which the updates are applied to the Server Batches.
  7. Click Apply.

BlueCat Server Update Services begins applying the updates to the selected Server Batches. You can monitor the update progress from the Scheduled Updates tab.

Schedule a DNS/DHCP Server update

You can schedule updates so that DNS/DHCP Server updates are applied at a specific date any time. Once you have configured a scheduled update, BlueCat Server Update Services immediately uploads the update files to the DNS/DHCP Servers in the selected Server Batches, and applies the updates at the scheduled date and time.

BlueCat Server Update Services periodically checks the DNS/DHCP Servers to ensure that the update files are still available on the DNS/DHCP Servers before the scheduled update. If BlueCat Server Update Services cannot find the files on the DNS/DHCP Servers, a message appears in the BlueCat Server Update Services UI indicating that the update files cannot be found on the DNS/DHCP Server. If the files cannot be found, you can re-stage the files by clicking and selecting Re-Stage. BlueCat Server Update Services then re-uploads the update files to the selected DNS/DHCP Servers to ensure that the files are available for the scheduled update.



  1. Click the Available Updates tab.
  2. Select the checkbox next to one or more update files.
  3. Click and select Schedule. The Schedule screen appears.
  4. Under Select Batch, select one or more Server Batches to apply the updates to and click Next.
  5. Under Selected Patches, drag the name of the update to change the order in which updates are applied.
  6. Under Order Batches, drag the name of the Server Batch to change the order in which the updates are applied to the Server Batches.
  7. Under Date Upgrade, select the date in which the update will be applied.
  8. Under Time Upgrade, select the time of day when the update will be applied.
  9. Click Schedule.

BlueCat Server Update Services creates the scheduled update. You can view a list of scheduled updates from the Scheduled Updates tab.

Deleting DNS/DHCP Server update files

Attention: Deleting a DNS/DHCP Server update file does not stop any updates that are currently in progress. Deleting the update file only prevents any future updates from being applied.
  1. Click the Available Updates tab.
  2. Select the checkbox next to one or more update files.
  3. Click and select Delete Selected.