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Manual Chapter : Managing DNS Profiles

Applies To:

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BIG-IQ Centralized Management

  • 8.3.0, 8.2.0, 8.1.0, 8.0.0, 7.1.0
Manual Chapter

Managing DNS Profiles

How do I manage permissions for DNS GSLB objects?

F5 BIG-IQ Centralized Management makes it straightforward for you to manage permissions that allow users to view only the specific DNS GSLB objects you assign to them.
To provide permissions for a specific set of objects, you complete these tasks.
  1. Add a custom resource group
     - In this task, you specify the GSLB objects that you want this user to work with. You create a resource group for each collection of objects that you want to assign to a user.
  2. Add a custom role
     - Next, you associate the GSLB Viewer role type with the resource groups that contain the objects you want your delegates to view. For example, if you had a resource group made up of two wide IPs, one named
    SeattlePrime
     and the other named
    SeattleSecond
    , you might name this role
    viewSeattle
    .
  3. Add a custom user
     - Finally, you create a user and assign a custom role to that user. The role gives that user permissions to view the objects that belong to the objects in the resource group. In the current example, you could assign your custom user to the
    viewSeattle
     role to give that user the ability to view the GSLB objects in the two Seattle wide IPs.
For step-by-step guidance on each of these tasks, refer to
How do I give users customized permissions to specific BIG-IP resources based on their job responsibilities?
 on
support.f5.com
.

How do I manage a DNS profile in BIG-IQ?

A DNS profile allows you to configure various DNS attributes that a virtual server or DNS listener object applies to DNS traffic. For example, when you enable the DNS Express feature in the DNS profile, the BIG-IP system acts as an authoritative secondary DNS server, and performs actions such as zone transfers from multiple primary DNS servers or zone transfers from the local BIND server on the BIG-IP system.
The workflows for creating a new DNS profile or changing the settings for a DNS profile that already reside on devices in a managed sync group are very similar. In each case, there are four tasks to perform.
This figure illustrates the workflow you perform to manage the DNS profiles in a sync group. Changing the settings or creating the DNS profile is the second step in this process.
Change DNS profile workflow
Workflow for changing object settings on a managed device
You can view the DNS listeners configured for the DNS sync groups you manage by navigating to
Configuration
DNS
Delivery
Profiles
. From there, click a listener to edit it, click create to setup a new one.

View GSLB objects

Before you can use a BIG-IQ to manage DNS GSLB objects on a managed device, you must configure at least one Datacenter on that device using the BIG-IP user interface.
Before you can view GSLB objects, you must discover and import BIG-IP devices that are members of a DNS sync group that has GSLB objects.
When you use F5 BIG-IQ Centralized Management to manage your DNS sync group, you can view the GSLB objects that are defined on devices in the sync group.
  1. At the top of the screen, click
    Configuration
    .
  2. On the left, click
    DNS
    GSLB
    , and then select the object type that you want to view.
    The screen displays a list of the selected object type that are defined on devices managed by this BIG-IQ system. For each object (except iRules, topology records, or topology regions), icons describe the health status and availability.
  3. To view overview information about a particular object, select the check box for that object.
    An overview panel and a related items panel display for this object.
  4. To see a list of related items for a GSLB object:
    1. Select the check box for that object.
    2. In the Related Items panel, click
      Show
      .
      You can view the list of related items; and, for many of the items, you can click a link to view properties for that item.
  5. To view the general properties for a GSLB object, click the name of that object.
    The screen displays the properties for the selected object.

Create a DNS profile

You create a profile to configure various DNS attributes that a virtual server or DNS listener object can apply to DNS traffic.
  1. At the top of the screen, click
    Configuration
    , then, on the left, click
    DNS
    Delivery
    Profiles
    .
    The screen displays the list of profiles defined on this device.
  2. Click
    Create
    .
    The New Profile screen opens.
  3. Type a
    Name
     for the DNS profile.
  4. Select a
    Parent Profile
    from which this profile inherits settings.
  5. Select the options you want to override from the parent DNS profile.
    The options perform the same function as they do on a BIG-IP device.
  6. Click
    Save & Close
    .
    The system creates the new profile you specified and adds it to the list of profiles.
Changes that you make are made only to the pending version. The
pending version
 serves as a repository for changes you stage before deploying them to the managed device. Object settings for the pending version are not the same as the object settings on the actual BIG-IP device until they are deployed or discarded.
Your next action depends on how you plan to use this listener.
  • If you plan to use this DNS profile for a DNS listener, you must pin this profile to the device on which you plan to deploy the listener.
  • When you finish specifying the settings for this profile and pinning it to the target device, you need to evaluate and then deploy the changes to devices in the sync group. Until you deploy the changes stored in the pending version, objects on the devices in the sync group are not changed.

Edit a DNS profile

You can view and modify the properties for existing DNS profiles to serve your business needs. Since you are working with an existing profile, you can modify only some settings.
  1. At the top of the screen, click
    Configuration
    , then, on the left, click
    DNS
    Delivery
    Profiles
    .
    The screen displays the list of profiles defined on this device.
  2. Click the name of the profile you want to edit.
    The screen displays the current settings for the selected profile.
  3. Make the changes to the settings you want to revise, and then, when your edits are complete, click
    Save & Close
    .
    When you edit a default profile, you cannot override the parent profile settings, because default profiles do not have a parent.
    The system updates the profile with the settings you specified.
Changes that you make are made only to the pending version. The
pending version
 serves as a repository for changes you stage before deploying them to the managed device. Object settings for the pending version are not the same as the object settings on the actual BIG-IP device until they are deployed or discarded.
When you finish revising the settings for this DNS profile, you need to evaluate and then deploy the changes to devices in the sync group. Until you deploy the changes stored in the pending version, objects on the devices in the sync group are not changed.
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