Update DNS Server Configuration
Use this procedure to update the DNS server configuration across
VMware Cloud Foundation
components. - Verify that both forward and reverse DNS resolution are functional for eachVMware Cloud Foundationcomponent using the updated DNS server information.
- Verify that the new DNS server is reachable from each of theVMware Cloud Foundationcomponents.
- Verify allVMware Cloud Foundationcomponents are reachable fromSDDC Manager.
- Verify that allVMware Cloud Foundationcomponents are in anActivestate.
SDDC
Manager
uses DNS servers to provide name
resolution for the components in the system. When you update the DNS server
configuration, SDDC
Manager
performs
DNS configuration updates for the following components: - SDDC Manager
- vCenter Servers
- ESXi hosts
- NSX Managers
- NSX Edge nodes
- vRealize Suite Lifecycle Manager
- vRealize Log Insight
- vRealize Operations
- vRealize Automation
- VxRail Manager
If the update fails, SDDC Manager rolls back the DNS settings for the failed component. Fix the
underlying issue and retry the update starting with the failed component.
There is no rollback for vRealize
Suite Lifecycle Manager. Check the logs, resolve any issues, and retry the
update.
Updating the DNS server configuration can take some time to complete, depending on the size of
your environment. Schedule DNS updates at a time that minimizes the impact to the
system users.
This procedure uses the
SDDC Manager
UI
.- In theSDDC Manager UI, click .
- On theNetwork Settingspage, click theDNS Configurationtab.
- To update the DNS servers, clickEdit.
- Update the DNS configuration.
- Expand theOverviewsection, and clickNext.
- Expand thePrerequisitessection, and clickNext.
- Expand theEdit DNS configurationsection, update thePrimary DNS serverandAlternative DNS server, and clickSave.Alternative DNS server is optional.