Host and domain names in SolarWinds NTA

When flows are received from an IP address, NTA asks a DNS server to resolve the appropriate hostname or domain. This affects the way NTA filters your data, groups items in endpoint-related widgets, and displays host and domain names in the SolarWinds Platform Web Console.

For more details, see DNS and NetBIOS resolution in NTA.

Filtering

Filtering in NTA is based on hostnames. This way, filtering by hostnames returns the same results as filtering via IP addresses.

Endpoint-related widgets

NTA groups items in endpoint-related widgets by the hostname.

Host and domain names in NTA widgets

NTA does not apply changes of hostname or domain name to your historical data.

If a hostname or domain name changes, you can see flows from the same machine as two items: first under the old name and after the change, under the new name. For example, Top XX widgets show data split into more items, based on the appropriate resolved name.