DNS maps a human-readable name to a network address, so you reach a machine by plc-line-1 instead of remembering an IP. In industrial environments it is not widely used: it adds a moving part to the network, and OT teams have historically preferred static, hard-coded addresses they can reason about.
Used deliberately through Access Gate, DNS earns its place. It simplifies access and maintenance over time: when an asset's IP changes, you update one entry instead of hunting through configurations across the site, which gives you a clean path to migrate IPs.
DNS entries are managed straight from the Asset tab, where you also build your asset inventory. Names and assets live in one integrated system, which keeps the whole setup consistent and simple.
Create a DNS entry for an asset
Each asset in Access Gate can have its own DNS entry. You only specify the prefix.
- Go to Asset → [Asset] and select the pencil icon.
- Add a DNS entry by entering the prefix.
The DNS name now resolves to the asset's overlay IP, so traffic sent to that name is directed through the Access Gate proxy rather than straight to the device.
Where the suffix comes from
The suffix portion of the DNS entry is populated directly from your vnet configuration, under Settings → Subnets → Overlay DNS Name. Set it once per subnet and every asset entry inherits it.
