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uncloud/website/docs/3-concepts/6-services/1-internal-dns.md
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# Internal DNS
Services can be addressed on the internal WireGuard network by service name, service ID, or a machine-scoped service name:
## Service name
```
$ nslookup nats.internal
Server: 127.0.0.11
Address: 127.0.0.11#53
Name: nats.internal
Address: 10.210.0.2
Name: nats.internal
Address: 10.210.1.2
```
```
$ nslookup worker.internal
Server: 127.0.0.11
Address: 127.0.0.11#53
Name: worker.internal
Address: 10.210.0.3
Name: worker.internal
Address: 10.210.0.4
Name: worker.internal
Address: 10.210.1.3
Name: worker.internal
Address: 10.210.1.4
```
## Service ID
```
$ nslookup 3ecb3a8bbec5fd3f46efb056a934714a.internal
Server: 127.0.0.11
Address: 127.0.0.11#53
Name: 3ecb3a8bbec5fd3f46efb056a934714a.internal
Address: 10.210.0.4
```
## Machine ID scoped service name
```
$ nslookup 0903f0ee483aa97d559eeeaac5e22283.m.nats.internal
Server: 127.0.0.11
Address: 127.0.0.11#53
Name: nats.internal
Address: 10.210.1.2
```
```
$ nslookup 0903f0ee483aa97d559eeeaac5e22283.m.worker.internal
Server: 127.0.0.11
Address: 127.0.0.11#53
Name: worker.internal
Address: 10.210.1.3
Name: worker.internal
Address: 10.210.1.4
```