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[Home ](./index.md ) > [bitburner ](./bitburner.md ) > [NS ](./bitburner.ns.md ) > [scan ](./bitburner.ns.scan.md )
## NS.scan() method
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Get the list servers connected to a server.
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< b > Signature:< / b >
```typescript
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scan(host: string, hostnames?: boolean): string[];
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```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
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| host | string | Hostname of the server to scan. |
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| hostnames | boolean | Optional boolean specifying whether the function should output hostnames (if true) or IP addresses (if false). |
< b > Returns:< / b >
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string\[\]
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Returns an string of hostnames or IP.
## Remarks
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RAM cost: 0.2 GB
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Returns an array containing the hostnames or IPs of all servers that are one node way from the specified target server. The hostnames/IPs in the returned array are strings.
