[Home](./index.md) > [bitburner](./bitburner.md) > [NS](./bitburner.ns.md) > [renamePurchasedServer](./bitburner.ns.renamepurchasedserver.md)
## NS.renamePurchasedServer() method
Rename a purchased server.
Signature:
```typescript
renamePurchasedServer(hostname: string, newName: string): boolean;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| hostname | string | Current server hostname. |
| newName | string | New server hostname. |
Returns:
boolean
True if the upgrade succeeded, and false otherwise.
## Remarks
RAM cost: 2.00 GB