> For the complete documentation index, see [llms.txt](https://guide-on.gitbook.io/telltail/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guide-on.gitbook.io/telltail/manage/update-auth-key.md).

# Update Auth Key

At the time of writing, Tailscale allows an auth key to live for at most 90 days. When a need comes to update the key for Telltail Center, you can generate a new auth key [like before](/telltail/installation/setup-telltail-center.md#get-an-auth-key-from-tailscale) and can update it with:

```bash
./telltail edit center-auth-key
```