> ## Documentation Index
> Fetch the complete documentation index at: https://docs.usenubis.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Key pairs

> Use SSH key pairs to keep Nubis Compute instance access controlled and repeatable.

## Prefer managed key-based access over shared passwords

SSH key pairs are the cleanest way to control access to Linux instances on Nubis Compute. They make launches repeatable and reduce the temptation to share broad credentials.

## Recommended key-pair practice

* Keep separate keys for people and automation
* Rotate keys when ownership changes
* Remove stale keys from instance launch templates
* Avoid reusing one key pair everywhere

## Before launch

1. Decide who needs shell access.
2. Attach only the relevant public keys.
3. Keep emergency access procedures documented.
4. Pair key review with [Roles and permissions](/get-started/roles-and-permissions).