# On-premises Databases

Extract metadata from on-premises databases using Atlan's metadata-extractor tool. Securely upload metadata to S3 for ingestion into Atlan—no direct connection required.

## Setup options

- [Set up on-premises database access](https://docs.atlan.com/llms/connectors/on-premises-databases/set-up-on-premises-database-access/llms.txt): In such cases you may want to decouple the extraction of metadata from its ingestion in Atlan. This approach gives you full control over your resources and metadata transfer to Atlan.
- [Connect on-premises databases to Kubernetes](https://docs.atlan.com/llms/connectors/on-premises-databases/connect-on-premises-databases-to-kubernetes/llms.txt): You can configure and use Atlan's metadata-extractor tool to extract metadata from on-premises databases with Kubernetes deployment architecture, as an alternative to using Docker Compose.

## Crawl and mine

- [Crawl on-premises databases](https://docs.atlan.com/llms/connectors/on-premises-databases/crawl-on-premises-databases/llms.txt): Extract metadata from on-premises databases to catalog tables, schemas, and views. Discover and govern your database assets after configuring the metadata-extractor tool.

## Reference

- [Supported connections for on-premises databases](https://docs.atlan.com/llms/connectors/on-premises-databases/supported-connections-for-on-premises-databases/llms.txt): The metadata-extractor tool supports the following connection types.

## Troubleshooting

- [Troubleshooting on-premises database connectivity](https://docs.atlan.com/llms/connectors/on-premises-databases/troubleshooting-on-premises-database-connectivity/llms.txt): Learn about troubleshooting on-premises database connectivity.