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

# Admin Guide

> All you need to know about setting up, running, and using Horizon.

> [card] [Overview](https://developers.stellar.org/docs/data/apis/horizon/admin-guide/overview.md)
>
> Horizon is a central component of the Stellar platform: it provides an HTTP API to data in the Stellar network.

> [card] [Prerequisites](https://developers.stellar.org/docs/data/apis/horizon/admin-guide/prerequisites.md)
>
> The Horizon service is responsible for synchronizing with the Stellar network and processing ledger data.

> [card] [Installing](https://developers.stellar.org/docs/data/apis/horizon/admin-guide/installing.md)
>
> To install Horizon in production or non-development environments, we recommend the following based on target infrastructure.

> [card] [Configuring](https://developers.stellar.org/docs/data/apis/horizon/admin-guide/configuring.md)
>
> You are now ready to identify the configuration parameters needed to perform three important roles.

> [card] [Running](https://developers.stellar.org/docs/data/apis/horizon/admin-guide/running.md)
>
> Once you have established the Horizon database and have identified the Horizon runtime config per host, you're ready to run Horizon.

> [card] [Ingestion](https://developers.stellar.org/docs/data/apis/horizon/admin-guide/ingestion.md)
>
> Horizon API provides most of its utility through ingested data, and your Horizon server can be configured to listen for and ingest transaction results from...

> [card] [Monitoring](https://developers.stellar.org/docs/data/apis/horizon/admin-guide/monitoring.md)
>
> Metrics are emitted from Horizon over HTTP in the de facto text-based exposition format.

> [card] [Scaling](https://developers.stellar.org/docs/data/apis/horizon/admin-guide/scaling.md)
>
> Horizon enables different logical tiers that can be scaled independently for increasing throughput, isolation, and availability.

> [card] [Upgrading](https://developers.stellar.org/docs/data/apis/horizon/admin-guide/upgrading.md)
>
> Here we'll describe the recommended steps for upgrading a Horizon 2.x installation.

> [card] [Ingestion Filtering](https://developers.stellar.org/docs/data/apis/horizon/admin-guide/ingestion-filtering.md)
>
> Ingestion Filtering enables Horizon operators to drastically reduce the storage footprint of the historical data in the Horizon database by white-listing...