# Sentry

Full support for [Sentry](https://sentry.io/) exists to enable tracking errors and performance of the installation, this is not a user-visible integration but useful for running and monitoring Outline at scale.

## Setup

Make sure you have a [Sentry](https://sentry.io/) account and project setup, either cloud-hosted or self-host Sentry will work. Self-hosting Sentry is out of scope for this guide.

There are two environment variables, once added the integration will automatically become available upon restarting the server.

* `SENTRY_DSN` – The full date source name url, this can be found in the Sentry project configuration.
* `SENTRY_TUNNEL` – Optional, an HTTP endpoint to act as a proxy between Sentry and the browser. See the [Sentry docs for more details](https://docs.sentry.io/platforms/javascript/troubleshooting/#using-the-tunnel-option) on using this option.

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**Documents**

- [License restrictions](https://docs.getoutline.com/s/hosting/doc/license-restrictions-f9aq6uEL3H)
- [Requirements](https://docs.getoutline.com/s/hosting/doc/requirements-ULdYnwi4wG)
- [Installation methods](https://docs.getoutline.com/s/hosting/doc/installation-methods-pSvgz9j0QC)
- [Configuration](https://docs.getoutline.com/s/hosting/doc/configuration-509J4lAzjo)
- [Business + Enterprise](https://docs.getoutline.com/s/hosting/doc/business-enterprise-rv0715NxO3)
- [Backups](https://docs.getoutline.com/s/hosting/doc/backups-KZtPOADCHG)
- [Troubleshooting](https://docs.getoutline.com/s/hosting/doc/troubleshooting-HXckrzCqDJ)