**Dimension can only be installed after Matrix services are installed and running.**
**[Dimension](https://dimension.t2bot.io) can only be installed after Matrix services are installed and running.**
If you're just installing Matrix services for the first time, please continue with the [Configuration](configuring-playbook.md) / [Installation](installing.md) flow and come back here later.
## Prerequisites
For an Integration Manager like Dimension to work, your server needs to have federation enabled (`matrix_synapse_federation_enabled: true`). This is the default for this playbook, so unless you've explicitly disabled federation, you're okay.
For an Integration Manager like [Dimension](https://dimension.t2bot.io) to work, your server needs to have federation enabled (`matrix_synapse_federation_enabled: true`). This is the default for this playbook, so unless you've explicitly disabled federation, you're okay.
Other important prerequisite is the `dimension.<your-domain>` DNS record being set up correctly. See [Configuring your DNS server](configuring-dns.md) on how to set up DNS record correctly.