# Configuring ACME with In-Memory Database

## Overview

This document describes the process to configure ACME responder to use an in-memory database.

## Configuring ACME Database

A sample in-memory database configuration is available at
link:../../../base/acme/database/in-memory/database.conf[/usr/share/pki/acme/database/in-memory/database.conf].

To use an in-memory database, copy the sample `database.conf` into the `/etc/pki/pki-tomcat/acme` folder,
or execute the following command:

----
$ pki-server acme-database-mod --type in-memory
----

The `database.conf` should look like the following:

```
class=org.dogtagpki.acme.database.InMemoryDatabase
```

There are no parameters to configure for in-memory database.

## See Also

* link:Configuring_ACME_Database.md[Configuring ACME Database]
