# Using Multiple LDAP Servers

### Auto Docker or Docker Compose

When using the docker version of KCM, you can list the multiple LDAP servers in your `docker-compose.yml` file using the environment variable `LDAP_SERVERS` in the environment section of the guacamole service, as shown below:

<pre><code>version: "3"
services:
    guacamole:
        image: keeper/guacamole:2
        restart: unless-stopped
        depends_on:
            - guacd
            - db
        environment:
            ACCEPT_EULA: "Y"
            GUACD_HOSTNAME: "guacd"
            LDAP_SERVERS: |
<strong>              - hostname: server1.example.net
</strong>                user-base-dn: OU=Users,DC=example,DC=net
                username-attribute: sAMAccountName
                search-bind-dn: CN=Guacamole,OU=Services,DC=example,DC=net
                search-bind-password: SomePassword!

              - hostname: server2.example.net
                user-base-dn: OU=Users,DC=example,DC=net
                username-attribute: sAMAccountName
                search-bind-dn: CN=Guacamole,OU=Services,DC=example,DC=net
                search-bind-password: SomePassword! 
                
</code></pre>

{% hint style="info" %}
Using `LDAP_SERVERS` will automatically create `/etc/guacamole/ldap-servers.yml` within the guacamole container.
{% endhint %}

{% hint style="warning" %}
When using `LDAP_SERVERS` in your docker-compose.yml, don't volume mount the ldap-servers.yml file (since this will be handled automatically). For advanced or non-docker installations, [follow this guide](https://newdocs.keeper.io/kcm-linux-rpm-method/authentication/authenticating-users-with-ldap/storing-connection-data-within-ldap).
{% endhint %}


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