# LDAP authentication

## Settings menu

Users with the "Administrator" permission can enable and configure LDAP on the **Administration \> LDAP Configuration** page:

![AtlasServer_LDAP/image1.png](https://import.viva64.com/docx/blog/AtlasServer_LDAP/image1.png)

You can create multiple configurations to connect to several LDAP servers\.  When logging in via LDAP, authentication attempts will be made one by one until one of the servers confirms a successful login\.

To create a configuration, open the following dialog:

![AtlasServer_LDAP/image2.png](https://import.viva64.com/docx/blog/AtlasServer_LDAP/image2.png)

## Settings description

* Host: an address of the LDAP server, e\.g\.,`ad.company.com`\.
* Port: a connection port, `636` is commonly used\.
* Administrator DN: administrator's distinguished name, e\.g\.,`CN=my_ldap_user, OU=Managed Users, DC=ad, DC=company, DC=com`\.
* Administrator password: the password used for the administrator connection\.
* Base DN: a base DN, e\.g\.,`OU=Managed Users, DC=ad, DC=company, DC=com`\.
* User filter: a user search filter, e\.g\.,`(&(objectClass=user)(sAMAccountName={{*}}))`, where`{{*}}` is a placeholder for the username\.

## Security certificate

If the LDAP server requires a security certificate for connections from Atlas Server, add the certificate file to a directory from the `docker-compose.yml` configuration as follows:

```cpp
volumes:
  - ./dashboard_certs:/app/certs
```

For more information about deploying Atlas Server with Docker Compose, see the Docker Compose deployment\.