---
title: Authentication with Auth-Service and TACACS+
slug: kronpam-how-to-guides-180/authentication-with-auth-service-and-tacacs
description: Learn about the new features included in version 2.20 of our document, including the Authentication service for TACACS+ or Auth-Service. Adjust LDAP configuration settings on the TACACS+ Management page for TACACS+ authentication. Understand the different
docTags: 
createdAt: 2022-08-17T11:26:58.000Z
---

:::hint{type="info"}
In previous versions, the TACACS+ service was used for authentication. Version 2.20 now includes the Authentication service (Auth-Service), enabling authentication with either TACACS+ or Auth-service. To do so, configure TACACS+ or Auth-Service for authentication in Tomcat or the proxies’ config files. There is no relation between these two services, and they work separately.
:::

If a device requires TACACS+ authentication, the LDAP configuration settings on the TACACS+ Management page must be adjusted. TACACS+ does not refer to LDAP configurations on the **LDAP Manager** page, whereas Auth-Service does, meaning that both services go to LDAP for their authentication requests, but the configurations are on different pages.

If the environment is multi-tenant, proxies must use Auth-Service, not TACACS+. If the environment is not multi-tenant, either Auth-Service or TACACS+ can be used.

If the environment has multiple domains, LDAP should be configured accordingly both in the **LDAP Manager** and on the **Tacacs Management** page. Both domains should be added separately so that users on different domains can authenticate proxies and web GUI by using the authentication service or Tacacs service.