Linux Enterprise Network with Kerberos, OpenLDAP & SSSD | Linux + macOS

00:00 Introduction 01:02 Logging in and verifying Kerberos environment 02:13 Fileservers 07:27 SSH and Kerberos Setup 13:11 New LDAP user with Apache Directory Studio 20:16 Logging in the new user 23:43 Databases MariaDB and PostgreSQL 29:53 LibreOffice Base 31:19 Mail server with Postfix and CyrusIMAPD 32:40 Thunderbird first connection on macOS 35:06 Outro This video demonstrates a real-world, enterprise-style network environment built around **Kerberos authentication and OpenLDAP directory services**, featuring a replicated master–slave server architecture and a multi-domain configuration. The setup provides centralized identity management, authentication, and access to network resources, allowing Linux and macOS users to log in and securely connect to shared services across the network. *Topics and technologies covered:* *Kerberos:* Centralized authentication, realms, Key Distribution Centers (KDCs), and ticket-based authentication. *OpenLDAP:* Directory services, user accounts, groups, and LDAP replication. *SSSD:* Integrating Linux desktops with centralized LDAP and Kerberos authentication. *Linux and macOS integration:* Network user authentication and access to shared resources across both operating systems. *Database servers:* Centralized access to SQL database services. *File servers:* Network file sharing and authenticated access to shared storage. *Mail servers:* Centralized email services and authentication. *SSH:* Secure remote access using centrally managed identities and Kerberos authentication. The goal is to demonstrate how open-source technologies can be combined to create a practical, scalable, enterprise-style infrastructure without relying on proprietary directory services. Rather than focusing on isolated configurations, this video shows how the different components work together as part of a functioning network environment.