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Course Outline
Collaboration Sovereignty Landscape
- Zimbra versus Microsoft Exchange versus Google Workspace: Total cost analysis.
- Benefits of single-tenant control, auditing, and data residency.
- Feature comparison between Network Edition and Open Source Edition.
Installation and Setup
- Preparation: Hostname configuration, DNS settings, firewall rules, and OS hardening.
- Deployment patterns for single-server and multi-server environments.
- Installation wizard, initial domain creation, and admin provisioning.
Messaging Core
- Integration of Postfix and OpenLDAP within Zimbra.
- Configuration of webmail, IMAP, and POP3 clients.
- Mobile access via ActiveSync, Exchange Web Services, and CalDAV.
Groupware Features
- Shared calendars, resource scheduling, and delegation capabilities.
- Contacts and global address lists linked to organizational units.
- Briefcase file sharing and document versioning.
Security and Authentication
- SSL/TLS setup and automation with Let's Encrypt.
- Two-factor authentication using TOTP and hardware keys.
- Tuning of anti-spam (Amavis, DKIM, SPF) and anti-virus (ClamAV) systems.
Directory Federation
- External LDAP and Active Directory authentication integration.
- Delegated administration and domain separation for multi-tenant scenarios.
Backup and Disaster Recovery
- Real-time backup and restore operations using zmbackup.
- Snapshot strategies for mail stores and database volumes.
- Cross-site replication and failover procedures.
Administration and Monitoring
- In-depth review of the admin console: COS, quotas, and message retention.
- CLI utilities for batch operations and scripting.
- Performance tuning and JVM memory allocation optimization.
Requirements
- Strong experience in Linux server administration.
- Knowledge of DNS management, including MX, A, TXT, and SRV records.
- Understanding of web servers, proxies, and Java applications.
Audience
- Enterprise messaging architects looking to replace Exchange or Google Workspace.
- Organizations seeking a single-tenant collaboration server.
- Government and educational sectors subject to data localization regulations.
21 Hours