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Course Outline
Collaboration Sovereignty Landscape
- Zimbra vs Microsoft Exchange vs Google Workspace: total cost analysis.
- Benefits of single-tenant control, auditability, and data residency.
- Feature comparison between Network Edition and Open Source Edition.
Installation and Setup
- Preparation: hostname configuration, DNS setup, firewall rules, and OS hardening.
- Deployment patterns for single-server and multi-server environments.
- Using the installation wizard, creating the initial domain, and admin provisioning.
Messaging Core
- Integrating Postfix and OpenLDAP within Zimbra.
- Configuring webmail, IMAP, and POP3 clients.
- Enabling mobile access via ActiveSync, Exchange Web Services, and CalDAV.
Groupware Features
- Shared calendars, resource scheduling, and delegation.
- Contacts and global address lists linked to organizational units.
- Briefcase file sharing and document versioning.
Security and Authentication
- Setting up SSL/TLS and automating certificates with LetsEncrypt.
- Implementing two-factor authentication with TOTP and hardware keys.
- Tuning anti-spam (amavis, DKIM, SPF) and anti-virus (ClamAV) protections.
Directory Federation
- External LDAP and Active Directory authentication.
- Delegated administration and domain separation for multi-tenant scenarios.
Backup and Disaster Recovery
- Real-time backup and restore using zmbackup.
- Snapshot strategies for mail store and database volumes.
- Cross-site replication and failover procedures.
Administration and Monitoring
- Deep dive into the Admin console: COS, quotas, and message retention.
- Using CLI utilities for batch operations and scripting.
- Performance tuning and JVM memory allocation.
Requirements
- Solid experience in Linux server administration.
- Knowledge of DNS management, including MX, A, TXT, and SRV records.
- Understanding of web servers, proxies, and Java applications.
Target Audience
- Enterprise messaging architects looking to replace Exchange or Google Workspace.
- Organizations seeking a single-tenant collaboration server.
- Government and education sectors subject to data localization mandates.
21 Hours
