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Duration 21 hours
Course Outline
Overview of Collaboration Sovereignty
- Comparing Zimbra, Microsoft Exchange, and Google Workspace in terms of total cost of ownership.
- Advantages of single-tenant control, audit capabilities, and data residency.
- Feature differences between the Network Edition and the Open Source Edition.
Deployment and Configuration
- Preparation steps: hostname setup, DNS configuration, firewall rules, and OS hardening.
- Exploring single-server versus multi-server deployment architectures.
- Using the installation wizard, creating the initial domain, and provisioning administrators.
Core Messaging Capabilities
- Integration of Postfix and OpenLDAP within the Zimbra ecosystem.
- Configuring Webmail, IMAP, and POP3 for client applications.
- Enabling mobile access through ActiveSync, Exchange Web Services, and CalDAV.
Groupware Functionality
- Managing shared calendars, resource scheduling, and delegation rights.
- Synchronizing contacts and global address lists with organizational units.
- Utilizing the Briefcase feature for file sharing and document versioning.
Security and Access Control
- Configuring SSL/TLS and automating certificate renewal with LetsEncrypt.
- Implementing two-factor authentication using TOTP and hardware security keys.
- Optimizing anti-spam measures (amavis, DKIM, SPF) and anti-virus scanning (ClamAV).
Directory Integration
- Authenticating against external LDAP directories and Active Directory.
- Setting up delegated administration and domain isolation for multi-tenant environments.
Data Protection and Recovery
- Performing real-time backups and restorations using zmbackup.
- Developing snapshot strategies for mail stores and database volumes.
- Implementing cross-site replication and failover procedures.
Ongoing Management and Performance
- In-depth exploration of the Admin console, including COS, quotas, and message retention policies.
- Utilizing CLI tools for batch processing and scripting tasks.
- Tuning performance and managing JVM memory allocation.
Requirements
- Proficiency in Linux server administration.
- Experience with DNS management, including MX, A, TXT, and SRV records.
- Familiarity with web servers, proxies, and Java application environments.
Target Audience
- Enterprise messaging architects seeking to migrate from Exchange or Google Workspace.
- Organizations looking for a single-tenant collaboration server solution.
- Government and educational institutions required to meet data localization regulations.
