Synapse and Element: Self-Hosted Chat Replacing Slack and Microsoft Teams Training Course

Federated Messaging Sovereignty

• Analysis of data silos and jurisdictional risks associated with proprietary platforms such as Slack and Microsoft Teams.
• Technical framework of the Matrix protocol, including homeserver architecture, room structures, event handling, and federation mechanisms.
• Overview of Synapse as the reference implementation, detailing its functional capabilities and resource requirements.
• Evaluation of alternative open-source platforms, specifically Mattermost, Rocket.Chat, and Zulip, in terms of suitability for government use cases.

Synapse Deployment

• Implementation of a containerized environment using Docker Compose, integrating Synapse, PostgreSQL, and Element-Web components.
• Guidance on native package installation procedures and configuration of systemd services for operational stability.
• Configuration of an Nginx reverse proxy to manage traffic and establish Transport Layer Security (TLS) encryption.
• Procedures for initial system configuration generation and database migration processes.

Client Configuration

• Deployment strategies for Element Web, including customization options for organizational branding.
• Instructions for configuring desktop and mobile clients to connect to private homeserver endpoints.
• Standard procedures for user account creation, authentication, and password recovery mechanisms.
• Definition of policies governing guest access and public room discovery.

Encryption and Security

• Implementation of end-to-end encryption standards utilizing the Olm and Megolm cryptographic protocols.
• Methods for device verification and cross-signing to establish trust relationships between devices.
• Protocols for key backup and recovery procedures using passphrase-based encryption.
• Clarification of administrative limitations regarding access to encrypted content and associated mitigation strategies.

Bridges and Integrations

• Configuration of interoperability bridges for legacy systems, including Slack, Discord, IRC, and WhatsApp.
• Setup of email notification services and integration with version control platforms such as GitHub and GitLab via webhooks.
• Integration of Jitsi to support encrypted video conferencing capabilities.
• Guidance for developing custom automation bots using the matrix-nio software development kit (SDK).

Federation and Governance

• Policies for managing federation connections through whitelist and blacklist configurations to control external network interactions.
• Procedures for upgrading room protocol versions and resolving state conflicts within federated networks.
• Establishment of limits and retention policies for media repositories to manage storage capacity.
• Utilization of antispam measures and tools for reporting abusive behavior.

Maintenance and Scaling

• Database optimization techniques and utilization of purge APIs to remove obsolete data and maintain performance.
• Strategies for media storage cleanup and offloading archives to Amazon S3-compatible object storage solutions.
• Configuration of worker mode architectures to support high-traffic deployments and improve resource distribution.
• Protocols for backing up homeserver state and executing disaster recovery procedures to ensure continuity for government operations.