Running My Own XMPP Server

8 days ago

Moved personal messaging to Signal for digital ownership, but still dependent on one service.
XMPP is federated, allowing server-to-server communication without being locked into a single provider.
Set up Prosody in Docker for XMPP server with features like file sharing, voice calls, and end-to-end encryption.
Required DNS records include SRV records for client and server connections, and A or CNAME records for file uploads and group chats.
Used Let's Encrypt with Cloudflare DNS challenge for TLS certificates, with monthly renewal via cron.
Docker setup includes Prosody with exposed ports for client and federation connections, and mounted volumes for data and configuration.
Prosody configuration includes modules for security, multi-device support, message archiving, and HTTP file uploads.
Enabled OMEMO encryption for end-to-end security, supported by clients like Monal, Conversations, and Gajim.
Set up a TURN/STUN server (coturn) for voice and video calls, sharing a secret with Prosody for temporary credentials.
Clients recommended: Monal for iOS, Conversations for Android, and Gajim for desktop, all supporting modern XMPP features.
Final setup includes Prosody, file uploads, message archive, push notifications, group chats, and voice calls in Docker containers.

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