Mattermost - Self-hosted Slack compatible team messaging

Mattermost_ is a sleek, Slack-compatible open source service that makes it easy to self-host team communications. It brings messaging and file sharing into one place, accessible across PCs and mobile, with archiving and search. It integrates with a range of apps out-of-the-box and is extendable so you can build custom functionality on top of the Golang / React core.

This appliance includes all the standard features in TurnKey Core_, and on top of that:

• Mattermost configurations:

  • Mattermost installed from upstream source code to /opt/mattermost

    Security note: Updates to Mattermost may require supervision so they ARE NOT configured to install automatically. See below for updating Mattermost.

  • Includes Nginx (webserver); pre-configured to proxy Mattermost.

  • Pre-configured to use PostgreSQL (recommended for production).

• SSL support out of the box.

• Adminer_ administration frontend for PostgreSQL (listening on port 12322 - uses SSL).

• Postfix MTA (bound to localhost) to allow sending of email (e.g., password recovery).

• Webmin modules for configuring Postfix, PostgreSQL.

Supervised Manual Mattermost Update

Note: Check the Mattermost docs to ensure that upgrading your current version to the latest is supported. Always ensure that you have a tested backup before proceeding with software updates.

See the Official Mattermost docs_ for instructions on how to update.

Mattermost does not have a security only newsletter so we recommend that you subcribe to the Mattermost Newsletter_ to keep up to date.

Credentials (passwords set at first boot)

• Webmin, SSH: username root
• PostgreSQL, Adminer: username postgres

.. _Mattermost: https://www.mattermost.org/ .. _TurnKey Core: https://www.turnkeylinux.org/core .. _Adminer: https://adminer.org/ .. _Mattermost docs: https://docs.mattermost.com/administration/upgrade.html .. _Mattermost Newsletter: https://mattermost.us11.list-manage.com/subscribe?u=6cdba22349ae374e188e7ab8e&id=2add1c8034