Mattermost services ports
docs.mattermost.com/getting-started/architecture-overview.html
Configuration settings
docs.mattermost.com/configure/configuration-settings.html
MySQL installation troubleshooting
docs.mattermost.com/install/trouble_mysql.html
Troubleshooting Mattermost issues
docs.mattermost.com/install/troubleshooting.html
Deploy Mattermost
docs.mattermost.com/guides/deployment.html docs.mattermost.com/install/installing-ubuntu-2004-LTS.html
Configure Mattermost server
docs.mattermost.com/install/installing-ubuntu-1804-LTS.html#install-ubuntu-server-18-04-lts www.focalboard.com/download/mattermost/
Postgresql connection problem solution (part 2)
stackoverflow.com/questions/56274102/the-problem-with-the-installation-mattermost-server
Tutorial
docs.mattermost.com/boards/working-with-boards.html#adding-cards