In a terminal window, ssh onto the system that will host the Mattermost Server.

Using wget, download the Mattermost Server release you want to install.

wget https://releases.mattermost.com/9.11.1/mattermost-9.11.1-linux-amd64.tar.gz
wget https://releases.mattermost.com/9.11.1/mattermost-9.11.1-linux-amd64.tar.gz

If you are looking for an older release, Enterprise and Team Edition releases can be found in our version archive documentation.