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There is also http://rocket.chat http://rocket.chat (Open source) http://ryver.com http://ryver.com (free hosted, will add additional premium features later fo

• jjawssd 10y ago
  Maybe something has changed but Mattermost has been far more reliable than rocket chat in my experience
  • compuguy 10y ago
    I've managed a rocket.chat server at a previous job, and its very stable as well. The big plus is that its completely free (including ldap support) vs slack and mattermost.
    • leipert 10y ago
      Mattermost is open source as well. If you use gitlab (CE or EE), you can easily setup Mattermost with LDAP as well: https://gitlab.com/gitlab-org/gitlab-mattermost https://gitlab.com/gitlab-org/gitlab-mattermost
      • compuguy 10y ago
        I'm aware. But the important features for a small company (external auth, ldap) are on a paid tier for Mattermost. Its good that mattermost can tie into gitlab's authentication via ldap (no ldap group permissions though with the OSS tier). Edit: Gitlab doesn't officially support SSO on top of SSO (AD/LDAP, etc), so its at your own peril: https://docs.mattermost.com/deployment/sso-gitlab.html https://docs.mattermost.com/deployment/sso-gitlab.html