I am looking for a git hosting environment for several users. Therefore i've searched for comparisons between Gitolite, Gitlab and Gitorius. But i get nothing what could be useful.
Is there anybody, who has experiences with different hosting tools and could provide an advice?
It is the https or ssh layer which allows the authentication of a user, and the git repo hosting itself.
See "How do programs like gitolite work?"
When comparing GitLab features and Gitorious features, the issue tracker is more complete, the fork and authorization levels are present, GitLab has teams and groups, webhooks, and API.
The development is more active (one release every month) on GitLab.
Update: GitLab has acquired Gitorious
You can give Gitorious and Gitlab a try at Bitnami (http://bitnami.com/stack/gitorious and http://bitnami.com/stack/gitlab) There you can download installers, virtual machines and launch cloud servers for Amazon and Azure. All of these options are free. You can launch a 1-hour demo server as well (if you just want to get a quick feeling for the app). Disclaimer: I am one of the Bitnami developers, but as stated above, the packages are completely free to use.