# GitLab IntegrationGitLab integrates with multiple third-party services to allow external issue trackers and external authentication.See the documentation below for details on how to configure these services.+[External issue tracker](external-issue-tracker.md) Redmine, JIRA, etc.+[LDAP](ldap.md) Set up sign in via LDAP+[OmniAuth](omniauth.md) Sign in via Twitter, GitHub, and Google via OAuth.