# User documentation

The following are links to GCM user support documentation:

- [Frequently asked questions][gcm-faq]
- [Command-line usage][gcm-usage]
- [Configuration options][gcm-config]
- [Environment variables][gcm-env]
- [Enterprise configuration][gcm-enterprise-config]
- [Network and HTTP configuration][gcm-net-config]
- [Credential stores][gcm-credstores]
- [Host provider specification][gcm-host-provider]
- [Azure Repos OAuth tokens][gcm-azure-tokens]
- [Azure Managed Identities and Service Principals][gcm-misp]
- [GitLab support][gcm-gitlab]
- [Generic OAuth support][gcm-oauth]
- [NTLM and Kerberos authentication][gcm-ntlm-kerberos]

[gcm-azure-tokens]: azrepos-users-and-tokens.md
[gcm-config]: configuration.md
[gcm-credstores]: credstores.md
[gcm-enterprise-config]: enterprise-config.md
[gcm-env]: environment.md
[gcm-faq]: faq.md
[gcm-gitlab]: gitlab.md
[gcm-host-provider]: hostprovider.md
[gcm-misp]: azrepos-misp.md
[gcm-net-config]: netconfig.md
[gcm-oauth]: generic-oauth.md
[gcm-usage]: usage.md
[gcm-ntlm-kerberos]: ntlm-kerberos.md