Grafana has transformed from a data visualization platform into a comprehensive observability platform, offering features such as infrastructure monitoring and incident response. As organizations expand their use of Grafana, secure and efficient authentication methods, including LDAP, basic authentication, JWT, and single sign-on (SSO), become crucial. SSO, which offers enhanced security and a better user experience by centralizing authentication management, has recently been improved in Grafana with the introduction of a new UI, API support, and Terraform integration to simplify configuration. These updates eliminate the need to restart Grafana after changes and allow real-time configuration validation. Best practices for setting up SSO include understanding identity providers, correctly configuring redirect URIs, and utilizing OAuth or SAML features to enhance security. The platform also supports various methods for troubleshooting SSO configurations, emphasizing the importance of understanding identity protocols and using tools like HTTP tracers for effective debugging. Looking forward, Grafana plans to introduce new configuration interfaces for LDAP, further simplifying the authentication setup process.