description: "Authelia is an open-source authentication and authorization server and portal fulfilling the identity and access management (IAM) role of information security in providing multi-factor authentication and single sign-on (SSO) for your applications via a web portal. It acts as a companion for common reverse proxies."
lead: "Authelia is an open-source <ahref=\"./overview/authentication/introduction/\">authentication</a> and <ahref=\"./overview/authorization/access-control/\">authorization</a> server and portal fulfilling the identity and access management (IAM) role of information security in providing <ahref=\"./overview/authentication/introduction/\">multi-factor authentication</a> and single sign-on (SSO) for your applications via a web portal. It acts as a companion for <ahref=\"./overview/prologue/supported-proxies/\">common reverse proxies</a>."
