Single sign-on (SSO) topic
Single sign-on (SSO) is an authentication scheme that allows a user to log in with a single ID to any of several related, yet independent, software systems. SSO supporters place emphasis on it reducing the risk of password fatigue and improvement of usability in terms of perceived corperate identity between different services of the same provider.
Conversely, single sign-off or single log-out (SLO) is the property whereby a single action of signing out terminates access to multiple software systems.
Sa-Token
一个轻量级 Java 权限认证框架，让鉴权变得简单、优雅！—— 登录认证、权限认证、分布式Session会话、微服务网关鉴权、单点登录、OAuth2.0
cas
Apereo CAS - Identity & Single Sign On for all earthlings and beyond.
oauth2-client
Easy integration with OAuth 2.0 service providers.
authentik
The authentication glue you need.
xxl-sso
A distributed single-sign-on framework.（分布式单点登录框架XXL-SSO）
granted
The easiest way to access your cloud.
authelia
The Single Sign-On Multi-Factor portal for web apps
tailscale
The easiest, most secure way to use WireGuard and 2FA.
zitadel
ZITADEL - Identity infrastructure, simplified for you.