Microsoft Azure Application Proxy
Microsoft Azure AD Application Proxy provides your organisation with a single sign-on (SSO) and secure remote access solution for web applications hosted on-premises. Some apps that you might want to publish include SharePoint sites, Outlook Web Access, or any other LOB web applications you have. These on-premise web applications are integrated with Azure AD, the same identity and control platform that is used by Office 365. End users can access your on-premise web applications the same way they access Office 365 and other SaaS apps integrated with Azure AD. You don’t need to change the network infrastructure or require VPN to provide this solution to your users.