Looking for logging into the External Website With Active Directory site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the External Website With Active Directory site. After that you can login as usual with your login credentials.
https://www.techrepublic.com/forums/discussions/using-active-directory-authentication-for-external-web-site/
https://docs.microsoft.com/en-us/aspnet/web-api/overview/security/external-authentication-services
https://docs.microsoft.com/en-us/windows-server/identity/ad-fs/design/provide-your-active-directory-users-access-to-the-applications-and-services-of-other-organizations
https://forums.asp.net/t/1855512.aspx?Active+Directory+Authentication+on+an+External+Website+
http://brianvanderplaats.com/2017/01/17/Website-Authentication-Using-ADFS-Overview/
https://community.spiceworks.com/topic/230213-external-application-requires-ldap-access-to-active-directory
https://support.freshservice.com/support/solutions/articles/169196-setting-up-active-directory-single-sign-on-sso-for-remote-authentication
https://stackoverflow.com/questions/31225396/password-less-authentication-using-corporate-active-directory-on-external-inter
https://serverfault.com/questions/526205/my-public-website-name-and-ad-domain-name-are-the-same-how-can-i-get-to-my-exte
https://auth0.com/docs/connections/enterprise/active-directory
https://docs.kentico.com/k12/managing-users/user-registration-and-authentication/external-authentication-on-mvc-sites
https://salesforce.stackexchange.com/questions/157989/allow-external-website-authenticated-users-to-access-customer-community
https://de.wordpress.org/plugins/ldap-login-for-intranet-sites/