Looking for logging into the Ldap Find User By 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 Ldap Find User By site. After that you can login as usual with your login credentials.
https://social.technet.microsoft.com/Forums/sharepoint/en-US/ce3e0b68-60bb-499e-b622-b0110cd4eda5/search-a-user-in-ad-ldap-query-string?forum=winserverDS
https://stackoverflow.com/questions/508014/active-directory-ldap-query-by-samaccountname-and-domain
https://confluence.atlassian.com/kb/how-to-write-ldap-search-filters-792496933.html
https://autohotkey.com/board/topic/55874-solvedldap-query-for-a-specific-user/
https://forums.asp.net/t/1100757.aspx?LDAP+query+for+user+information+
https://community.spiceworks.com/topic/1183600-90-days-no-logon-ldap-query
https://snipe-it.readme.io/docs/ldap-sync-login
https://answers.splunk.com/answers/579587/why-cant-an-authorized-user-login-via-ldap.html
https://community.perforce.com/s/article/2590
https://www.dynatrace.com/support/help/setup-and-configuration/managed/users-and-groups-setup/manage-users-and-groups-with-ldap/
https://wordpress.org/plugins/ldap-login-for-intranet-sites/
https://serverfault.com/questions/143685/ldap-search-filter-for-active-directory
https://support.symantec.com/en_US/article.TECH241748.html