Looking for logging into the Web Config 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 Web Config site. After that you can login as usual with your login credentials.
https://stackoverflow.com/questions/6227779/redirect-to-root-login-page-from-web-config
https://docs.microsoft.com/en-us/dotnet/api/system.web.security.formsauthentication.loginurl
https://forums.asp.net/t/2111802.aspx?Redirect+user+to+login+page+web+config
http://billatnapier.com/security12.aspx
http://elvex.ugr.es/decsai/csharp/web/security.xml
https://www.quora.com/How-do-I-redirect-to-the-login-page-from-system-web-in-web-config-in-C-ASP-NET
https://books.google.cl/books?id=IgBx6RRO0WcC&pg=PA520&lpg=PA520&dq=web+config+login
https://books.google.cl/books?id=-WShG0uezvEC&pg=PA58&lpg=PA58&dq=web+config+login
https://books.google.cl/books?id=mlgYoYgeaUUC&pg=PA181&lpg=PA181&dq=web+config+login
https://books.google.cl/books?id=ADsd2HavM-MC&pg=PA580&lpg=PA580&dq=web+config+login
https://www.ars-grin.gov/trac/GG/ticket/1693
https://books.google.cl/books?id=-DjyS8v4vCMC&pg=PA865&lpg=PA865&dq=web+config+login
https://www.adictosaltrabajo.com/2004/07/09/authforms/