Form Based Authentication

Not sure if this would be useful for you all. I encountered this error page few days ago during my development.

The server that I was developing at this moment has two main pages, one with Form Based Authentication and one with Windows Based Authentication. The one with Windows Based Authentication had no problem but the Form Based Authentication encountered this problem because the Form Based Authentication page is meant to be directed from another portal page where the login credentials will be passed from that portal page, and during development, we have no access to portal.

Hence the workaround that I've used for this would be to append this "_layouts/Login.aspx?ReturnUrl=%2f" to the URL so the full URL would be "http://<server name>/"_layouts/Login.aspx?ReturnUrl=%2f". With this URL, the page will direct us to the login page as depicted below.

Note: I'm rather new to Microsoft Office SharePoint. Hence, if I made any mistakes, kindly inform me and I'll correct it.