FBA Site access issue

Question

FBA Site access
I need help/suggestion for the site.

https://abc.com sharepoint site had
Home > Site Settings > Permissions > Anonymous Access
Anonymous users can access:

Entire Web site

Due to which our site Landing page was https://abc.com/Pages/Default.aspx which is correct.

There was serious issue that Home > All Site Content ,Layouts , and other document library were accessible to anonymous users without authorization from google search and posed a strong security threat.

So I modified Home > Site Settings > Permissions > Anonymous Access

Anonymous users can access: to

'Lists and libraries' replacing 'Entire Web site'

So anonymous access to Home > All Site Content and other document library was restricted.

But our default landing page when we open the site became Login.aspx

Client has requested us to restore back to default.aspx page as landing page to site.



I have tried two options to solve the above problem

1) Replace <forms loginUrl="/_layouts /login.aspx " /> in Web.Config to <forms loginUrl="/pages /Default.aspx " />

which solved our landing page issue but after we login it still showed login page and not moved to default page having requisite menus.

2) Added 'webconfig.abc.xml' file in C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\CONFIG

when i run stsadm -o copyappbincontent to apply changes to site farm I got the following error

The web configration file, C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\config\webconfig.dlc.xml, does not have element "configuration/configSections/sectionGroup[@name='SharePoint']" or it is invalid.

I have follow