Ok so I am using forms authentication in my web site and I defined this in my config. Therefore I have an ASPNETDB.MDF. So do I need to have a database called ASPNETDB.MDF in my web host? If that is the case then how do I connect this so that my site uses this to verify users? I am sorry this seems to be like a very noob question
You dont have to use a database to use forms authentication, you can define the entries in the web.config file if you like. It depends on the MembershipProvider that you are using.
Have a look here for an example
Place the ASPNETDB.MDF in your App_Data folder.
The connection string to use is <add name="LocalSqlServer" connectionString="Data Source=.\SQLExpress;Integrated Security=True;User Instance=True;AttachDBFilename=|DataDirectory|aspnetdb.mdf" />
When you hook this connection string to your membership provide the authentication will use your ASPNETDB.MDF file.
-------------------Try the following-----------------
Sorry place a above the connection string above you should be able to change the name of the connection string. You will also need to change this in your membership element.
<connectionStrings>
<clear />
<add name="NewConnectionString" connectionString="Data Source=.\SQLExpress;Integrated Security=True;User Instance=True;AttachDBFilename=|DataDirectory|aspnetdb.mdf" providerName="System.Data.SqlClient" />
</connectionStrings>
<membership>
<providers>
<clear/>
<add name="AspNetSqlMembershipProvider"
connectionStringName="NewConnectionString"
...
type="System.Web.Security.SqlMembershipProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
</providers>
</membership>