There are two Config Files Web.Config and Machine.Config
and these configurations files are XML-based text
files and have named web.config that can be appear
in any directory of web application created in ASP.NET
. Web.config configuration settings to all the files
and on child directory file of the application and
directory it is located in and to all virtual child
directories beneath it. Child directories have option
to override or modify settings that is specified in
parent directories .
The root configuration file WinNTMicrosoft.NETFrameworkconfigmachine.config
provides default configuration settings for the entire
machine and all application under it . But one thing
is that IIS cannot configures to direct browser access
to web.config files to ensure that their values cannot
become public and error which is shown is ASP.NET
to return 403: Access Forbidden. The main functioning
of Config file explorere it self at run time in ASP.NET
and ASP.NET uses these web.config configuration files
to hierarchically compute a unique collection of settings
for each incoming URL target request .Some of the
settings that's comes in Config files is just like
sessionstate. Session state features can be added
in web.config in session state tag.We can also set
the timeout policy there which is default 20 minutes
mainly there are four modes of session in config file.
Off -Indicates that session state is not
enabled.
Inproc - Indicates that session state is stored locally.
StateServer-Indicates that session state is stored
on a remote server.
SQLServer-Indicates that session state is stored
on the SQL Server.
And another section of the config file is connection
string or we can say that appSettings that's the great
advantage of config file that we can place our connection
string that's help in securing of our connection string
from the user because this file cannot be browse some
other feature also in config file just like Custom
Error, Authorization, Authentication assembly reference.
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