This configuration file defines important variables like Server Root, Listen, ServerAdmin and ServerName. It restricts access to directories and files, denying access from all except allowed IP addresses or domains. Access restrictions can be set at the directory level in the httpd.conf file or overridden on a per-directory basis using .htaccess files.

2. Configuration File
httpd.conf

3. Important Variables
Server Root
Listen
ServerAdmin
ServerName
DocumentRoot

4. Access Restriction – Directory
<Directory C:/xampp/htdocs/protected>
order deny,allow
deny from all
allow from 10.192.162
</Directory>

5. Access Restriction - File
<Location C:/xampp/htdocs/private.html>
order deny,allow
deny from all
allow from .str.bsnl.co.in
</Location>

6. Access Restriction - .htaccess
<Directory />
AllowOverride All
</Directory>
<Directory />
AllowOverride None
</Directory>
<Directory c:/xampp/htdocs >
AllowOverride All
</Directory>