The following directives are part of a httpd.conf file . They are used for adding new sites i.e. features for the server in the httpd.conf file.
1. Document Root
It contains HTML files which are served in response to requests. The default DocumentRoot is set to /var/www/html.
Example : Document Root
Server receives a request for the following document
Server finds for the following file in the default directory
<Directory /path/to/directory> and </Directory> tags are used to enclose a group of configuration directives which apply only to that directory and all of its subdirectories.
Example : Directory
If CGI scripts are stored in /home/my_cgi_directory, add the following directory container to httpd.conf file
It specifies the file where server errors are logged. By default, it is set to “/var/log/httpd/error_log”.
It identifies the ports on which server will accept incoming requests. By default, it is set to port 80 and port 443 for both non-secure and secure web communications.
The <Location> and </Location> tags allow you to specify the access control based on URL.
Example : Location
If you allow people to see status report, use the following directives
Deny from all
Allow from <.TutorialRide.com>
If a web page is moved, redirecting helps in mapping the old URL to a new URL.
Redirect /path/CareerRide.html http://new_domain/path/CareerRide.html
Advantages of VirtualHost
- The <VirtualHost> and </VirtualHost> tags outline the characteristics of a virtual host.
- It accepts most configuration directives.
- It refers to Apache's ability to serve multiple universal resource identifiers (URIs) from the same physical machine.
- It means several domains such as www.CareerRide.com and www.TutorialRide.com, are run by a single web server on a single physical machine.
- It saves administrative effort.
- It requires only a single web server to be maintained.
- It saves hardware expenses.
- In VirtualHost each domain does not require a dedicated server.
Apache modules are divided into four different types
1. Base Modules:
- Modules allow the activation or deactivation of the script languages.
- They are only allowed for use in web server.
- Apache software is built in modular fashion.
- Most of the tasks are handled by modules.
By default, these modules are compiled into Apache.
2. Extension Modules:
In Apache software package these modules are included, but not compiled into the server statically.
3. External Modules:
External modules are not included in the official Apache distribution.
4. Multiprocessing Modules (MPMs):
These modules are responsible for accepting and handling requests to the web server, representing the core of the web server software.