This directive is equivalent to Alias, but makes use of regular expressions, instead of simple prefix matching. The supplied regular expression is matched against the URL-path, and if it matches, the server will substitute any parenthesized matches into the given string and use it as a filename. For example, to activate the /icons directory, one might use:
AliasMatch ^/icons(.*) /usr/local/apache/icons$1
The Alias directive allows documents to be stored in the local filesystem other than under the DocumentRoot. URLs with a (%-decoded) path beginning with URL-path will be mapped to local files beginning with directory-path. The URL-path is case-sensitive, even on case-insensitive file systems.
Alias /image /ftp/pub/image
It can be done with the help of Name Based Virtual hosting.
Loglevel debug will give you more information in the error log in order to debug a problem.
mod_perl scripting module to allow better Perl script performance and easy integration with the web server.
During a normal restart, the server is stopped and then started, causing some requests to be lost. A graceful restart allows Apache children to continue to serve their current requests until they can be replaced with children running the new configuration.
The main configuration file of Apache server is httpd.conf
http – port 80
https – port 443
It is a location of files which are accessible by clients. By default, the Apache HTTP server in RedHat Enterprise Linux is configured to serve files from the /var/www/html/ directory.