1. Redirection
Allow requests to be moved about your file system or around the web
ScriptAlias
Allows you to run CGI scripts
Simple to use

2. Redirection ScriptAlias url_path dir_or_filename
ScriptAliasMasth regex dir_or_filename
Allows substitution
i.e.
ScriptAlias ^/cgi-bin/(.*) /var/lib/apache/cgi-bin/$1
Alias url_path dir_or_filename
Allows documents to be stored somewhere other than DocumentRoot

3. Redirection AliasMatch regex dir_or_filename UserDir directory
Default: UserDir public_html
Client is asking for data from a users home directory

4. Redirection Redirect url-path url Maps a URL onto a new one
RedirectMatch regex url
Important difference between Alias and Redirect is the browser becomes aware of the new location in a Redirect

5. Redirection
Rewrite
Takes a rewriting pattern and applies it to the URL
Very powerful if enabled
RewriteEngine on | off

6. Redirection RewriteLog filename RewriteLogLevel number
Controls the verbosity of the logging
0 means no logging
9 means almost every action is logged
A number above 2 slows server down

7. Redirection RewriteRule pattern substitution (flags)
Used as many times as necessary
Each rule applies output of the proceeding action
See page 166 for flags

8. Redirection Example of RewriteRule
<VirtualHost whatever.com> ….. RewriteEngine On RewriteLog logs/rewrite RewriteLogLevel 9 RewriteRule ^/info/([^/]+)/([^/]+)$ /cgi-bin/cardinfo?$2+$1 [PT] ScriptAlias /cgi-bin /var/lib/apache/cgi-bin </VirtualHost>