Chapter 14. Apache HTTP Server

199

See Section 14.5.59 and Section 14.5.23 for instructions on how to execute CGI scripts in directories

other than the

cgi bin

.

14.5.45.

Redirect

When a webpage is moved,

Redirect

can be used to map the old URL to a new URL. The format is

as follows:

Redirect /path/foo.html http://new_domain/path/foo.html

So, if an

HTTP request

is received

for a

page

which

used to

be

found

at

http://your_domain/path/foo.html,

the

server

will

send

back

the

new

URL

(http://new_domain/path/foo.html) to the client, which should attempt to fetch the document

from the new URL.

For more advanced Redirection you can use the

mod_rewrite

module included with the server.

14.5.46.

IndexOptions

IndexOptions

controls the appearance of server generated directing listings, by adding icons, file

descriptions, and so on. If

Options Indexes

is set (see Section 14.5.24), your Web server may

generate a directory listening when your Web server receives an HTTP request like the following:

http://your_domain/this_directory/

First, your Web server looks in that directory for a file from the list after the

DirectoryIndex

directive (usually,

index.html

). If your Web server does not find one of those files, it creates an

HTML directory listing of the subdirectories and files in the directory. You can modify the appearance

of this directory listing using certain directives in

httpd.conf

, including

IndexOptions

.

Your default configuration sets

FancyIndexing

on. If

FancyIndexing

is turned on, clicking on the

column headers in the directory listing will sort the order of the display by that header. Another click

on the same header will switch from ascending to descending order and back.

FancyIndexing

also

shows different icons for different files, depending upon file extensions. If you use the

AddDescrip 

tion

directive and turn

FancyIndexing

on, then a short description of a file will be included in the

server generated directory listing.

IndexOptions

has a number of other parameters which can be set to control the appearance of server

generated directories. Parameters include

IconHeight

and

IconWidth

, to make the server include

HTML

HEIGHT

and

WIDTH

tags for the icons in server generated webpages;

IconsAreLinks

, for

making the icons act as part of the HTML link anchor along with the filename and others.

14.5.47.

AddIconByEncoding

This directive names icons which will be displayed by files with MIME encoding, in server generated

directory listings. For example, by default, your Web server shows the

compressed.gif

icon next

to MIME encoded x compress and x gzip files in server generated directory listings.

14.5.48.

AddIconByType

This directive names icons which will be displayed next to files with MIME types in server generated

directory listings. For example, your server is set to show the icon

text.gif

next to files with a

mime type of "text," in server generated directory listings.