Apache HTTP Server Version 2.4

Apache > HTTP Server > Documentation > Version 2.4 > Modules

# Apache Module mod_autoindex

Available Languages: en | fr | ja | ko | tr

Description: | Generates directory indexes, automatically, similar to the Unix `ls` command or the Win32 `dir` shell command
Status: | Base
Module Identifier: | autoindex_module
Source File: | mod_autoindex.c

### Summary

The index of a directory can come from one of two sources:

- A file located in that directory, typically called `index.html`. The `DirectoryIndex` directive sets the name of the file or files to be used. This is controlled by `mod_dir`.
- Otherwise, a listing generated by the server. The other directives control the format of this listing. The `AddIcon`, `AddIconByEncoding` and `AddIconByType` are used to set a list of icons to display for various file types; for each file listed, the first icon listed that matches the file is displayed. These are controlled by `mod_autoindex`.

The two functions are separated so that you can completely remove (or replace) automatic index generation should you want to.

Automatic index generation is enabled with using `Options +Indexes`. See the `Options` directive for more details.

If the `FancyIndexing` option is given with the `IndexOptions` directive, the column headers are links that control the order of the display. If you select a header link, the listing will be regenerated, sorted by the values in that column. Selecting the same header repeatedly toggles between ascending and descending order. These column header links are suppressed with the `IndexOptions` directive's `SuppressColumnSorting` option.

Note that when the display is sorted by "Size", it's the actual size of the files that's used, not the displayed value - so a 1010-byte file will always be displayed before a 1011-byte file (if in ascending order) even though they both are shown as "1K".

### Topics

- Autoindex Request Query Arguments

### Directives

### Bugfix checklist

- httpd changelog
- Known issues
- Report a bug

## Autoindex Request Query Arguments ¶

Various query string arguments are available to give the client some control over the ordering of the directory listing, as well as what files are listed. If you do not wish to give the client this control, the `IndexOptions IgnoreClient` option disables that functionality.

The column sorting headers themselves are self-referencing hyperlinks that add the sort query options shown below. Any option below may be added to any request for the directory resource.

- `C=N` sorts the directory by file name
- `C=M` sorts the directory by last-modified date, then file name
- `C=S` sorts the directory by size, then file name
- `C=D` sorts the directory by description, then file name
- `O=A` sorts the listing in Ascending Order
- `O=D` sorts the listing in Descending Order
- `F=0` formats the listing as a simple list (not FancyIndexed)
- `F=1` formats the listing as a FancyIndexed list
- `F=2` formats the listing as an HTMLTable FancyIndexed list
- `V=0` disables version sorting
- `V=1` enables version sorting
- `P=pattern` lists only files matching the given pattern

Note that the 'P'attern query argument is tested after the usual `IndexIgnore` directives are processed, and all file names are still subjected to the same criteria as any other autoindex listing. The Query Arguments parser in `mod_autoindex` will stop abruptly when an unrecognized option is encountered. The Query Arguments must be well formed, according to the table above.

The simple example below, which can be clipped and saved in a header.html file, illustrates these query options. Note that the unknown "X" argument, for the submit button, is listed last to assure the arguments are all parsed before `mod_autoindex` encounters the X=Go input.

### Example

    <form action="" method="get">
        Show me a <select name="F">
            <option value="0"> Plain list</option>
            <option value="1" selected="selected"> Fancy list</option>
            <option value="2"> Table list</option>
        </select>
        Sorted by <select name="C">
            <option value="N" selected="selected"> Name</option>
            <option value="M"> Date Modified</option>
            <option value="S"> Size</option>
            <option value="D"> Description</option>
        </select>
        <select name="O">
            <option value="A" selected="selected"> Ascending</option>
            <option value="D"> Descending</option>
        </select>
        <select name="V">
            <option value="0" selected="selected"> in Normal order</option>
            <option value="1"> in Version order</option>
        </select>
        Matching <input type="text" name="P" value="*" />
        <input type="submit" name="X" value="Go" />
    </form>

## AddAlt Directive ¶

Description: | Alternate text to display for a file, instead of an icon selected by filename
Syntax: | `AddAlt string file [file] ...`
Context: | server config, virtual host, directory, .htaccess
Override: | Indexes
Status: | Base
Module: | mod_autoindex

`AddAlt` provides the alternate text to display for a file, instead of an icon, for `FancyIndexing`. File is a file extension, partial filename, wild-card expression or full filename for files to describe. If String contains any whitespace, you have to enclose it in quotes (`"` or `'`). This alternate text is displayed if the client is image-incapable, has image loading disabled, or fails to retrieve the icon.

    AddAlt "PDF file" *.pdf
    AddAlt Compressed *.gz *.zip *.Z

## AddAltByEncoding Directive ¶

Description: | Alternate text to display for a file instead of an icon selected by MIME-encoding
Syntax: | `AddAltByEncoding string MIME-encoding [MIME-encoding] ...`
Context: | server config, virtual host, directory, .htaccess
Override: | Indexes
Status: | Base
Module: | mod_autoindex

`AddAltByEncoding` provides the alternate text to display for a file, instead of an icon, for `FancyIndexing`. MIME-encoding is a valid content-encoding, such as `x-compress`. If String contains any whitespace, you have to enclose it in quotes (`"` or `'`). This alternate text is displayed if the client is image-incapable, has image loading disabled, or fails to retrieve the icon.

    AddAltByEncoding gzip x-gzip

## AddAltByType Directive ¶

Description: | Alternate text to display for a file, instead of an icon selected by MIME content-type
Syntax: | `AddAltByType string MIME-type [MIME-type] ...`
Context: | server config, virtual host, directory, .htaccess
Override: | Indexes
Status: | Base
Module: | mod_autoindex

`AddAltByType` sets the alternate text to display for a file, instead of an icon, for `FancyIndexing`. MIME-type is a valid content-type, such as `text/html`. If String contains any whitespace, you have to enclose it in quotes (`"` or `'`). This alternate text is displayed if the client is image-incapable, has image loading disabled, or fails to retrieve the icon.

    AddAltByType 'plain text' text/plain

## AddDescription Directive ¶

Description: | Description to display for a file
Syntax: | `AddDescription string file [file] ...`
Context: | server config, virtual host, directory, .htaccess
Override: | Indexes
Status: | Base
Module: | mod_autoindex

This sets the description to display for a file, for `FancyIndexing`. File is a file extension, partial filename, wild-card expression or full filename for files to describe. String is enclosed in double quotes (`"`).

    AddDescription "The planet Mars" mars.gif
    AddDescription "My friend Marshall" friends/mars.gif

The typical, default description field is 23 bytes wide. 6 more bytes are added by the `IndexOptions SuppressIcon` option, 7 bytes are added by the `IndexOptions SuppressSize` option, and 19 bytes are added by the `IndexOptions SuppressLastModified` option. Therefore, the widest default the description column is ever assigned is 55 bytes.

Since the File argument may be a partial file name, please remember that a too-short partial filename may match unintended files. For example, `le.html` will match the file `le.html` but will also match the file `example.html`. In the event that there may be ambiguity, use as complete a filename as you can, but keep in mind that the first match encountered will be used, and order your list of `AddDescription` directives accordingly.

See the DescriptionWidth `IndexOptions` keyword for details on overriding the size of this column, or allowing descriptions of unlimited length.

### Caution

Descriptive text defined with `AddDescription` may contain HTML markup, such as tags and character entities. If the width of the description column should happen to truncate a tagged element (such as cutting off the end of a bolded phrase), the results may affect the rest of the directory listing.

### Arguments with path information

Absolute paths are not currently supported and do not match anything at runtime. Arguments with relative path information, which would normally only be used in htaccess context, are implicitly prefixed with '*/' to avoid matching partial directory names.

## AddIcon Directive ¶

Description: | Icon to display for a file selected by name
Syntax: | `AddIcon icon name [name] ...`
Context: | server config, virtual host, directory, .htaccess
Override: | Indexes
Status: | Base
Module: | mod_autoindex

This sets the icon to display next to a file ending in name for `FancyIndexing`. Icon is either a (%-escaped) relative URL to the icon, a fully qualified remote URL, or of the format `(alttext,url)` where alttext is the text tag given for an icon for non-graphical browsers.

Name is either `^^DIRECTORY^^` for directories, `^^BLANKICON^^` for blank lines (to format the list correctly), a file extension, a wildcard expression, a partial filename or a complete filename.

`^^BLANKICON^^` is only used for formatting, and so is unnecessary if you're using `IndexOptions HTMLTable`.

    #Examples
    AddIcon (IMG,/icons/image.png) .gif .jpg .png
    AddIcon /icons/dir.png ^^DIRECTORY^^
    AddIcon /icons/backup.png *~

`AddIconByType` should be used in preference to `AddIcon`, when possible.

## AddIconByEncoding Directive ¶

Description: | Icon to display next to files selected by MIME content-encoding
Syntax: | `AddIconByEncoding icon MIME-encoding [MIME-encoding] ...`
Context: | server config, virtual host, directory, .htaccess
Override: | Indexes
Status: | Base
Module: | mod_autoindex

This sets the icon to display next to files with `FancyIndexing`. Icon is either a (%-escaped) relative URL to the icon, a fully qualified remote URL, or of the format `(alttext,url)` where alttext is the text tag given for an icon for non-graphical browsers.

MIME-encoding is a valid content-encoding, such as `x-compress`.

    AddIconByEncoding /icons/compress.png x-compress

## AddIconByType Directive ¶

Description: | Icon to display next to files selected by MIME content-type
Syntax: | `AddIconByType icon MIME-type [MIME-type] ...`
Context: | server config, virtual host, directory, .htaccess
Override: | Indexes
Status: | Base
Module: | mod_autoindex

This sets the icon to display next to files of type MIME-type for `FancyIndexing`. Icon is either a (%-escaped) relative URL to the icon, a fully qualified remote URL, or of the format `(alttext,url)` where alttext is the text tag given for an icon for non-graphical browsers.

MIME-type is a wildcard expression matching required the mime types.

    AddIconByType (IMG,/icons/image.png) image/*

## DefaultIcon Directive ¶

Description: | Icon to display for files when no specific icon is configured
Syntax: | `DefaultIcon url-path`
Context: | server config, virtual host, directory, .htaccess
Override: | Indexes
Status: | Base
Module: | mod_autoindex

The `DefaultIcon` directive sets the icon to display for files when no specific icon is known, for `FancyIndexing`. Url-path is a (%-escaped) relative URL to the icon, or a fully qualified remote URL.

    DefaultIcon /icon/unknown.png

## HeaderName Directive ¶

Description: | Name of the file that will be inserted at the top of the index listing
Syntax: | `HeaderName filename`
Context: | server config, virtual host, directory, .htaccess
Override: | Indexes
Status: | Base
Module: | mod_autoindex

The `HeaderName` directive sets the name of the file that will be inserted at the top of the index listing. Filename is the name of the file to include.

    HeaderName HEADER.html

Both HeaderName and `ReadmeName` now treat Filename as a URI path relative to the one used to access the directory being indexed. If Filename begins with a slash, it will be taken to be relative to the `DocumentRoot`.

    HeaderName /include/HEADER.html

Filename must resolve to a document with a major content type of `text/*` (e.g., `text/html`, `text/plain`, etc.). This means that filename may refer to a CGI script if the script's actual file type (as opposed to its output) is marked as `text/html` such as with a directive like:

    AddType text/html .cgi

Content negotiation will be performed if `Options` `MultiViews` is in effect. If filename resolves to a static `text/html` document (not a CGI script) and either one of the `options` `Includes` or `IncludesNOEXEC` is enabled, the file will be processed for server-side includes (see the `mod_include` documentation).

If the file specified by `HeaderName` contains the beginnings of an HTML document (<html>, <head>, etc.) then you will probably want to set `IndexOptions +SuppressHTMLPreamble`, so that these tags are not repeated.

### See also

- `ReadmeName`

## IndexHeadInsert Directive ¶

Description: | Inserts text in the HEAD section of an index page.
Syntax: | `IndexHeadInsert "markup ..."`
Context: | server config, virtual host, directory, .htaccess
Override: | Indexes
Status: | Base
Module: | mod_autoindex

The `IndexHeadInsert` directive specifies a string to insert in the <head> section of the HTML generated for the index page.

    IndexHeadInsert "<link rel=\"sitemap\" href=\"/sitemap.html\">"

## IndexIgnore Directive ¶

Description: | Adds to the list of files to hide when listing a directory
Syntax: | `IndexIgnore file [file] ...`
Default: | `IndexIgnore "."`
Context: | server config, virtual host, directory, .htaccess
Override: | Indexes
Status: | Base
Module: | mod_autoindex

The `IndexIgnore` directive adds to the list of files to hide when listing a directory. File is a filename or pattern which may contain the `?` and `*` wildcard characters. `?` matches any single character, and `*` matches any sequence of characters, including an empty sequence. Multiple IndexIgnore directives add to the list, rather than replacing the list of ignored files. By default, the list contains `.` (the current directory).

    IndexIgnore .??* *~ *# HEADER* README* RCS CVS *,v *,t

If File contains a `/` character, only the portion after the last `/` is used for matching against filenames. For example, `*/.??*` is equivalent to `.??*`.

### Differences from shell wildcard patterns

The wildcard matching used here is not the same as shell-style (glob) filename pattern matching. In particular:

- Bracket expressions such as `[abc]` or `[!.]` are not supported; they are treated as literal characters.
- A leading `.` in a filename is not treated specially. For example, `*~` will match `.example~`, whereas a shell glob would not.

### Regular Expressions

This directive does not currently work in configuration sections that have regular expression arguments, such as `<DirectoryMatch>`

## IndexIgnoreReset Directive ¶

Description: | Empties the list of files to hide when listing a directory
Syntax: | `IndexIgnoreReset ON|OFF`
Context: | server config, virtual host, directory, .htaccess
Override: | Indexes
Status: | Base
Module: | mod_autoindex
Compatibility: | 2.3.10 and later

The `IndexIgnoreReset` directive removes any files ignored by `IndexIgnore` otherwise inherited from other configuration sections.

    <Directory "/var/www">
        IndexIgnore *.bak .??* *~ *# HEADER* README* RCS CVS *,v *,t
    </Directory>
    <Directory "/var/www/backups">
        IndexIgnoreReset ON
        IndexIgnore .??* *# HEADER* README* RCS CVS *,v *,t
    </Directory>

Review the default configuration for a list of patterns that you might want to explicitly ignore after using this directive.

## IndexOptions Directive ¶

Description: | Various configuration settings for directory indexing
Syntax: | `IndexOptions [+|-]option [[+|-]option] ...`
Default: | `By default, no options are enabled.`
Context: | server config, virtual host, directory, .htaccess
Override: | Indexes
Status: | Base
Module: | mod_autoindex

The `IndexOptions` directive specifies the behavior of the directory indexing. Option can be one of

AddAltClass
  Adds an additional CSS class declaration to each row of the directory listing table when `IndexOptions HTMLTable` is in effect and an `IndexStyleSheet` is defined. Rather than the standard `even` and `odd` classes that would otherwise be applied to each row of the table, a class of `even-ALT` or `odd-ALT` where ALT is either the standard alt text associated with the file style (eg. snd, txt, img, etc) or the alt text defined by one of the various `AddAlt*` directives.
Charset=character-set
  The `Charset` keyword allows you to specify the character set of the generated page. The default is `UTF-8` on Windows and Mac OS X, and `ISO-8859-1` elsewhere. (It depends on whether the underlying file system uses Unicode filenames or not.)

      IndexOptions Charset=UTF-8

DescriptionWidth=[n | *]
  The `DescriptionWidth` keyword allows you to specify the width of the description column in characters.
`-DescriptionWidth` (or unset) allows `mod_autoindex` to calculate the best width.
  `DescriptionWidth=n` fixes the column width to n bytes wide.
  `DescriptionWidth=*` grows the column to the width necessary to accommodate the longest description string. See the section on `AddDescription` for dangers inherent in truncating descriptions.
FancyIndexing
  This turns on fancy indexing of directories.
FoldersFirst
  If this option is enabled, subdirectory listings will always appear first, followed by normal files in the directory. The listing is basically broken into two components, the files and the subdirectories, and each is sorted separately and then displayed subdirectories-first. For instance, if the sort order is descending by name, and `FoldersFirst` is enabled, subdirectory `Zed` will be listed before subdirectory `Beta`, which will be listed before normal files `Gamma` and `Alpha`. This option only has an effect if `FancyIndexing` is also enabled.
HTMLTable
  This option with `FancyIndexing` constructs a simple table for the fancy directory listing. It is necessary for utf-8 enabled platforms or if file names or description text will alternate between left-to-right and right-to-left reading order.
IconsAreLinks
  This makes the icons part of the anchor for the filename, for fancy indexing.
IconHeight[=pixels]
  Presence of this option, when used with `IconWidth`, will cause the server to include `height` and `width` attributes in the `img` tag for the file icon. This allows browser to precalculate the page layout without having to wait until all the images have been loaded. If no value is given for the option, it defaults to the standard height of the icons supplied with the Apache httpd software. This option only has an effect if `FancyIndexing` is also enabled.
IconWidth[=pixels]
  Presence of this option, when used with `IconHeight`, will cause the server to include `height` and `width` attributes in the `img` tag for the file icon. This allows browser to precalculate the page layout without having to wait until all the images have been loaded. If no value is given for the option, it defaults to the standard width of the icons supplied with the Apache httpd software.
IgnoreCase
  If this option is enabled, names are sorted in a case-insensitive manner. For instance, if the sort order is ascending by name, and `IgnoreCase` is enabled, file Zeta will be listed after file alfa (Note: file GAMMA will always be listed before file gamma).
IgnoreClient
  This option causes `mod_autoindex` to ignore all query variables from the client, including sort order (implies `SuppressColumnSorting`.)
NameWidth=[n | *]
  The `NameWidth` keyword allows you to specify the width of the filename column in bytes. The value must be greater than 5, or `*` for automatic width. If unset or prefixed with `-`, the default of 20 bytes is used.
  When unset, `mod_autoindex` to calculate the best width, but only up to 20 bytes wide.
  `NameWidth=n` fixes the column width to n bytes wide.
  `NameWidth=*` grows the column to the necessary width.
ScanHTMLTitles
  This enables the extraction of the title from HTML documents for fancy indexing. If the file does not have a description given by `AddDescription` then httpd will read the document for the value of the `title` element. This is CPU and disk intensive.
ShowForbidden
  If specified, Apache httpd will show files normally hidden because the subrequest returned `HTTP_UNAUTHORIZED` or `HTTP_FORBIDDEN`
SuppressColumnSorting
  If specified, Apache httpd will not make the column headings in a FancyIndexed directory listing into links for sorting. The default behavior is for them to be links; selecting the column heading will sort the directory listing by the values in that column. However, query string arguments which are appended to the URL will still be honored. That behavior is controlled by `IndexOptions IgnoreClient`.
SuppressDescription
  This will suppress the file description in fancy indexing listings. By default, no file descriptions are defined, and so the use of this option will regain 23 characters of screen space to use for something else. See `AddDescription` for information about setting the file description. See also the `DescriptionWidth` index option to limit the size of the description column. This option only has an effect if `FancyIndexing` is also enabled.
SuppressHTMLPreamble
  If the directory actually contains a file specified by the `HeaderName` directive, the module usually includes the contents of the file after a standard HTML preamble (`<html>`, `<head>`, et cetera). The `SuppressHTMLPreamble` option disables this behavior, causing the module to start the display with the header file contents. The header file must contain appropriate HTML instructions in this case. If there is no header file, the preamble is generated as usual. If you also specify a `ReadmeName`, and if that file exists, The closing </body></html> tags are also omitted from the output, under the assumption that you'll likely put those closing tags in that file.
SuppressIcon
  This will suppress the icon in fancy indexing listings. Combining both `SuppressIcon` and `SuppressRules` yields proper HTML 3.2 output, which by the final specification prohibits `img` and `hr` elements from the `pre` block (used to format FancyIndexed listings.)
SuppressLastModified
  This will suppress the display of the last modification date, in fancy indexing listings. This option only has an effect if `FancyIndexing` is also enabled.
SuppressRules
  This will suppress the horizontal rule lines (`hr` elements) in directory listings. Combining both `SuppressIcon` and `SuppressRules` yields proper HTML 3.2 output, which by the final specification prohibits `img` and `hr` elements from the `pre` block (used to format FancyIndexed listings.) This option only has an effect if `FancyIndexing` is also enabled.
SuppressSize
  This will suppress the file size in fancy indexing listings. This option only has an effect if `FancyIndexing` is also enabled.
TrackModified
  This returns the `Last-Modified` and `ETag` values for the listed directory in the HTTP header. It is only valid if the operating system and file system return appropriate stat() results. Some Unix systems do so, as do OS2's JFS and Win32's NTFS volumes. OS2 and Win32 FAT volumes, for example, do not. Once this feature is enabled, the client or proxy can track changes to the list of files when they perform a `HEAD` request. Note some operating systems correctly track new and removed files, but do not track changes for sizes or dates of the files within the directory. Changes to the size or date stamp of an existing file will not update the `Last-Modified` header on all Unix platforms. If this is a concern, leave this option disabled.
Type=MIME content-type
  The `Type` keyword allows you to specify the MIME content-type of the generated page. The default is text/html.

      IndexOptions Type=text/plain

UseOldDateFormat (Apache HTTP Server 2.4.26 and later)
  The date format used for the `Last Modified` field was inadvertently changed to `"%Y-%m-%d %H:%M"` from `"%d-%b-%Y %H:%M"` in 2.4.0. Setting this option restores the date format from 2.2 and earlier.
VersionSort
  The `VersionSort` keyword causes files containing version numbers to sort in a natural way. Strings are sorted as usual, except that substrings of digits in the name and description are compared according to their numeric value.

  ### Example:

  `foo-1.7
  foo-1.7.2
  foo-1.7.12
  foo-1.8.2
  foo-1.8.2a
  foo-1.12`

  If the number starts with a zero, then it is considered to be a fraction:

  `foo-1.001
  foo-1.002
  foo-1.030
  foo-1.04`

XHTML
  The `XHTML` keyword forces `mod_autoindex` to emit XHTML 1.0 code instead of HTML 3.2. This option only has an effect if `FancyIndexing` is also enabled.
None
  The `None` keyword disables all indexing options for the directory. No fancy indexing features will be enabled.
  `None` cannot be prefixed with `+` or `-`, and it cannot be combined with any other `IndexOptions` keyword. If `None` is specified, it must be the only option given.

Incremental IndexOptions

  Be aware of how multiple `IndexOptions` are handled.

  - Multiple `IndexOptions` directives for a single directory are now merged together. The result of:

        <Directory "/foo">
            IndexOptions HTMLTable
            IndexOptions SuppressColumnsorting
        </Directory>

    will be the equivalent of

        IndexOptions HTMLTable SuppressColumnsorting

  - The addition of the incremental syntax (i.e., prefixing keywords with `+` or `-`).

  Whenever a '+' or '-' prefixed keyword is encountered, it is applied to the current `IndexOptions` settings (which may have been inherited from an upper-level directory). However, whenever an unprefixed keyword is processed, it clears all inherited options and any incremental settings encountered so far, except for options that take a value (`Charset`, `Type`, `DescriptionWidth`, `NameWidth`, `IconWidth`, `IconHeight`), which are inherited independently. Consider the following example:

      IndexOptions +ScanHTMLTitles -IconsAreLinks FancyIndexing
      IndexOptions +SuppressSize

  The net effect is equivalent to `IndexOptions FancyIndexing +SuppressSize`, because the unprefixed `FancyIndexing` discarded the incremental keywords before it, but allowed them to start accumulating again afterward.

  To unconditionally set the `IndexOptions` for a particular directory, clearing the inherited settings, specify keywords without any `+` or `-` prefixes.

  Note that the `+` and `-` prefixes cannot be used with options that take a value, such as `IconWidth`, `IconHeight`, `NameWidth`, or `DescriptionWidth`.

## IndexOrderDefault Directive ¶

Description: | Sets the default ordering of the directory index
Syntax: | `IndexOrderDefault Ascending|Descending Name|Date|Size|Description`
Default: | `IndexOrderDefault Ascending Name`
Context: | server config, virtual host, directory, .htaccess
Override: | Indexes
Status: | Base
Module: | mod_autoindex

The `IndexOrderDefault` directive is used in combination with the `FancyIndexing` index option. By default, fancyindexed directory listings are displayed in ascending order by filename; the `IndexOrderDefault` allows you to change this initial display order.

`IndexOrderDefault` takes two arguments. The first must be either `Ascending` or `Descending`, indicating the direction of the sort. The second argument must be one of the keywords `Name`, `Date`, `Size`, or `Description`, and identifies the primary key. The secondary key is always the ascending filename.

You can, if desired, prevent the client from reordering the list by also adding the `SuppressColumnSorting` index option to remove the sort link from the top of the column, along with the `IgnoreClient` index option to prevent them from manually adding sort options to the query string in order to override your ordering preferences.

## IndexStyleSheet Directive ¶

Description: | Adds a CSS stylesheet to the directory index
Syntax: | `IndexStyleSheet url-path`
Context: | server config, virtual host, directory, .htaccess
Override: | Indexes
Status: | Base
Module: | mod_autoindex

The `IndexStyleSheet` directive sets the name of the file that will be used as the CSS for the index listing.

    IndexStyleSheet "/css/style.css"

Using this directive in conjunction with `IndexOptions HTMLTable` adds a number of CSS classes to the resulting HTML. The entire table is given a CSS id of `indexlist` and the following classes are associated with the various parts of the listing:

Class | Definition
--- | ---
tr.indexhead | Header row of listing
th.indexcolicon and td.indexcolicon | Icon column
th.indexcolname and td.indexcolname | File name column
th.indexcollastmod and td.indexcollastmod | Last modified column
th.indexcolsize and td.indexcolsize | File size column
th.indexcoldesc and td.indexcoldesc | Description column
tr.breakrow | Horizontal rule at the bottom of the table
tr.odd and tr.even | Alternating even and odd rows

## ReadmeName Directive ¶

Description: | Name of the file that will be inserted at the end of the index listing
Syntax: | `ReadmeName filename`
Context: | server config, virtual host, directory, .htaccess
Override: | Indexes
Status: | Base
Module: | mod_autoindex

The `ReadmeName` directive sets the name of the file that will be appended to the end of the index listing. Filename is the name of the file to include, and is taken to be relative to the location being indexed. If Filename begins with a slash, as in example 2, it will be taken to be relative to the `DocumentRoot`.

    # Example 1
    ReadmeName FOOTER.html

    # Example 2
    ReadmeName /include/FOOTER.html

See also `HeaderName`, where this behavior is described in greater detail.

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