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The Options directive controls which server features are available in a particular directory.
option can be set to None, in which case none of the extra features are enabled, or one or more of the following:
All
All options except for MultiViews. This is the default setting.
ExecCGI
Execution of CGI scripts is permitted.
FollowSymLinks
The server will follow symbolic links in this directory.
Note: even though the server follows the symlink it does not change the pathname used to match against <Directory> sections.
Note: this option gets ignored if set inside a <Location> section.
Includes
Server-side includes are permitted.
IncludesNOEXEC
Server-side includes are permitted, but the #exec command and #include of CGI scripts are disabled.
Indexes
If a URL which maps to a directory is requested, and the there is no DirectoryIndex (e.g., index.html) in that directory, then the server will return a formatted listing of the directory.
MultiViews
Content negotiated MultiViews are allowed.
SymLinksIfOwnerMatch
The server will only follow symbolic links for which the target file or directory is owned by the same user id as the link.
Note: this option gets ignored if set inside a <Location> section.
Normally, if multiple Options could apply to a directory, then the most specific one is taken complete; the options are not merged. However if all the options on the Options directive are preceded by a + or - symbol, the options are merged. Any options preceded by a + are added to the options currently in force, and any options preceded by a - are removed from the options currently in force.
For example, without any + and - symbols:
<Directory /web/docs>
Options Indexes FollowSymLinks
</Directory>
<Directory /web/docs/spec>
Options Includes
</Directory>
then only Includes will be set for the /web/docs/spec directory. However if the second Options directive uses the + and - symbols:
<Directory /web/docs>
Options Indexes FollowSymLinks
</Directory>
<Directory /web/docs/spec>
Options +Includes -Indexes
</Directory>
then the options FollowSymLinks and Includes are set for the /web/docs/spec directory.
Note: Using -IncludesNOEXEC or -Includes disables server-side includes completely regardless of the previous setting.
The default in the absence of any other settings is All.