FollowSymLinks 选项被启用，它允许 Apache 查看之前的符号连接来为请求提供服务，即便文件位于包含 Web 文件的目录之外。

The FollowSymLinks option is enabled, which lets Apache look past symlinks to serve the request, even if the file is outside the directory containing Web files.

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另外一个称为FollowSymLinksIfOwnerMatch的选项会在文件所有者与连接所有者相同时使用符号连接。

A companion option called FollowSymLinksIfOwnerMatch follows the symbolic link if the owner of the file is the same as that of the link.

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如果禁用了FollowSymLinks, Apache就必须检查使用该文件名的所有组件(目录和文件本身)，以确保它们不是符号连接。

If FollowSymLinks is disabled, then Apache must check each component of the filename (directories and the file itself) to make sure they're not symbolic links.

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