Group items tagged

with variations

Windows, Linux, Solaris, MacOSX

On Linux, specifically, four categories of extended attributes have been defined

user : to record properties defined by applications

names of the extended attributes must be prefixed

Examples of extended attribute names

stable ntfs-3g supports the user name space

some Linux distributions do not support the extended attribute interface

commands for getting or setting the extended attributes are system dependent

extended attributes in user name space are stored on NTFS as alternative data streams

The following sections describe how to access a few NTFS internal data as extended attributes

NTFS Attributes

miscellaneous flags associated with a file or directory

Only eight flags can be changed

NTFS use reparse data to define special actions before opening

reparse data of a file or directory is mapped to an extended attribute

translated into ownership, permissions and Posix ACLs parameters

NTFS ACLs are used to control access

NTFS ACL of a file or directory is mapped to an extended attribute

EFS is the methodology used in NTFS to deal with encrypted files

decryption information, the EFS Info, which contains the key, encrypted

decryption information is mapped to an extended attribute

encryption and compression are not compatible