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 | ACL or Access-Control-List
One ACL isn't plenty More as a a Zuordnung of Zugriffsrechten and groups or Usernamen bestehende list.
One ACL exists a 8-byte great ACL-Header, the indicated to Size and manner the ACL's contains and the actual Einträgen, whom ACE's.
The construction one ACL-Headers:
| byte | Statement
| | 0 | manner the ACL's (1,2,3 or 4). standard ACL's are to Time ACL's the Type 2
| | 1 | Nullbyte, serves to that top up on 16bit.
| | 2-3 | Size the ACL's in byte (= ACL-Header + any ACE's)
| | 4-5 | Number of encompassed ACE's
| | 6-7 | two Nullbyte to that accommodate to 32bit | |
there's two different Types of ACL's:
- DACL's lay Zugriffsrechte solid and permit or prohibit Zugriffe on one Objekt (z.B. a File)
- SACL's to supervise Zugriffe on one Objekt and draw fehlgeschlagene or erfolgreiche Zugriffe on one Objekt
only NT based Windowssysteme kennen ACL's.
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