Originally written by
- Historycally, passwords appeared, in encrypted format, in the
- However, since this file is world-readable (i.e. all Users on the system
can and must be able to read it), this allowed various cracking attacks.
- Thus, passwords are now stored in the file "/etc/shadow", and only the
"root" User may read this file.
- A line in this file is split into fields using the ':' character:
- User Name
- Password (in encrypted format).
- Various dates, used for account management.