Passwd
From Attie's Wiki
/etc/shadow
This file contains the password information for users.
Ubuntu's default root entry:
root:*:15386:0:99999:7:::
Format:
| username | upto 8 characters. a direct match to a line in /etc/passwd
|
| password | blank indicates no password required. '*' indicates that the user has been disabled (may still su to that user though)
|
| change date | the number of days since 1 Jan 1970 |
| change delay | the number of days before the password may be changed. 0 indicates any time |
| password expiry | the number of days before the user MUST change the password. 99999 indicates a long time |
| number of days warning | before the user will be forced to change their password |
| number of days before disable | after the password has epired. I assume blank is never |
| expiry date | number of days since 1 Jan 1970 that the account was disabled |
| reserved | - |
