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Understanding /etc/shadow

 
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# 1  
Old 12-16-2009
Understanding /etc/shadow
What do the !! signify below in this /etc/shadow entry?

Code:
apache:!!:13713:0:99999:7:::

# 2  
Old 12-16-2009
It means that the password has never been set.

https://www.unix.com/unix-advanced-ex...adow-file.html

6.3.2.2.*/etc/shadow
# 3  
Old 12-16-2009
Difference?
In the manual it says that ! or * do not allow a user to loggin.
Is there a difference between the two though?
# 4  
Old 12-16-2009
From the (second) link:

Quote:
For example, if the value is ! or *, the account is locked and the user is not allowed to log in. If the value is !! a password has never been set before (and the user, not having set a password, will not be able to log in).
! means the account has a null password
* means the account is locked.

How they are described seems to vary. On Solaris, it would be *LK* or NP. On AIX it's a different file completey, but * means no password set.
Last edited by Scott; 12-16-2009 at 01:03 PM..
# 5  
Old 02-24-2010
Bug
Hi,

!! - It represents, password has expired.
 
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