On Tue, May 27, 2003 at 10:04:20PM +1100, [EMAIL PROTECTED] ([EMAIL PROTECTED]) wrote:
> [EMAIL PROTECTED] wrote on 05/27/2003 06:19:13 PM:
>
> >
> > all,
> >
> > when reading the man pages for shadow/passwd/crypt (3,5) you cannot find
> > an explanation of the "!!" in the password field of the shadow file.
> > I know what "*" means, but I cannot find "!!".
> >
> > So, what does it mean?
> >
> >From Shadow man 5.
> If the password field contains some string that is not valid result of
> crypt(3), for instance ! or *, the user will not be able to use a unix
> password to log in, subject to pam(7).
I had trouble finding answers on google until I searched for
"double exclamation shadow passwd" instead "!! shadow passwd" or "\!\! shadow passwd".
I go the answer:
When the asterisk is there, nothing can match it.
An exclamation mark means a password (or account) is locked via
usermod(8). Also, a single exclamation marks means that a account is not
allowed for logins. So a double exclamation makes sure that if it was
unlocked, it would still have an invalid passwd.
They simply mean that no password is available (you can't login remotely
with a password for these accounts).
jobst
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__, Jobst Schmalenbach, [EMAIL PROTECTED], Technical Director
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