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Re: [PLUG] stuied newbie problem...
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On Fri, 16 Jun 2000, ChinFung wrote:
> i tryed to use the "passwd" command to create a no password user. but it
> won't let me, always say" password too short" or something like that. how
> could i do so?
Forgot to say the other part...
My last post was assuming you want to be able to login as this user
without giving a password.
If you want this user to not have a valid password, so that nobody can log
in as it..
if you're not using shadow, edit /etc/passwd. If you're using shadow,
edit /etc/shadow.
delete what's between the 1st & second colon, and replace it with..
something else -- an "x" or a "*" will do.
Before shadow, the encrypted password (looks like random characters) was
put between the 1st & second colons of /etc/passwd.
With shadow, this entry is replaced with an invalid encrypted password
("x" is not the encrypted form of any password), and the encrypted
password data is moved to the /etc/shadow file, which only root, and
members of group "shadow" can read.
This is good, because if someone could get your encrypted passwords, they
could do a brute force attack on them with say, the program "crack", and
find all your bad passwords. crack is a beautiful piece of work.
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