Linux - SecurityThis forum is for all security related questions.
Questions, tips, system compromises, firewalls, etc. are all included here.
Notices
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Get a virtual cloud desktop with the Linux distro that you want in less than five minutes with Shells! With over 10 pre-installed distros to choose from, the worry-free installation life is here! Whether you are a digital nomad or just looking for flexibility, Shells can put your Linux machine on the device that you want to use.
Exclusive for LQ members, get up to 45% off per month. Click here for more info.
finally done it, it was misunderstanding .. here is what i did:
NOTE) if you are root and create the password for that user, then you can make it anything you want (regardless of the cracklib settings). You'll still see the hard-coded "password too short" message if you use a short password, but it will still let you use it. You won't even see the cracklib warnings like "too simple" at all. However, if you log in as that user and try to change the passwd, all the cracklib requirements will apply.
md5 : Encrypt new passwords with the MD5 algorithm.
nullok : Allow users to access services even if their password is blank.
nullok_secure :Idem, as long as PAM_TTY equals one of the values found in/etc/securetty.
obscure : Enable some extra checks on password strength.
ucredit: Uppercase
dcredit: digit
ocredit:Non-alphanumeric
difok: the minimum number of characters that must be different from the previous password.
lcredit:lowercase
LinuxQuestions.org is looking for people interested in writing
Editorials, Articles, Reviews, and more. If you'd like to contribute
content, let us know.