Debian: Force users to use more secure login password with pam_cracklib

One of the factor that makes your system easily crackable is the weak password. PAM cracklib forces users to choose stronger password by analyzing the password strength, length and entropy.

To enable pam_cracklib in Debian / Ubuntu operating system, you need to install libpam_cracklib:

sudo apt-get install libpam_cracklib

Then edit the “/etc/pam.d/common-password” file using your favorite editor. Then, add and uncomment the following line at the end of the file.

password required retry=3 minlen=6 difok=3

difok determines the number of same characters that allowed to be present in the old and new passwords.

3 Replies to “Debian: Force users to use more secure login password with pam_cracklib”

  1. I i just want to leave a simple comment to talk about your blog site was wonderful. I ran across it on yahoo lookup after experiencing lots of other information that was not likely related. I think I might come across this much earlier thinking about how good the information is.

Comments are closed.