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Below you can find some (older) IT and Security-related remarks, tips & tricks:

Setting password length on Ubuntu 16.04 LTS

Details
Parent Category: Linux
Category: Ubuntu

In order to change the default password length (and or complexity) on an Ubuntu 16.04 LTS install do the following:

  1. open the terminal
  2. go to /etc/pam.d
  3. there should be a file named common_password - open it (by using sudo!)
  4. find the line under the comment "# here are the per-package modules (the "Primary" block)"
  5. to disable complexity, delete "obscure" (more details here) and to set password length add minlen=N (where "N" is the desired number of password characters) - in the end the line should look like this: password [success=1 default=ignore] pam_unix.so minlen=1 sha512
  6. save and close the file

 

(All the above is valid for standard, non-modified / default installations of the latter)