On Thu 30 Sep 2021 at 19:25:09 (+0200), fran...@libero.it wrote: > Try (as root, at CLI) "passwd <username>" > > > I did. It permits to fill only the old password and then it says your > password is changed. But when I reboot I have the same as I told
You're misunderstanding something. As root, you don't need to know the old password to set a new password: # passwd flash New password: Retype new password: passwd: password updated successfully # # passwd New password: Retype new password: passwd: password updated successfully # The passwd man page does have a caveat: "Users may not be able to change their password on a system if NIS is enabled and they are not logged into the NIS server." BTW /etc/passwd no longer contains any passwords as it's world-readable. Cheers, David.