Read man sshd_config for more details, but you can use the AllowUsers directive in /etc/ssh/sshd_config to limit the set of users who can login. e.g. AllowUsers boris would mean that only the boris user could login via ssh.
● Do you really want to allow logins without a password? If so, try passwd -d root (see warnings below) ● Do you really want to have an empty password? echo root: | chpasswd or, if that is rejected, echo “root:$(mkpasswd -s </dev/null)” | chpasswd -e (see warnings below) ● For those coming here in … Read more
PASSWORD=$(zenity –password –title=”Docker” 2>/dev/null) will open a popup, asking for password, and return it. No password stored in the script If you have a docker container where you need to set a password, without caring to much about security, you could add a statement in the Dockerfile: RUN echo “root:root” | chpasswd
You could also use chpasswd: echo username:new_password | chpasswd so, you change password for user username to new_password.
This is because DES-based crypt (AKA ‘descrypt’) truncates passwords at 8 bytes, and only checks the first 8 for the purpose of password verification. That’s the answer to your direct question, but here’s some general advice implied by your context: Fortunately, from my reading, MD5 in /etc/login.defs is actually md5crypt ($1$), which, while a little … Read more
Start with /etc/passwd – user account information less the encrypted passwords /etc/shadow – contains encrypted passwords /etc/group – user group information /etc/gshadow – – group encrypted passwords Be sure to ensure that the permissions on the files are correct too