passwd command is used to change password and provides information about Linux accounts. Normal or root user can change passwords. Normal user can only change his own password in the other hand root can change all users passwords....
Linux shadow password suite provides password related utils and configuration. /etc/login.defs or simple login.defs provides configuration about shadow utils. This file provides password, mail, user id, group id, user home related configuration. We will look all of...
Linux provides usermod command by default for the most of the distributions. This command is used to user modification. After user creation the user related information, values and policies can be changed with usermod command. In...
Password security is important subject in IT. We call it password but actually it is a key to enter systems. Making authentication password-less by using key-based authentication is more secure but it is not always...
The problem is we want to change the already created user name or user id. As we know there is a lot of configuration those rely on the user id like permissions. We will use...
Linux passwords are used to authenticate users. Linux passwords was hold in /etc/passwd file with other user related information like default shell, home directory path etc. Now in modern Linux distributions holds passwords in /etc/shadow...
How can I disable some Linux account? By disabling it I do not want to remove the account and related files. Just user related operations will be prevented. If an user authentication occurs it will...
