e recently switched from Windows server operating system to Ubuntu Linux operating system at work. I am a developer by profession and do not know much about Linux. I need to change the sftp/ssh user account password on Ubuntu. How do I change a user password in Ubuntu Linux?
ow do I change root user or any other user account password under OpenBSD operating systems?
How do I change user password using a shell script under FreeBSD operating systems?
I use sudo to provide permissions and command execution rights to other users under UNIX and Linux operating systems. However, I noticed something strange about sudo. When executing sudo, it will prompt for the user’s password the first time, but sudo no longer requires a password anymore when re-executing it. Why? Is this is a security risk?
an you explain /etc/passwd
file format for Linux and Unix-like operating systems?
an you tell me command to change a password in Unix? How do I change a password in Unix operating system like macOS desktop or FreeBSD Unix server using the command line?