LPI certification 101 exam prep, Part 3
# chown root.wheel /etc/passwd. You may not use chown unless you are the superuser, but chgrp can be used by anyone to change the group ownership of a file to a group to which they belong.
User account information: /etc/passwd. 1. Username: used when user logs in Files, directories, memory devices, I/O devices etc. are uniformly treated as resources subject to access control.
User Authentication HOWTO | 2.1. /etc/passwd
The /etc/passwd file, which contains information about all users, including their encrypted password, is readable by all users, making it possible for any user to get the encrypted password of everyone on...