Contents
What are the owner group and permissions of etc passwd and etc shadow?
Permissions of /etc/shadow The owner of the /etc/shadow file is usually the user root. The group is often set to an administrative group, like shadow. With a tool like passwd, which has a setUID bit, the file can be altered in a controlled way.
What access rights are required for ETC shadow?
The permissions of /etc/shadow are 600, which means it is not readable for anyone except root.
What is in etc shadow?
The /etc/shadow file stores actual password in encrypted format and other passwords related information such as user name, last password change date, password expiration values, etc,. It’s a text file and readable only by the root user and is therefore less of a security risk.
Which type of access is granted to other users for the ETC shadow file?
Which type of access is granted to other users for the /etc/shadow file? Description – All users are granted no access to the /etc/shadow file.
Are there special permissions for the / etc / shadow file?
This file typically has no other special file permissions, like an immutable bit. Like the passwd file, the /etc/shadow file inherits most of the same fields and values:
What do I need to know about / etc / shadow?
There are several different authentication schemes that can be used on Linux systems. The most commonly used and standard scheme is to perform authentication against the /etc/passwd and /etc/shadow files. /etc/shadow is a text file that contains information about the system’s users’ passwords.
How to see the contents of a shadow file?
You can view the contents of the file, with a text editor or a command such as cat: sudo cat /etc/shadow. Typically, the first line describes the root user, followed by the system and normal user accounts. New entries are appended at the end of the file. Each line of the /etc/shadow file contains nine comma-separated fields:
Why is the password stored in / etc / shadow?
An x in place of the password hash field for a user in /etc/passwd is used to indicate that the hash for that user is stored in /etc/shadow instead. Actually, /etc/shadow was created to allow moving away from a publicly readable list of user names and passwords.