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XCCDF
Guide to the Secure Configuration of Alibaba Cloud Linux 3
System Settings
Account and Access Control
Secure Session Configuration Files for Login Accounts
Ensure that Users Have Sensible Umask Values
Ensure that Users Have Sensible Umask Values
An XCCDF Group - A logical subset of the XCCDF Benchmark
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Ensure that Users Have Sensible Umask Values
The umask setting controls the default permissions for the creation of new files. With a default
umask
setting of 077, files and directories created by users will not be readable by any other user on the system. Users who wish to make specific files group- or world-readable can accomplish this by using the chmod command. Additionally, users can make all their files readable to their group by default by setting a
umask
of 027 in their shell configuration files. If default per-user groups exist (that is, if every user has a default group whose name is the same as that user's username and whose only member is the user), then it may even be safe for users to select a
umask
of 007, making it very easy to intentionally share files with groups of which the user is a member.
Sensible umask
Enter default user umask