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Old 06-22-2010, 03:47 AM   #1
Registered: Jan 2008
Location: Brighton, UK
Distribution: Ubuntu 18.04 / CentOS 7.6
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Access Control Lists - mask?


I am learning how to use ACLs and I mostly get it aside from one thing.

# setfacl -m user:jon:r-x /home/testuser1
# setfacl -m mask:r-x /home/testuser1

# setfacl -m user:jon:r-- /home/testuser1/project.txt
# setfacl -m mask:r-x /home/testuser1/project.txt
The above sets read/execute access to testuser1's home directory and read access to the project.txt file for the user jon. This, I understand. What's the "mask" entry all about? Can someone explain that?
Old 06-22-2010, 04:01 AM   #2
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Registered: Apr 2010
Location: India
Distribution: CentOS,Redhat,Ubuntu,Solaris
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the 'mask' refered here is nothing but the umask.
see the url


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