ACLs - How can i create new executable files


 
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Operating Systems Linux Red Hat ACLs - How can i create new executable files
# 1  
Old 12-24-2016
RedHat ACLs - How can i create new executable files

Hello experts,

I would like to know if is possible to create a default acl rule to a directory.
in this directory all files created should have executable permissions by the group IT.

i tried setfacl -m d:g:it:rwx /files

tried to change the mask setfacl -m m::rwx /files
but i still can't get the files to be created by the group IT with execution permissions.

only if i apply the acl individual for each file.

I know this is not a good practice to have file with execution permissions by default but i want it for academic purposes.

Thank you.

Last edited by jim mcnamara; 12-24-2016 at 10:30 AM..
# 2  
Old 12-24-2016
Maybe I do not understand - but you seem to want default ACL settings for a directory to propagate to files (not necessarily as they are created I assume).

From
Setting Access ACLs
Quote:
8.2. Setting Access ACLs

There are two types of ACLs: access ACLs and default ACLs. An access ACL is the access control list for a specific file or directory. A default ACL can only be associated with a directory; if a file within the directory does not have an access ACL, it uses the rules of the default ACL for the directory. Default ACLs are optional.
Your files I believe already have ACL's on them. Note the red text above.
# 3  
Old 12-24-2016
RedHat Thx to answer Jim

I know, but i would like that new created files be created with execution permissions.

Code:
touch foo.txt

getfacl foo.txt
group:IT:rwx                #effective:rw-

getfacl /files
group:IT:rwx
default:group:IT:rwx

why i still can't get the files to be created with execution permissions?

Last edited by jim mcnamara; 12-24-2016 at 12:58 PM.. Reason: code tags
# 4  
Old 12-24-2016
Oh. Try this an an experiment to show you what is going on.

What is you umask? Fix it. And are you in the IT group:
Code:
#become root if you are in IT group.
   cd /tmp
   echo 'echo "test"' >/tmp/t.shl
  # -- you now have a file that needs execute to run.
  chmod 660 t.shl
  # -- be sure it does not have x
 chgrp IT t.shl
# make SURE there are no ACLs on the file.
 getfacl t.shl
 cp t.shl /files
# check ACLs on the file.
 getfacl /files/t.shl  
 /files.t.shl
# does it run?

If this fails please show everything you did. It should be okay i.e., does it run? Answer:yes

You can have no ACL on the file before you place it in the /files directory. So this means you have to make sure IT group users - programmers I guess - understand. They can mess it up.
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