How to apply ACL (Access Control List) on files and directories

Hello Friends I m Deepak Saini And today i m trying to explain the ACL (access control list ).

What is ACL ?
 ACL stands for Access Control List) in this we are givin the special permissions to a user on a
 file or directory.We are able to give access to a users group on a file or directory as well as
users. I am explain in this tut.

Lets start

1 Select the file or directory which one you want to give special permissions for a special user.In my case i make a file on desktop for example deepak.txt.

2 1st of all you check the current permissions on that file or acl on that file with the help of this command
   syntax :- #getfacl /root/Desktop/deepak.txt

deepak.txt in my case bro you check whic file you want

3 Then you are ready to apply for acl on your file or directory or file.Then you are set acl with the help of this command
syntax:-#setfacl -m u:username:permissions /root/Desktop/deepak.txt

In this -m for modfiy the permission and u for user and permissions you enter which you want to give the user
like rwx full permissions and other which you want.

How to remove the Acl on a file or Directory

1 If we want to remove the acl on a file then we are able to do this by the help of this command
  syntax :- setfacl -x u:username:  /root/Desktop/deepak.txt 

in this we are leave the permissions field blank .
How to Apply the Acl for Group

1 same as the users just the command is changed
  syntax :- # setfacl -m g:groupname:permissions /root/Desktop/deepak.txt

2 check the acl apllies or not
 syntax :- # getfacl /root/Desktop/deepak.txt

How to remove the group acl 
 Same as the user we are using same command with some changes
syntax:-#setfacl -x g:groupname: /root/Desktop/deepak.txt

thanks for reading and Sorry for my R.I.P english _/\_ 
 

Posted in: Red Hat