ACL

ACL (ACCESS CONTORL LIST)

• Create a three users.
• Create a /data directories.
• Create a file under /data ( file,file1,file2…etc.)

# getfacl /data ( to check a permission of /data directoris)

# setfacl -m u:mms:x /data

(note: m =stands for modified, u=username)

ls –ld /data ( here showing + sign , it’s means acl permission is set to /data)

# setfacl -m u:student:- /data ( set 0 or null to student user, it means there is not an any permission to user (wrx) ).

#setfacl –m d:u:mansi:wrx /data

(permission set by recursively to the file not to the mansi user)

# setfacl –m u:mansi:wrx file

(to set acl permission to the file)

How to remove ACL permission

# setfacl -x u:student /data

#setfacl –x u:mms /data

#setfacl -x u:mansi /data

(ACL permission removing)

# getfacl /data (to check permission)

# setfacl –k /data (to remove defaults permission)

#setfacl –b /data (to remove binary level permission)