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re: Understanding Linux Permissions VIEW POST

FULL DISCUSSION
 

If you really want to get into powerful permissioning systems, take a look at extended filesystem access control lists (via the setfacl and getfacl utilities), extended attributes (xattrs managed via the chattr and lsattr commands) and, the ultimate cause of headaches, SELinux.

If you're running an Internet-facing system, these are all security-extensions that you want to be reasonably well versed in.

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