An access control list (ACL) is a list attached to a file or other resource, specifying what may be done with it and who may do it.

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ACL permission defaults are not applying to new files

I am trying to set up ACL's so that all new sub-directories and files withing a directory automatically inherit it's parents permissions. From what I understand I could achieve this by setting the ...
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How to allow a group to write in a Trusty ext4 tree, an other to read only, others no access at all, and acl automatic inheritance?

Trying to reach this simple goal for monthes with the help of sudo chgrp -R writers /srv/dir, sudo chmod -R g=srwX /srv/dir and the underlying default umask 0002, then sudo setfacl -Rd --set ...
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27 views

ext4 ACL support in Trusty

Having problems with ACL in Trusty desktop version, I want to know if the ,acl mount option is really mandatory for an ext4 partition? This because with or without this option, setfacl never complains ...
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165 views

Hidden Permissions - Zentyal Admins can't access User's Created Folders

I am the co-administrator of a small private school's domain system. I set the system up using Zentyal 3.4 of which Windows and Ubuntu clients both connect. Students have their own personal logins ...
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31 views

exercise on ACL from computer security course

You found this file lying on a system: [user@localhost]$ ls -la executable -rwsr-xr-x 1 foo group 41836 2012-10-14 19:19 dangerous.exe Do you notice anything wrong?
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32 views

Want to setup acl but my /etc/fstab does not look like the docs

I am trying to install an ACL on an ubuntu 14 box. My /etc/fstab file does not look exactly like the docs and I would like some advice on how to proceed. here is my config. $ cat /etc/fstab # ...
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602 views

Set permissions for future folders and files

I have some trouble managing permits in a folder and relative sub folders. I am working on ubuntu 14.04. I have a software which periodically creates new folders and files inside of a main folder. ...
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115 views

Restrict user access to /proc and /sys

I have one big problem: setfacl does not seem to work for /proc and /sys, but I would like to restrict one specific users rights and I do not find it acceptable for that user to read stuff like ...
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491 views

Grant permission for new created files inside folder automatically

I have a folder which permission is set to 777 but when I add any files or folder unziping in that folder. Extracted files or folder permission never change . For a clear picture: -> Distination ...
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301 views

Add all new users and guest user to a group dynamically on ubuntu 14.04

I would like to add all the users (current, new, guest) to a particular group, lets say "audio" dynamically. Can you tell me how I can accomplish this ?
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49 views

Confused Deputy Problem [closed]

Why are capabilities sufficient to solve the confused deputy problem while ACLs are not? After some research, the extent of my understanding is as follows: ACLs can be changed by users with proper ...
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36 views

how to limit resources to a shared ubuntu 10.04

The title might not be explanatory enough but I couldn't find any better way to formulate it. I will be running a server for office use. It will host applications on tomcat. 2 differents people would ...
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507 views

Please settle a Sticky (bit) argument

I got into a good-natured spat with a fellow worker about the nature of the sticky bit. My contention, working from the chmod man page was the the sticky bit, if set, allows only the owner to delete ...
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71 views

Setfecl: Option -m incomplete, why?

My commands: sudo setfacl -R -m u:www-data:rwX -m u:`whoami`:rwX app/cache app/logs sudo setfacl -dR -m u:www-data:rwx -m u:`whoami`:rwx app/cache app/logs It returns: setfecl: Option -m ...
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1answer
864 views

Activate ACL for zfs pool ubuntu 13.04

i have tested ACL on local folders and i works perfect. But on my zfs pool called "tank" root@datacenter:/mnt# ls datatank test webmin_1.650_all.deb root@datacenter:/mnt# setfacl -m u:casper:rwx ...
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217 views

A user keeps giving the wrong group permissions on new files

I have a number of services on an Ubuntu 12.04 server and I'm making each of them run under their own user account instead of running under my account (for improved security as well as seeing which ...
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1k views

How to change NTFS ACLs on linux?

It is not about samba configuration, I want to change Windows permissions on a external NTFS drive, or another partition in my PC whose runs Windows, or even a network directory (but my PC is not the ...
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111 views

Does enabling ACLs have an effect on performance?

I'm looking at a web application that needs ACLs enabled. Are there any benchmarks or other documents to show what potential impact ACL does{n't} have when the file system is under heavy load? Also, ...
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1k views

Can't access other drives

My 500 gb hard drive with windows 7 has recently crashed with all my personal files on it. I have called HP and have a new hdd in the mail but I am unable to remove old files from the old hdd. I am ...
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3answers
4k views

Set umask, set permissions, and set ACL, but SAMBA isn't using those?

I'm running on Ubuntu Server 12.04. I have a folder called Music and I want the default folder permissions to be 775 and the default file to then be 664. I set the default permissions on the Music ...
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8answers
15k views

Can't mount any partitions - ACL error

I've install Ubuntu 12.10 and now I can't mount any partitions. I get the same error with drives: Adding read ACL for uid 1000 to /media/proach failed: Operation not supported