The ACL is a security and access component of Operating Systems. It contains a set of entries that determine who and what has access to a specified physical or logical system object.

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Windows with Full Control to Everyone for Everything

Similar to sudo chmod -R 777 /, but for Windows 7. A customer decided he hated the prompts for administrators to continue, so he gave himself Full Control for the Everyone group on Windows 7. Now, ...
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Why are file permissions retained when moving files within the same volume?

Ocassionally, we have the problem that a file has permissions different from the folder where it's in. Now I found out that there's a KB article explaining the reason behind this: By default, an ...
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How can I list permissions of every component in a file path?

Sometimes it is necessary to determine on which directory in a path access rights are limited. Here is an example: $ ls /sys/kernel/debug/usb/devices ls: cannot access /sys/kernel/debug/usb/devices: ...
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Windows: How do I remove a file's ACL, and just let it inherit the ACL on the containing directory?

Scenario: I unpack a file into a temp directory. Then I movve the file into a different directory. I want the file ACL to only include the perms stipulated in the new containing directory. How ...
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Linux File Permissions & Access Control Query

Let's say I am user bob in group users. There's this file: -rw----r-- 1 root users 4 May 8 22:34 testfile First question: Why can't bob read the file as it's readable by others? Is it simply ...
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What does the + mean in the ACL output of “ls -l”?

ls -l -rwxr-xr-x 1 root root 885 2010-07-08 13:55 /etc/backup-number-of-files* -rwxrwxr-x+ 1 levchuk Users 1067 2010-08-30 14:37 /etc/backup-running-time* Please notice the + on the 2nd ...
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Leave ACL handling to Windows with Cygwin rsync

I'm running an rsync command, copying my files from a server to my Windows machine like: rsync -rt --partial-dir=".rsync" --del rsync://server/a/ a/ Whenever this command creates a directory, it ...
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Dump/show ACL in GNU screen

I'm trying to make an interface to make it easier to set ACL in screen. Setting ACL is quite easy, however, I can't find a way to show or dump the existing ACL. A look in the archives of this list ...
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Hard drive access denied from Windows Explorer (but works from command prompt as Admin)

When I try to access a hard drive from Windows Explorer (in Windows 7), I keep getting this error: E:\ is not accessible. Access is denied. I am logged in under an admin account. Oddly, when I ...
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How to setup nfs share for users with write permissions

We used ubuntu linux on desktops with ldap authentication. Both on server and clients we have identical users and groups. I've setup nfs server with public share, which should be available for all ...
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Squid is ignoring my ACL

Second try: I configured Firefox to use the proxy IP and port, and it worked, so my hypothesis is correct: for some reason, the machine where Squid is running don't send to it the incoming petitions. ...
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Is it possible to set ACLs on a sysfs mount point?

I'd like to add the write access on /sys/power/state to my UID via ACLs, this way I'd don't need to use sudo or any setuid program to make my workstation go on sleepmode, is that possible ? I tried, ...
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Prevent copying from specific network locations [duplicate]

A tad unusual question! I need to prevent users from copying (via Ctrl+C / Ctrl+V, Drag+Drop, Edit>Copy / Edit>Paste) from a folder on the local machine. I won't go into details of why, as it's ...