Most current file systems have methods of administering permissions or access rights to specific users and groups of users. These systems control the ability of the users to view or make changes to the contents of the filesystem.

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17 views

Why does ping require the setuid bit?

In the Jessie version for the Raspberry Pi, ping requires the setuid bit to be set. What is the rationale for this?
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18 views

Is it safe to chmod 777 everything?

I'm having trouble pulling the whole file directory from a rooted android device with ADB. There are special permissions errors. So I thought a solution would be to chmod everything so the ADB daemon ...
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1answer
15 views

Linux ACL for students test submission, Create, Append, Delete but not Read for others

There should be a TO Folder on a Samba-Share, where everybody is allowed to create files, edit and delete them. But one user should not be allowed to read the files others have created. The main idea ...
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34 views

Is there a way to make a sd card WRITE/READ only - DISABLE ERASING

I'm a noob trying to find a solution to make a sd card write/read only? Like creating files is possible but to erase something you have to format the whole card. In terms of erasing you only can ...
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1answer
20 views

What is the effect of denying Full Control?

If I add a Deny entry on Full Control for a group, what will happen to a share's permissions? Will the group still be able to read?
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1answer
21 views

How to change ownership of files when dropped into folders

I need some help configuring default folder permissions on a 100TB vol that has 900+ user dirs on it. Each user has a hard quota limit of 25GB. All user dir perms are set to 755, so every user can ...
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19 views

Windows 10 Automatically Reset Folder Ownership

I have this problem with windows 10 that automatically resets its folder ownership to administrator which previously I have set as me. The folder is the AppData in user folder. What this problem ...
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0answers
28 views

OSX: Prevent Deletion but Allow Writing?

I work at a Media Production company in England, and we recently had a little issue whereby somebody accidentally deleted a folder they were accessing -- on a hard drive connected to a different ...
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1answer
9 views

Apache AH00035 error until I log in via SSH

I'm having a problem configuring Apache (2.4.7) on Ubuntu (14.04.1 - fully patched as of an hour ago) with the userdir mod. I keep getting the following error when attempting to access my userdir ...
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0answers
29 views

Can't Remove Folder with Powershell But Can with Command Prompt

I'm trying to delete a folder in an install script using PowerShell. The script copies a bunch of files to a distribution folder (using RoboCopy) and then cleans up superfluous files and folders. I ...
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0answers
48 views

Ansible: How to recursively set directory and file permissions

In ansible, I can do this: file: dest=/foo/bar/somedir owner=root group=apache mode=0775 recurse=yes And it recursively sets the owner, group, and permissions to 0775 on all directories and files ...
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1answer
108 views

Delete /usr/bin/emacs - Operation not permitted

I was about to reinstall Emacs from railwaycat/emacsmacport when I stumbled upon /usr/bin/emacs, /usr/bin/emacsclient and /usr/bin/emacs-undumped. angrybacon@sandman ~/ $ ll /usr/bin/emacs* ...
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1answer
46 views

How to set 644 file permissions for newly created files and 755 for newly created directories?

I have an e-commerce site in Magento. When I upload a file using the administrator, the folder is created with 770 permissions, and the actual file is also created with 770 permissions. Cause of ...
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14 views

adding/editing data inside a hidden NTFS partition

I have a bootable USB stick that we use for imaging machines. Which has 2 Partitions in it. Bootable MS-DOS (FAT 32) - Can edit etc NTFS - Can't touch, can only read The problem I have is that I ...
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0answers
17 views

Windows shared folders - Limiting what users can see through shortcuts

I have over 100 file share mappings and some users have around 10 drives mapped to their computer. To limit this we created a network drive that has all the mappings in a one folder and created ...
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1answer
18 views

create/modify file content permission without delete/rename permission?

Is it possible to allow users to: create a txt file modify the content of the txt file but disallow: rename/delete this txt file?
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57 views

Windows 10 file permission Issue

PROBLEM – I cannot open practically any file/application without receiving the error "windows cannot access the specified device path or file. you may not have the appropriate permissions to access ...
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0answers
34 views

win10x64 - access denied removing file? unable to resolve [duplicate]

I looked through - Can't delete folder and I am admin. "You need permission to perform this action. You require permission from..." but can't update that as i'm a newbie here. tried a ...
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1answer
33 views

System owns this folder

Occasionally I get messages telling me I can't access, modify or delete specific files and folders, even when I am an admin. For example the windows.old folder because system owns it. I am on Windows ...
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1answer
53 views

Unable to write to file, even with right write access

File permissions are -rw-rw---a, and here are the security permissions: I am the user (name completely blacked out). Why do I still get this error:
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1answer
41 views

SUID bit on directories

In Linux there are SUID, SGID, and sticky bits for directory permission. So I am absolutely clear about the sticky and SGID bit on files or folders. What happens if I apply SUID bit on a directory? ...
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1answer
26 views

Disabling full control over a file for one of administrators in Win7

There are two user accounts on Win7 and both with the Administrator type. Is there some way to disable full control over some file for the second administrator and leave him just the Read & ...
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0answers
26 views

How do you set Linux ACL to default to a specific group with permissions?

So I have a directory: www\ which looks as so: [eugene@server ~]$ ll total 0 drwxrwx---. 2 eugene eugene 57 Dec 10 16:04 www I want to make it so all new files created in this directory will ...
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1answer
40 views

Can't remove read only attribute

I have windows 7 and I've installed Oracle and my directory C:\app\jankiewj\product is read only. When I try to remove read only checkbox it ask me for admin permission. I've try to run explorer as ...
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2answers
88 views

Is it possible to create a User account that has access to a share, but won't show up on the Login screen?

My two roommates and I all have Windows 7. I've shared two folders on one of my drives, I want to have Read-Write from my actual Admin account but I'd like for them to only have Read access. I set up ...
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22 views

Permissions are not set for some folders in linux

I ran this command in my CentOS 6 server. I am logged in as root: find public_html \ > \( -type f -exec chmod ug+rw,o+r {} \; \) , \ > \( -type d -exec chmod ug+rwxs,o+rx {} \; \) It works, ...
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2answers
54 views

Simulate creating and writing a read only file

I am trying to debug a permission issue in quite a complex hierarchy of mounted and shared volumes. The operation that fails is captured in the following strace output: ...
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7answers
161 views

How do I add permission to read on a drive

I have badly messed up my hard drive permissions. I was trying to deny guest accounts from accessing one of my logical partitions. While disabling the read, write permissions I have disabled read ...
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29 views

Killed server with chmod -R u+rwX,go+rX,go-w /

So I was trying to give files in /var/www/html/ 644 (rw-r--r--) permissions and killed the server: chmod -R u+rwX,go+rX,go-w / That changed permissions on all files it could on the entire server as ...
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3answers
93 views

How to prevent other users, including root, from executing a given program?

In a Linux system such as Debian, how do I prevent an installed application from being used by other users, unless they enter a password? Other types of authentication tokens are acceptable, too. I ...
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2answers
46 views

How to clone Windows on filelevel

I've an old laptop (WinXP) which I wanted to clone via Linux's dd (Ubuntu live CD) onto a second HDD. Unfortunately dd fails due to read I/O errors. The Windows Installation itself is still able to ...
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1answer
14 views

Permissions in Samba

I am facing this problem. I am running a samba server for some windows clients. I have 100 users in this samba share and all of them are belong to the primary group "smbusers". Now, I created an excel ...
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1answer
103 views

How do I specify chmod 744 in Powershell?

I know that I can use icacls to specify the permission on the file, and from What is the equivalent of chmod 777?, I can use icacls myfile.txt /grant Everyone:F But how do I set an equivalent for ...
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37 views

How can I wrap a sensible text file with a Bash script that allows every user to grep for $USER?

So I have a file data.txt that stores user name and some piece of data, one line per user. I'd like to have a Bash script that is runable by the users and allows them to call grep -w "^$USER" ...
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15 views

How to customize directory permission for users from FTP

I have a directory like this home +-- dirA +-- dirB | +-- fileA | +-- fileB and multiple users and groups. groupA has user1, user2, groupB has user3 I have set up permissions like these: ...
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310 views

windows 10 hyper-v Cannot delete vhdx after removing VM

Say, I created a Virtual Machine with Hyper-V on my Windows 10 machine: New-VM -Name Test -NewVHDPath xxx\Test.vhdx -NewVHDSizeBytes YY Where xxx is a valid full path and YY is a valid size. ...
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29 views

Grant permanent admin access without change entire account policy

How do I grant permanent administrator access to a .exe so I don't have to do it myself every time I run it? I don't want to change the setting of account control to "never notify". Actually I ...
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0answers
18 views

OS X Gatekeeper bypassed when application is owned by root

I understood that the purpose of OS X Gatekeeper was to block software without proper code signing. However, changing applications to be owned by root overrides this behavior. Enable Gatekeeper and ...
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1answer
22 views

How to mount an ext4 filesystem with specific permissions?

I want to mount /home such that any user can read and write to his/her own directory but only a certain user has execute permission. We have a queue system (torque) and I want users not to be able to ...
1
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1answer
40 views

Setting correct permissions after Windows reinstall

I have had to reinstall Windows on my laptop, I installed Windows without formatting because I had my data files and folder on there including on the root folder for example C:\my_projects etc Now as ...
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1answer
39 views

Preventing linux users setting a wrong ownership for files

I have updated the ownership instead of changing the file permission. I should have used chmod 777 <filename> but used chown 777 <filename>. Example: [john@sv1:/tmp]$ touch ...
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0answers
24 views

write to root wheel directory

I might be missing something, but I have a directory root:wheel (755), and when I do a sudo touch a it says touch: a: Operation not permitted Doesn't sudo give me full access regardless of who ...
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0answers
26 views

linux user cant access file that he is a part of

I have created a group called mrp and assigned the normal user and the root and then assigned it to the file: chgrp mrp /usr/bin/mplayer chown root:mrp /usr/bin/mplayer But, once I login as normal ...
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2answers
2k views

How much can we rely on filesystem permissions for security?

My question is about filesystem permissions (specifically the Unix style permissions) and how they relate to security. Say I have access to a computer with a guest user account and a user named Bob. ...
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1answer
64 views

Configure temp directory to prevent making files executable

Ubuntu 14.04: How I should set permissions on the temp directory so created files can't be made executable? Of course, any user should be free to create directories and files and delete his own ones.
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0answers
176 views

User accounts on the machine can't share files or folders in Windows 10

I have installed Windows 10 on a Windows 7 laptop. There are two user accounts on this machine and they both need to access certain folders, but no matter what how I try to share those folders, ...
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0answers
22 views

Removing an ACE permission from C:\Users\Bob tries to propagate

When I remove an ACE from an ACL in Windows 7, I didn't expect the permission change to try and propagate, but it does so and throws up a myriad of errors. This is what I did: I shared out (Simple ...
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2answers
74 views

Does system restore restores security permissions?

I wanted to change the security permissions of some folder, but I targeted my root D drive instead. I cancelled half way, but still; the majority of the files is affected and I want to revert my ...
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0answers
24 views

Security consequences of assigning executable permission to all /home data files?

I'm administrating tiny server for me and few friends / family / people I know more or less, basically nothing super busy, <10 users but I'm still trying to set it up like real, commercial server ...
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786 views

How to reset folder ownership in Windows 10

Having had trouble writing to a root directory as a particular user, I opted to change the directory ownership to that particular user on Windows 10 under; Folder Properties / Security / Advanced ...