Short for "file system permissions" - access control based on user, group, or global access.

learn more… | top users | synonyms (2)

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Setting Permissions - Best Practices?

I have read through the permissions tutorial on ubuntu.com and still have a few questions. i really dont understand the "group" part of the permission, what group, and how do i change the group as ...
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1answer
476 views

How should I Change Permissions (Dirs & Files) recursively in an mp3 external hard drive?

this is not that simple as it sound, so please read carefully before answer (I really tried before writing this). So, the problem is the following. I have an external hard drive, NTFS of 2TB. It is ...
2
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1answer
931 views

Configure owner and permissions for upstart log files

When logging an upstart job with the standard console log stanza, can the resulting log files in /var/log/upstart be configured to be written with a mode or owner other than the default?
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1k views

ubuntu 13.04 failed to start any GUI application as root

I just installed ubuntu 13.04 in family machine, and I faced strange problem even though my sudo password is correct, I cannot start any GUI application (i.e. bleachBit (as root)) as a root, the ...
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2answers
7k views

Ubuntu sudo not working

I wanted to move a file to a /usr/python2.7/ but i was unable to do so, so i changed the permissions of /usr to myuser: sudo chown -R ***** /usr it worked but i realised it was a blunder when sudo ...
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1answer
834 views

Accidentally ran “sudo chmod a+rx ~”

I accidentally ran sudo chmod a+rx ~ on the system root rather than sudo chmod a+rx myfolder... I ran sudo chmod -R a+rX myfolder/public_html then accidentally ran sudo chmod a+rx ~ instead of ...
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1answer
269 views

How to prevent users from reading files but the webserver should still be able to read

I have a lighttpd test server on my testing machine with 2 users they all have there own folder with a public folder for the webserver in it, now I want to prevent that the other user can read the ...
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1answer
2k views

How do I set up a localhost website?

I have created a simple index.php file which I have places in /var/www/ next I changed the permissions of the file with sudo chmod +x index.php I then ran Chromium and typed in localhost to the ...
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218 views

Can I set a specific group|umask to be the default one for all actions within a certain path?

I would like to override the default umask and owner:group settings within certain directories only, without requiring root privileges, as that kind of defeats the purpose. For example, when I touch ...
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3answers
647 views

Why can't I set group and ownership of one folder without afffecting the other?

I've upgraded an Ubuntu PC from 10.04 to 12.04. Problem is all the permissions were wrong on the home folders. So, I did the following: sudo chown -R james:james /home/james/* sudo chown -R ...
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675 views

Cannot rm or chown /var/log/snort as root

I am using Ubuntu 11.10 Gnome. I installed an older version of Snort, uninstalled it and tried to install the latest version as root using sudo. However, the install crashed because root does not ...
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1answer
2k views

Mysql Datadir on different hard drive

I'm currently running Ubuntu 13.04 and MySQL 5.5. I have been using InnoDB, and the default location for installation. The problem is that my main OS partition is fairly small (36GB), and I need to ...
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3answers
291 views

How to have root access without logging as root? [duplicate]

I am using 13.04 trying to edit or drag and drop files but since all the folders are owned by root and assigned to the group "root" I am not allow to do this. I added my current username to the ...
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3answers
26k views

Permissions of mounted cifs share (Shared from FreeNAS)

I have a FreeNAS installation running under VirtualBox. When I try to mount one of my FreeNAS shares in Ubuntu 12.10, permissions on the share prevent me from entering the directory, listing or ...
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1answer
3k views

Log into root directly [duplicate]

Quite a while back i'd worked briefly on Red Hat, and it had this option of booting into root directly, and not using the su command to change your access. I know that by default the root account is ...
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1answer
2k views

how do I install gpointing-device - I seem to have got my brain into a loop

I would like to install the gpointing-device-settings package which I found on the Launchpad website https://launchpad.net/ubuntu/+source/gpointing-device-settings I tried: apt-get install ...
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1answer
1k views

Broke my software center cache

Software center won't start unless I run it as root. Running it as root, there was a message about the cache being unwritable. My .cache folder is on a separate drive and symlinked to my home ...
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1answer
14k views

How to edit GRUB file at /etc/default/

I was trying to edit GRUB file at /etc/default/ for fixing the brightness issue. But I am unable to do that as there is no option to save GRUB file after edit. This may be due to some permission ...
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1answer
84 views

bash permissions

My friend was trying to tighten up security on his ubuntu server and changed the permissions on bash. He logged out, and now the computer won't let him log back in. The server is an off-site server ...
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1answer
881 views

i want to open a file in the root directory in my c++ application in write mode.

I have a file in the root directory which I want to open for editing in my QT application. Generally we use "sudo (editor) filepath" to open the file with roots permissions. But i want to achieve ...
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1answer
360 views

Cannot update .ICEauthority, do not have permission to remove/change, cannot resolve host!

I've seen this question asked many times before, and tried every single solution I found, yet none of them solved this problem. All my programming/computing knowledge comes from copying the solutions ...
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1answer
105 views

Allowing apache to access /home/user directory

I have a text file at /home/user/textdata that user change it everyday and I have a PHP script at /var/www/ that want to read that text file. How to add the permissions?
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1answer
710 views

need help with unison

I finally converted my desktop machine from Windows Vista to Lubuntu 13.04. I am having trouble getting the unison file sync program (version 2.40.65) to work on the Lubuntu machine, despite trying ...
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1answer
614 views

unable to create `/etc/skel/.bash_logout.dpkg-new': No such file or directory

I can´t install any updates. I tried apt-get clean, apt-get install -f, dpkg --configure -a. Nothing helps. I even tried to create a file or a directory in /etc/skel - it cannot be done, even with ...
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2answers
3k views

Change Ownership of External Hard Drive?

I recently bought an external hard drive on Ebay, I received it and plugged it into my laptop and when I tried moving files onto it, it refused me to drag them on. I looked into the properties of the ...
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1answer
880 views

Shared library not loading. Loading only under root

I have an executable that requires a shared library that resides in /opt/... folder. I have included the path in LD_LIBRARY_PATH under /etc/environment and updated it using source /etc/environment. ...
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3answers
23k views

Why doesn't `sudo cd /var/named` work?

I want to cd into /var/named but it gives me a permission denied error, and when I want to use sudo to do this I am not permitted. What is the technical reason for this, and is it possible to do this ...
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1answer
80 views

Unpacked a tar…badly - now locked out of my own files!

Not knowing well what I was doing, I opened a tar with sudo, and now it's linked to a user that doesn't exist and I can't remove it under any circumstances - perhaps because it's off the home ...
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1answer
993 views

problems with /etc/sudoers

I am running ubuntu 12.04 on i3 laptop. By mistake I changed the permissions and changed the user(from root) of /etc folder and I am getting a error when trying to use sudo like: sudo: /etc/sudoers ...
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1answer
432 views

Permission denied viewing content of remote network share

I'm trying to mount a remote network share, but have trouble viewing the content. It is showing up in my mounted devices but when I attempt to open it, I get This location could not be displayed. You ...
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4answers
4k views

recovering sudo/recovering root ownership on system directories — how? possible?

I'm trying to find out the default ownership & permissions for my ubuntu install. I'm also trying to figure out whether the wrong-headed granted of file ownership to the user robert to system ...
3
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1answer
4k views

transmission-daemon: error loading working config-file. User priveliges?

Transmission-daemon has worked perfectly on a small headless server for a long time. However, it currently gives me the following error: transmission-daemon Error loading config file -- exiting. ...
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1answer
9k views

Sudoers NOPASSWD for command not working but ALL is

I've been trying to grant www-data to use sudo service apache2 restart without a password but no matter what I try, nothing works. I have read a few hundred posts regarding this issue on different ...
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1answer
762 views

Unable to transfer files from laptop to USB due to permission error

I am unable to transfer file from my system with Ubuntu 11.10 OS to a USB drivee (Hp 16GB). When I copy files from system and try to paste in USB the paste option gets disable. But the reverse is ...
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1answer
83 views

Does guest account work like a VM (virtual machine)?

If guest session creates the entire user and everything, when running, then erases it all. It sounds like a VM instance, turning on and then turning off/logging out. Is it?
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3answers
770 views

“Failed to setuid to root.” How do I Establish a VPN network?

My university decided that the old VPN-network, which worked fine, wasn't good enough anymore and abandoned it. Now I have to establish a completely new VPN-network. My university provided me with a ...
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1answer
75 views

Don't bother non-admin users with admin questions

My wife and kids use ubuntu laptops which I administer. How do I prevent the system from, e.g., offering them software updates? (I know I can disable that for the whole box, but that is just one ...
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1answer
66 views

Installed Ubuntu but can't change installed files

I installed Ubuntu on Windows 7. Also, I installed GROMACS software. There is some problem with one of the files located in /usr/local/gromacs/share/top/ folder. I want to make some changes to and ...
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1answer
255 views

What are the default file permissions for the Ubuntu One folder?

I was playing around with the 'chown' command. In my home folder /home/frank I ran sudo chown -R root 'Ubuntu One'. How can I restore the default file permissions of that folder? I want to be ...
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3answers
1k views

When I create files using < touch > command, files are now all locked. What changed?

I am a new user of Linux and am using Ubuntu 13.04 Raring Ringtail. I really like the malleability of this operating system despite the fact that the common opinion, according to general information ...
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1answer
589 views

NTFS-3G permissions and inherit fstab flag

I'm trying to user a NTFS filesystem with full ACS's set just like windows. Everything is working fine except the permissions set to created files. Here is my environment: fstab: ...
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1answer
4k views

K3b - cdrecord has no permission

I use Ubuntu 12.04. Today I tried to burn an ISO file in a DVD-R disk using K3b. It used to work, but today, after one and a half minutes, it stopped saying that "cdrecord has no permission to open ...
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2answers
6k views

VirtualBox shared folder is accessible but not workable

On my host system (Windows 8 Pro 64 Bit), I installed VirtualBox (4.2.12) and installed Ubuntu 12.04 32 Bit as guest system. I also installed the VirtualBox guest utilities to create shared folders. ...
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0answers
334 views

Ubuntu Server 12.04: can't write to nfs share

I have installed a small home server running 12.04, now trying to configure an NFS share with Webmin version 1.620. I have gradually lowered the security on the share to basically nil, yet any write ...
0
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1answer
2k views

Cant open second hard disk “permission denied”

I just did a clean install of 13.04 and now cant open any hard disks or hard disk partitions, it says "permission denied". I can open them as root but when I try and change the permissions it says I ...
2
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1answer
3k views

Ubuntu 12.04 changing permissions External Hard Drive from Terminal [duplicate]

I am attempting to rescue files from a broken system via the root terminal of the recovery console. I have a seagate 2TB external hard drive. Output of sudo fdisk -l: /dev/sdb1 is the device boot ...
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1answer
2k views

image from webserver is not shown in web browser

I am new ubuntu and recently I install 'xampp 1.8.1' on my ubuntu 12.10. My problem is that image from server can not be shown. My code is <div class="sideBlock unSung"> <h4>Unsung ...
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1answer
547 views

How can I access my Mac OSX home folder on my macbook?

First of all, I'm not under ubuntu, but Pear OS 7, (quantal based). I have a macbook pro 5,5 (late 2009) with an SSD where there are the OSX and Pear OS partitions, and an HDD where I store my OSX ...
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1answer
508 views

File/Folder Permissions lost after restart hence file not displayed in file browser

After restarting my laptop, I have observed that some of the files in my hard drive disappeared on their own, and they seem to reappear after multiple restarts. This has happened mostly to files which ...
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1answer
549 views

MyISAM problem after moving datadir of a MySQL database

I recently moved my MySQL database data directory from the default location /var/lib/mysql onto a new harddrive located in /media/..UID../mysql, following the steps you can find in several posts. ...