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

learn more… | top users | synonyms (2)

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How to overcome “Permission denied” running C program even after “chmod +x”?

After compiling a C program on Ubuntu 10.10, after executing chmod +x ./a.out, I am still getting bash: ./a.out: Permission denied. How can I run my new executable?
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rsync problems and security concerns

Hi I am attempting to use rsync to copy files between two linux servers. both on 10.04.4 I have set up the ssh and a script running under a cron job. this is the message i get back from the cron ...
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1answer
477 views

Samba fileshare playing nice with windows users and accounts

I have been reading article after article and asking around in the chats for help on why this is not working :( Here is what I've done so far: I have installed samba following the server guide in ...
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2answers
2k views

Why can't I mkdir?

It seems to me that I have the proper permissions, so why can't I create directories in my $HOME directory? dotancohen@neptune:~$ whoami dotancohen dotancohen@neptune:~$ pwd /home/dotancohen ...
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2answers
3k views

12.04 run from cd, cannot copy files from mounted disk

I am running 12.04 live from cd and trying to copy some important files from a mounted hard disk to an external disk. (My previous installation of 10.04 crashed and I want to install 12.04, and back ...
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usb devices unacessible [duplicate]

Possible Duplicate: Changing file permissions on USB external hard drive I have a funny thing happening with my USB devices. They are detected and show up as they should but I cannot write ...
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2k views

How to determine file in “Error opening file for reading” error

Since Ubuntu 12.04, whenever I open aterm, I get the following error message: Error opening file for reading: Permission denied aterm still opens and runs correctly, but I get that error message. ...
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2k views

NTFS file system has become read only after running Gparted

I installed Gparted and all my ntfs file systems have become read-only.I tried the solution given here How to change permissions to the other drives in a hard disk?, using pysdm, but I'm unable to ...
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Why won't fetchmail work all of a sudden?

I ran a chmod 777 * on my home folder. (I know, I know. I'll never do it again.) Ever since then, fetchmail seems to be broken. I use it to fetch mail from an Exchange 2003 mailbox through DAVMail ...
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190 views

what is the password for downloading games?

I am trying to get a game called torcs and supertuxkart and it says to add or remove software the super user has to take the action and I have edubuntu.So what is the password?
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1k views

How do i change the Permissions of my home folder?

I am the only administrative user of my computer, for some reason it tells me that I am not the admin, even though i am logged in as the admin user??? I recently clicked on my home folder's ...
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935 views

authentication problem at Ubuntu 12.04

I get this error when I try to authenticate using Gnome GUI. I have NO authentication problem when I use terminal. It is suggested here that I need to do sudo chown -R myusername:myusername ...
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Cannot install themes due to permissions error

I have looked up several tutorials online, they all have one thing that I don't have on my screen a menu that brings them through "System > Preferences > Appearance." I also can't find my .themes ...
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365 views

Why does nothing work after I randomly changed some file permissions?

Ok so last night i was trying to set permissions to some folders in my File System, since apparently im not an admin on my own computer. And now everything got messed up today and i don't know what to ...
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1k views

Can't launch Desura due to “Permission denied” error

Nothing happens when I click Desura, clicking force update works but that does not fix the problem. EDIT: I know am getting this error: Details: Failed to execute child process ...
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1k views

Nautilus uses different permissions for mounted drives

I've written two bash scripts to give read-only or read/write access to my NTFS partition: read-only access: sudo umount /media/Data_Drive/ sudo mount -t ntfs-3g -o ...
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3answers
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How do I move a folder to /usr/lib?

When I try to move it via WinSCP, it says: General failure (server should provide error description). Error code: 4 Error message from server: Failure Request code: 18 I'm trying to install Java. ...
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2answers
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Ubuntu took away permissions from my Data partition

The pangolin has struck again. The bug of the day for today is Ubuntu taking away my permissions on my Data partition (NTFS). One moment everything worked fine, the next moment I couldn't chmod ...
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189 views

webserver folder cannot be accessed without using root [duplicate]

Possible Duplicate: How to avoid using sudo when working in /var/www? My webserver folder, called www, cannot be accessed without using root. Any ideas?
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86 views

Configuring permissions with Bastille

I was using Bastille to improve the security of my OS. To set this software properly, it ask you several questions related to security rules and you respond it (Y-N). I'm stuck at this question that I ...
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512 views

I just recursively chmod'd everything under / to 750. Any tips?

I won't be the first and I won't be the last, I suppose. While playing around with the find command, I made a whoops and it would appear that instead of changing the permissions of the ~/web directory ...
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Permission denied error for running command on ubuntu

cd ~/mosesdecoder/sample-models ~/mosesdecoder/bin/moses -f phrase-model/moses.ini < phrase-model/in > out I’m having an issue running this on the command line it gives me a permission denied ...
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Can't change permissions on USB or System Hard Drives in Ubuntu 12.04

I know there has been a lot of threads about this issue and most have been cleared up but not mine. I am a newbie and the terminal commands must be over my head. I tried to use pysdm but when it ...
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3k views

Permission issues with mounted new hard drive on Ubuntu machine

I recently purchased a new hard drive, for the sole purpose of storing a database. I am running Ubuntu 10.0.4. Since I had not done this sort of thing before, I decided to use the GUI (Disk Utility) ...
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452 views

Unable to login to Ubuntu Permissions Issue?

Well, I think I royally messed this one up. In the process of changing permissions in my home directory, I now can't login using any of the 3 accounts I had setup, except for the Guest account. I ...
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5k views

no sudo permissions to /etc/hostname

When I try to edit my /etc/hostname file, using sudo nano /etc/hostname (or any other editor) I get the following: Error writing /etc/hostname: Permission denied I then tried: sudo chmod u+w ...
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569 views

Executing a C program stored on a windows drive? [duplicate]

Possible Duplicate: .exe file permission fail I wrote a simple hello world program but not stored it in Ubuntu's home directory, instead I stored it on one of the Windows drives. (I am ...
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511 views

Installing ZFS changed my sudoers file

Following the wiki's advice, I installed ubuntu-zfs. However, once everything installed correctly, and I tried installing another application via apt-get, I get a weird issue with my sudoers file: ...
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How can I get octal file permissions from command line?

There is a chmod command to set file permissions, but can I get file permissions in octal mode (such as 755) from the command line?
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Incompatible group permissions in Linux - Is it a bug?

I am on Ubuntu 11.04. I am creating another user and placing an existing user in the group of other user, hoping to write in the home directory of other user. # uname -a Linux vini 2.6.38-11-generic ...
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795 views

How do I list the public files in my home directory? (mode 777)

I want to get the list of all the files in my home folder, having rwx (read-write-execute) or 777 permissions for everyone. Also, what is the command to know the permissions of a file?
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What is the default permission for /var/www?

After upgrading to 12.04, I had to reinstall the LAMP stack. Then I brought all my www project folders from a pen drive to the /var/www folder (using sudo nautilus, and dragging the files in there). ...
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How to provide an application with full disk read/write permission?

I have a problem concerning Amnesia: The Dark Descent bought in Humble Indie Bundle V. The game crashes when I hover over notes, and so does Ubuntu. After the crash I can only see the desktop ...
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Plex won't enter my home directory or other partitions

I just installed the Plex media server from the Ubuntu Software Center, and opened the web interface. I wanted to start by adding a collection. When it gave me a file browser, I wanted to go to ...
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How do I format an external hard drive? [duplicate]

Possible Duplicate: How to format a USB or external drive? I have an external hard drive formatted to ext2 and have no permissions. Can't add files, and I can't look at the file that's on ...
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1answer
523 views

How to get full rights in Ubuntu to manipulate a file that is owned by root [duplicate]

Possible Duplicate: How can I elevate nautilus privileges to move or copy a folder as root? I want to have full rights in Ubuntu 11.10 so I don't have to use the terminal every time I want ...
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“You are not the owner…” message when trying to access folder

In the properties menu of this folder the permission is set to "root" user and group, it shows the message "you are not the owner, so you cannot change these permissions." I am indeed the owner and ...
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How do I get around administrator priviliges are required for this task when installing real vnc?

When I try to install real VNC and enter in the registration code I get administrator privileges are required for this task. How do I get around this? I am the only user on the computer and already ...
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Deactivated my Systemadministrator whil i was loged in as standard-user so I can't reactivate it because of the deactivated administrator-password [duplicate]

Possible Duplicate: How do I reset a lost Administrative (root) password? (My distribution is Ubuntu 12.04) because of the advice to deactivate the Root-User in reasons for safty etc. I ...
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2answers
6k views

Why can't I change the permissions of files I have access to?

I'm logged into a server as user "ubuntu" and I've got files that look like this: -rw-rw-r-- 1 www-data www-data 33150 2012-06-04 22:17 file-a.png -rw-rw-r-- 1 www-data www-data 36371 2012-06-04 ...
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I cannot save php.ini in ubuntu 12.04

I want to change the upload_max_filesize = 2M to 50M, then I started edit on php.ini, but when try to save it, it displays error message below Could not create a backup file while saving ...
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1answer
2k views

Require assistance with failed to open stream: Permission denied in

I have set up (actually migrated) wordpress on ubuntu 10.04 with apache2 and everything works great. However, I'm getting the following error when using a plugin to upload files to the server: ...
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3k views

Subversion & SVN+SSH Permissions

I want to set up some Subversion repositories, to be accessed via SVN+SSH, so that each repository is owned by a different group and is only accessible for reading and writing by the group's members. ...
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chmod: invalid mode: `+a'

System: ( lsb_release -a ) Distributor ID: Ubuntu Description: Ubuntu 10.04.4 LTS Release: 10.04 Codename: lucid This is my command: sudo chmod +a "www-data allow ...
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1answer
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I want to change the text dat “lampp” in opt/lampp (I installed xampp), but i can't

I tried to change the rights of the folder "lampp", heres a screenshot: I also pressed "Zugriffsrechte auf enthaltene Datein übertragen" (Apply Permissions to Enclosed Files). What did I do ...
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Nautilus doesn't allow me to access files

I recently backed up the home partition of my hard drive, using an Ubuntu LiveCD and GParted. Now every time I navigate to the partition a little padlock icon appears in the corner of the ...
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Permission to change a text file

After having bought the latest Humble Bundle, I am finding Limbo not to perform greatly. The advice on the F&Q site is Q: Limbo does not perform as well as I hoped for A: In the ...
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54 views

Why are many operations or commands in Ubuntu not allowed normally when you can just do the same thing by typing sudo?

What purpose does this server when bypassing is as easy as typing sudo? Forgive the naivety here but I am a rookie and I'm sure there has to be a good reason for this, and I'd like to know that.
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129 views

fresh install of 12.04 - migrating permissions?

I've got a dev box running 10.10 Desktop, and I'd like to start over with a fresh 12.04 install. I figure this would be cleaner than a series of upgrades through all the intermediate installs. It ...
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934 views

Restricting SSH users to certain access permissions

Is there a method to restrict SSH users to certain access rights for certain programs (such as Python, Perl, Ruby, Java, etc), but also a method to restrict them from leaving their /home/ directories? ...