Permissions are the unix way of controlling access to resources such as files, directories and devices and may be specified for an owner, group, or all users.
4
votes
1answer
178 views
Change view in emacs dired mode
What options are there to change the view of a directory in emacs dired mode? How to apply it? How can I change it on the fly?
In particular I want to know:
How to make it show the file sizes in ...
2
votes
2answers
543 views
Limited SSH user on Ubuntu 12
I'm running Minecraft on a server. How can I give my friend SSH access just to the minecraft folder (a root folder), the screen command, and some ports?
10
votes
2answers
525 views
Deny flash plugin access to (a particular) webcam
I recently bought an external webcam to play around with OpenCV. It works great out of the box in Debian, but I realized that when I browse any site that contain flash content (youtube, soundcloud), ...
2
votes
1answer
363 views
Mounting a Windows partition without giving execute permission
How can I mount a Windows partition so that the files within it don't have execution permission? I mount a Windows partition using:
sudo mount /dev/sda3 win
win is a folder in my home dir.
This of ...
1
vote
0answers
1k views
Understanding udev rules and permissions in libusb
I had a problem with my scanner. Xsane worked only as root. Using it as normal user it didn't find any devices. Adding the user to the groups saned or scanner didn't help.
Finally I solved the ...
2
votes
2answers
292 views
How can I allow a different user to connect to my session using X11vnc?
I'm trying to use x11vnc to allow users to remote control certain computers. This works fine in general, but there is one aspect I have trouble implementing. I want to restrict access to a specific ...
1
vote
1answer
110 views
How do I keep KDE from asking new users for a password when I use /etc/skel to set up their enviroment?
I made this nice custom KDE setup on Arch Linux with customised settings like desktop background, panel settings, kwin settings, etc. I heard that if you copy all the hidden files from your ...
5
votes
3answers
380 views
chown not permitted, but I have write access. How can I take recursive ownership?
Consider the following scenario:
I have rwx access to a directory as a member of the group id of the directory.
The system admin does not let users run chown (see this thread for details)
How can ...
2
votes
1answer
387 views
Permissions corrupted?
A few weeks ago, I installed Linux Mint on a USB flash drive. I used it to copy the contents of my HFS+ external hard drive to my Windows drive on my desktop. Then, I formatted the external drive to ...
0
votes
1answer
173 views
Giving input to background processes
Is there any way to give input to background processes or which run as daemon processes?
I was coding some Puppet configuration files and I had to push them to some remote machine. For that purpose I ...
2
votes
4answers
256 views
Strange file ownership with Ubuntu
Normally we know when we create one file in Linux, the file's owner and group will set with the creator. For example, I have one user, usera, after I execute
usera@srv1:$touch 1.txt
I will find the ...
4
votes
2answers
223 views
Password protecting a system file? (e.g. /etc/resolv.conf)
I am trying to parental control myself by restricting web access via OpenDNS. The OpenDNS account password will be handed to someone trustworthy. Now, I want to put some restriction on the ...
1
vote
1answer
290 views
Permisions overwritten when files are transfered via FTP. What to do?
Got my web server up and running using apache2 with the ability to ftp to /var/www folder. However, if I make an update to .html and copied over the file via ftp, the file's permisions become more ...
0
votes
1answer
528 views
No permission on external drive [duplicate]
Possible Duplicate:
can't change file permission
On my hard drive everything is fine, but when I go onto my external drive I can't chmod. I get no error message but the changing simply ...
1
vote
3answers
985 views
What does GID mean?
What does GID actually mean?
I have Googled it and this is what linux.about.com said:
Group identification number for the process. Valid group numbers are given in /etc/group,
and in the GID field ...
1
vote
2answers
141 views
How to maintain file ownership when running 'yum update'
I'm running CentOS 6.2 and installed nginx as root. After the install I changed the owner and group of the install to it's own user and group to keep thing a bit more secure.
I logged in as root and ...
3
votes
1answer
1k views
How to handle network interfaces on crunchbang linux desktop?
I have installed crunchbang statler which is based on debian squeeze.
By default there is network-manager-gnome 0.8.1 (/usr/bin/nm-applet I believe) running with an icon near the clock/tray area.
I ...
19
votes
1answer
911 views
Why can't root execute when executable bits are not set?
root user can write to a file even if its write permissions are not set.
root user can read a file even if its read permissions are not set.
root user can cd into a directory even if its execute ...
2
votes
1answer
292 views
How do I set permissions for a directory so that files and directories created under it maintain group write permissions? [duplicate]
Possible Duplicate:
Make all new files in a directory accessible to a group
I have a directory in which collaborative files / directories are stored. Say directory abc is owned by root and ...
2
votes
2answers
184 views
Gaining root privileges in SCO
I am learning Linux for work, so am still a bit rusty on the edges.
I am needing to change the folder permission of the directory /opt, and I know in Linux, you do the following:
chmod 775 /opt
I ...
10
votes
1answer
4k views
How to skip “permission denied” errors when running find in Linux? [duplicate]
Possible Duplicate:
How do I remove “permission denied” printout statements from the find program?
When I run this command in Linux (SuSE):
find / -name ant
I get many error ...
2
votes
3answers
662 views
Change Folder Permissions
I started off with changing to the folder I want to change permissions for, and that is the opt folder.
$ cd /opt/
test@testVM:/opt$
So I tried changing the permissions for this folder now using:
...
10
votes
1answer
286 views
Can I restrict a user to use special programs?
Is it possible to add a user and restrict him to run special programs?
For example after this user logs in, he can only open Firefox to use Internet and no other programs can be run by this user.
For ...
3
votes
4answers
1k views
What is the default permission of folder /var?
I am a complete beginner in Linux. I just installed Ubuntu 12.04 in a pendrive, then installed MySQL and Apache PHP and then I tried to install Moodle (a distance learning platform I use at work).
The ...
3
votes
1answer
287 views
How do permissions work when moving directories?
Recently I tried to move a directory that I own to another directory (which I also own), but I couldn't. I then noticed that I don't own the parent directory.
This made me wonder what are the rules ...
1
vote
0answers
254 views
Permission issues while setting up cakephp
I am pretty new to linux and trying to setup cakephp on opensuse 12.1.
I did as told on the cakephp website(blog tutorial) and most probably encountering some permission issues.
I slapped the cakephp ...
3
votes
2answers
170 views
Can AIDE scan a directory inside a directory the user doesn't have read permissions for?
I would like to use AIDE to help me verify the integrity of my home directory on a shared Linux system. I am not an administrator of this system. I have built and installed AIDE in my home directory ...
4
votes
1answer
752 views
Evince fails to start because it cannot read .Xauthority
I'm logged in remotely over SSH with X forwarding to a machine running Ubuntu 10.04 (lucid). Most X11 applications (e.g. xterm, gnome-terminal) work fine. But Evince does not start. It seems unable to ...
0
votes
1answer
1k views
Giving apache user same permissions as root only on specific folders
Not sure if this is possible but is there a way to grant the Apache user same level of permissions (ownership) as root only on specific folder(s).
Why I need this:
We have a CentOS 6.2 server with ...
3
votes
0answers
294 views
Set GPIO permissions cleanly
Can the default permissions and ownership of /sys/class/gpio/ files be set, e.g. by configuring udev? The point would be to have a real gid for processes that can access GPIO pins on a board.
Most ...
3
votes
1answer
953 views
How should I rsync files in /var/www if I want them to be owned by www-data?
I have set up a new ec2 ubuntu box and installed apache and php5. By default you log onto the box with the ubuntu user who has sudo privileges.
I believe apache runs as root and php5 runs as ...
4
votes
2answers
147 views
Is it possible to represent the +X symbolic permission with an octal value?
Is it possible to represent the +X symbolic permission with an octal value? The chmod(1) man page says:
execute/search only if the file is a directory or already has execute permission for some ...
2
votes
2answers
757 views
can't change file permission
Whenever I create or copy few shell files to usb storage device, then I am not able to make them executable.
If I create test.sh, it's default file permission will be 644, but when I execute
...
3
votes
2answers
331 views
What causes files to lose permissions?
There's been more than one occasion where something has gone with system because all the sudden there were permision changes to certain key files (sometimes taking a long time to find which file is ...
3
votes
3answers
140 views
When adding a user to a new group when does the user group permissions become active when its a /nologin user?
I have a service level account to run my webserver, and this user is setup with /sbin/nologin.
Normally when you add a user to a group you must logout and login to use the new group permissions.
...
2
votes
2answers
1k views
Find web server group? Permissions problem
I'm trying to make Wordpress work. I currently have this error message:
Could not create directory.
/var/www/html/wp-content/upgrade/theme_name
when trying to upload a theme. This is the ...
2
votes
4answers
724 views
Permissions to deny SSH users from accessing other user's folders
I am currently running Fedora on a network computer, acting as a host to other users who will SSH into my terminal to do their work.
However I realised that they are also able to access my /home ...
0
votes
0answers
142 views
How can I setup auth/winbind to prefer local accounts over AD even if the account is in both systems?
I seem to have an interesting account/permissions problem on my RHEL 6 server. We migrated from a RHEL 3 installation and I moved over /etc/shadow,passwd,and groups so that we can maintain all of our ...
7
votes
3answers
425 views
Prevent a unix account from being able to SSH [duplicate]
Possible Duplicate:
Disable direct login for normal users (like oracle) in linux but allow scp and sftp?
I want to prevent a unix account from being able to be SSH'ed with, but it should ...
0
votes
1answer
164 views
Incompatible group permissions in Linux - Is it a bug? [duplicate]
Possible Duplicate:
How to apply changes of newly added user groups without needing to reboot?
I am on Ubuntu 11.04. I am creating another user and placing an existing user in the group of ...
1
vote
1answer
577 views
How to fix this mysql permission problem?
I'm trying like mad to get rails dbconsole to work (Rails 3.2.6, if that helps). The problem is that when I run the command, I get:
gems/railties-3.2.6/lib/rails/commands/dbconsole.rb:81:in `exec': ...
1
vote
1answer
867 views
How to create an user only with SSH -access and easily-set-up .ssh -dir perms?
I often mess up when I manually set up the .ssh -dir, easy to forget some flag. I often need to create a new user and only allowing access with SSH, how can I do that? Basically, I want to stop doing ...
2
votes
2answers
303 views
How to set permissions what users can see (drives, folders) on opensuse 12.1?
I have a several users on one machine and its needed to specify which user can access (read & write) specified folders and/or mounted drives.
First of all, one user shouldn't see a ...
0
votes
1answer
323 views
OSX : rmdir “permission denied” but directory removed
This is a question from a newbie trying to learn UNIX commands.
I was trying to test the rmdir command by removing a test directory located in my Downloads directory. I have read and write rights on ...
2
votes
3answers
4k views
Device is Mounting as Read Only (Can Copy Files as Root)
I am attempting to mount my Amazon Kindle, 3rd Edition. It automounts correctly and when I run mount -l, I get the following output:
/dev/sdg1 on /media/usb0 type vfat ...
1
vote
1answer
373 views
How does apache determine what directory to show from public_html?
I am using Ubuntu 12.04 and have configured apache to serve from ~/public_html. I am trying to serve some directory contents over http on LAN.
When I did the following:
ln -s ...
2
votes
2answers
144 views
execute bit on directories, but not files [duplicate]
Possible Duplicate:
How to apply recursively chmod directories without affecting files?
What is the command to apply execute permission for directories (for traversal), but leave the ...
1
vote
1answer
195 views
What is “raw mode in hex” from stat output?
When using GNU stat to probe the filesystem, there are a number of format sequences available for the --format/--printf arguments; this one in particular
%f Raw mode in hex
doesn't make much ...
3
votes
3answers
613 views
Recursively list files with file names, folder names and permission in CentOS
Is there anyway I can list files by typing a command in the shell which lists all the file names, folder names and their permissions in CentOS?
3
votes
1answer
12k views
VSFTPD, 553 Could not create file. - permissions?
I've set up VSFTPD on Amazon EC2, with the Amazon Linux AMI. I created a user and can now succesfully connect via ftp. However, if I try to upload something I get the error message "553 Could not ...
