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

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23 views

Issue with dir is other-writeable but not sticky (blue text, green background on all directories)

Some background: Distro: Ubuntu 16.04 LTS Experience level: Not new to Linux, but not an expert. The issue: When working with SMART Tools to check an external USB drive, somehow I managed ...
0
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1answer
45 views

How to change access rights for /?

I accidentally changed access rights on / for my Ubuntu 16.04 using sudo chmod 466 /. I was supposed to change access rights for a file but instead I accidentally executed a chmod on / (root directory)...
2
votes
1answer
66 views

How to allow users to create and delete file(s) / folder(s), but not modify them?

I have created a group name "app-data" and a folder /db-data/archived-data/ I want members of app-data to have all rights on /db-data/ folder but I want the same group users have only create and ...
2
votes
5answers
73 views

Shell Script source file not saved

I saved a shell script in bin(created by me). When I run the program, to avoid ./ to run the script I need to copy the script to one of the directories specified by PATH variable. The bin directory ...
1
vote
1answer
19 views

Visudo - Change user without password doesn't work

I want a user to be able to change to another user without a password and any other root rights. I followed already a hint on http://apple.stackexchange.com/questions/82438/allow-sudo-to-another-user-...
1
vote
1answer
34 views

Activating Matlab from Command line and from Launcher [duplicate]

When I type Matlab (without sudo) on the command line for the shell, matlab properly opens. Then, on the left pane in Ubuntu 16.04, I tell Ubuntu to lock Matlab to launcher. However, when I try to ...
1
vote
1answer
26 views

Annoying access problem on /var/log/nginx

On my system (14.04), I'm not using www-data as the owner of nginx and php-fpm, using web instead. (for the curious: 1. because www-data is a ugly name, 2. for not using a user that everyone knows is ...
2
votes
1answer
38 views

LXD permission issues in Juju

I have recently updated to juju2.0-beta11 running on Ubuntu 16.04. I was using the previous release with success but I am having problems since the upgrade a few days ago. When I now try and run any ...
0
votes
1answer
23 views

Change Ubuntu Touch Nexus4 channel

When I try to change my Ubuntu touch channel on my dual boot Nexus4 to gain GPS advanced support, then first block being copied returns "Permission Denied" error. What am I missing? I am using the ...
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0answers
35 views

Shutting down causes SSH keys to not work

Information When I shutdown or reboot my Ubuntu Server(16.04), logging in via ssh returns: Permission denied (publickey). So far, the only way to fix this has been to reset the permissions of ssh ...
3
votes
0answers
53 views

lsattr: Permission denied While reading flags on directory

This question is risen from Undeletable directory in lost+found I have a directory which I cannot delete and it seems like the reason of that is wrong attrbiutes ('immutable' on that dir or 'append ...
0
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0answers
22 views

How to run netbeans 8.1 as root?

How to run netbeans IDE (Version 8.1) as root? I'm supposed to debug(do reversing) tcpdump source file(c file) I have gotten source code from tcpdump homepage tcpdump and I made New project with ...
8
votes
2answers
229 views

Undeletable directory in lost+found

How can I delete this directory? I did fsck and it has found some garbage, I looked through these files and there wasn't something important. So I've tried to delete the contents of /lost+found and ...
0
votes
0answers
18 views

Permission denied on www-data

I've read several threads and tried many things, but I gave up. I have an Amazon EC2 server with Ubuntu running Magento. I have the user ubuntu with which I connect through SFTP and modify files. I ...
0
votes
1answer
42 views

Installing NS2 under Ubuntu

I'm trying to install NS2 on Ubuntu 14.04. I followed the steps that are recommended and in this answer. But I'm still facing lots of errors. /home/smallko/ns-allinone-2.28/sgb/gb_io.w:576: undefined ...
3
votes
1answer
137 views

How to allow members of a group to read current and new files on a directory?

Members of the purchasing group should be able to read all the files in /data/sales. In addition, members must be able to read new files ever created in this directory. How am I going to get this done?...
3
votes
1answer
38 views

What permissions does freefilesync run on?

I have mounted a webdav folder using webdav as described here . For mounting this directory I use the following command: sudo mount -t davfs -o uid=bruni,gid=users https://serveraddress /home/bruni/...
0
votes
1answer
34 views

Apache is not working

I have Ubuntu Server 14.04.4 LTS. I have a virtual hosts on my server. My .conf file :- <VirtualHost *:80> # The ServerName directive sets the request scheme, hostname and port that # ...
3
votes
5answers
366 views

rm: cannot remove directory/: Permission denied

I made a directory , the name is "shadi" and I set this permission for it In this situation I have others permissions but why I can not delete the
1
vote
1answer
42 views

Unable to login with an SSH key

I am trying to login with an SSH key on Ubuntu but the problem is that, at login time, I am asked to enter the password instead of a passphrase key. I setup permission, generated a key multiple times, ...
0
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0answers
118 views

Synaptic Error: W: Can't drop privileges

I realize this has already been sort of asked, but the question I found was related to fonts rather than Synaptic in general. Every time I run anything in Synaptic, everything installs perfectly fine ...
0
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0answers
135 views

How to share Ubuntu 16.04 virtualbox guest folders?

I updated (fresh install) to 16.04 on my Ubuntu Virtual Machine, I am unable to get permission to access my share folder: share folder set to automount in virtualbox. account is a member of "vboxsf"....
3
votes
0answers
50 views

Trouble with USB Permissions/Ownership

I'm trying to use a USB drive (FAT32) on my laptop running Ubuntu 14.04, but the permissions are messed up and I don't understand them well enough to fix it. Running ls -l in /mnt shows drwxrwxrwx ...
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0answers
29 views

Problems with file/folder mode [duplicate]

I have a problem with a hard drive mounted on /media/data. This drive is mounted by means on the following command in the /etc/fstab file: /dev/sda7 /media/data ntfs user,nosuid,exec,nodev 0 0 ...
0
votes
1answer
60 views

Can't access Network Shared Folder

I want to share file from my laptop to PC throught router. Both computers are in the same network and they see each other. When I set up sharing on laptop with Ubuntu (with guest access and read/write ...
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0answers
22 views

Symlinks for Pictures, etc. foldes on Touch OTA11

I installed insync to sync GDrive and now want all the folders to sync - for this purpose I created symlink from ~/Pictures to ~/InSync/Google Photo but suddenly Gallery and Camera won't work anymore ...
0
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0answers
18 views

VirtualBox: same virtual machine in a shared folder result in file not accesible every time an user saves the state of the machine

I have created a shared folder in /Users/shared_folder. I have moved the virtual box files to that folder /Users/shared_folder/.VirtualBox VMs/ I have set the whole folder with all the permissions: ...
0
votes
1answer
47 views

Start up script - ubuntu16

I am trying to write a script which will run at startup. Issue is that I am trying to run this as root, on user login. Could someone advise me which is the best way here? I am on ubuntu-16, and I am ...
1
vote
2answers
68 views

Is it safe to revoke group other access to every directory in a file system?

I'm trying to secure an account on our server called ssh_user that is used purely for connecting via SSH to our server. Everyone on our team logs into this account via a PSK secured ssh connection ...
1
vote
1answer
25 views

How to change directory permission from read-write to read-only [duplicate]

I'm an elementary-os user and I recently installed XAMPP to practice PHP. At first, I had to give read-write permission to /opt/lampp/htdocs/, in order to create the project files. But ...
2
votes
0answers
32 views

login error in Ubuntu 16.04 with X authority problem

I've Installed Android Studio and wpscan metasploit and LAMP Stack server on my system. The next day when I've tried to login to my system I got that black loop page and backed to my login page. I'...
0
votes
2answers
20 views

Copying files to var/lib/tomcat7/webapps/ROOT

I have installed a web app in var/lib/tomcat7/webapps/ROOT that runs using tomcat7. When i check the file permissions,i see that they are owned by tomcat7 How can i copy a file inside ROOT and make ...
0
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0answers
28 views

Connection for controluser as defined in your configuration failed

I have been using LAMP on my system for a while now, i decided to change ownership of the lampp dir from root to my account, now i'm getting this control user problem that never existed before. I have ...
1
vote
1answer
22 views

Security - Apache's websites folder inside Home folder

Is it secure to change DocumentRoot path to some folder in user's Home directory? Or it's better to leave it be and using a shared group between your user and Apache server as you can see it in the ...
1
vote
1answer
77 views

/etc/dpkg/dpkg.cfg.d/multiarch: Permission denied [duplicate]

I have Ubuntu 14.04, and I'm trying to install wine:i386 to use PlayOnLinux, following this article. However, when I run: sudo echo "foreign-i386 architecture"> /etc/dpkg/dpkg.cfg.d/multiarch I ...
3
votes
1answer
37 views

process terminated with status 2 - How do I track the issue down?

looking for some troubleshooting suggestions... I have an application installed running as a service under my user account (yes, I should likely create its own account). Anyhow, every now and then ...
0
votes
2answers
100 views

How do I save php file in var/www/html when it shows error “Permission denied”? [duplicate]

I cannot save a php file in var/www/html and my computer shows error "Permission denied". How to change permission to save file here?
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votes
0answers
24 views

can't add a new pci identifier /sys/bus/pci/drivers/ahci/new_id

Ubuntu does not mount my disks connected with Marvell 88SE9172 SATA 6Gb/s interface. In some forums i found this is a kernel issue and under following link I found some workaround that adding new pci ...
1
vote
1answer
66 views

Trying to ssh root, why get permssion denied in 16.04?

I'm trying to set up passwordless ssh between root accounts in 16.04 (needed for Hadoop installs). I set up a password for root by sudo su - root and passwd. When I try e.g. ssh -l root slave3 or ...
0
votes
1answer
75 views

I can't put icons on Ubuntu 16.04 gnome-fallback desktop

I am running Ubuntu 16.04 Gnome, but using Gnome-fallback (metacity). I can't drag and drop icons from the application pull-down menu, but when I copied my backup from my external hard drive, which ...
2
votes
0answers
22 views

Weblink redirection to site from pdf

While opening a PDF in evince and click any web link on that PDF it is not redirecting to the site on UBUNTU 12.04. My default browser is google chrome. I have updated it recently. In terminal a error ...
0
votes
1answer
35 views

How to give permissions to user www-data (apache+php) to access media/user/sd card slot?

I have a php script that runs from apache2 call that needs to read files in a SD card. The SD card appears mounted in /media/user/name of SD card partition. I tried to read this answer Default file ...
0
votes
0answers
20 views

Installing postfix as non root user

I need to install postfix as a non-root user (no privileges to change user/group/owner). So far I have come across tutorials and documentation that assumes you are root or have the ability to install ...
4
votes
1answer
53 views

What is the danger of running untrusted softwares as a normal user

Sometimes I have to use some propriety softwares which I don't trust in them and in their behavior. Lets say we installed a propriety software in /opt/software, then we run it as a normal user (...
-1
votes
1answer
43 views

how to give a user permission in samba share?

i have created a samba server as following [global] workgroup = workgroup server string= samba server %v dns proxy = no netbios name = nas map to guest = bad user security = user [rc] comment=...
0
votes
1answer
43 views

You don't have permisission necessary to save the file,PHP Apache [duplicate]

I just installed LAMP server, which works fine. But when I code a PHP script and try to save it in /var/www/html, it says: You don't have permisission necessary to save the file Help me! How do I ...
0
votes
1answer
42 views

Proper samba config/share permissions

What is the proper permissions that should be set in the smb.conf and applied on the directory & files? The reason I ask is I have set force user = nobody in smb.conf on my shares, with the file &...
0
votes
1answer
101 views

How to access ubuntu server 16.04 sever's files from windows 10 PC?

I recently installed ubuntu 16.04 on a machine I built, hoping that it'd serve my home for file sharing, media server and probably for VPN. I have installed Samba and the LAMP server. I also have ...
0
votes
0answers
59 views

Can't access some files (NTFS), permission denied (not even with sudo)

Got a screwed up Surface Pro 2 and any recovery attempt on the Windows 10 installation has failed. So to save all the files I booted up the device with 16.04 LTS Live USB. The filesystem mounts ...
0
votes
1answer
59 views

Ubuntu Server unable to create directory in PHP

I have setup a little Ubuntu Server for developing some web apps. I have a little script that uses mkdir() to create a directory, but i am getting a permission denied, its a simple command mkdir($...