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

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4 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 ...
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4answers
19k views

My 'USB flash' does not have right permission. I can't copy files into it via Nautilus?

I have a USB cooldisk 8.0 GB. it was full of Windows viruses. I tried to delete them under Ubuntu 13.04, but it didn't allow me to delete anything! I formated it by the software 'Disks' to FAT ...
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0answers
12 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"....
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0answers
31 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
25 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 ...
8
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1answer
79 views

How to make /sbin/shutdown, /sbin/reboot etc. require sudo again in 16.04?

For whatever reason, we do no longer need to be root (or using sudo) to run /sbin/shutdown, /sbin/reboot etc. This seems to be because those executables are now symlinks to /bin/systemctl which ...
0
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1answer
23 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
13 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 ...
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3answers
2k views

Root directory '/' locked after using chmod

I accidentally used sudo chmod 3 / which gives a execute and write permission to the root directory, while deleting the read permission. How can I recover from this, I cannot even use sudo now.
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2answers
63 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 ...
0
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1answer
33 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 ...
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0answers
8 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: ...
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1answer
20 views

Why do it get this error while downloading source packages as a Regular user?

I'm downloading a source package and I get this error W: Can't drop privileges for downloading as file 'inkscape_0.91.orig.tar.gz' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: ...
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1answer
18 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 ...
0
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1answer
50 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($...
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1answer
9k views

Denied Permissions to access and move folder from a Mac Hard Disk

I have a iMac in which the Hard disk has failed. I am trying to get files off the users desktop that has not been backed up. I cannot repair the Hard disk and do not have another Mac to transfer the ...
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5answers
29k views

Automounted USB devices are read only

Since I upgraded to Ubuntu 12.10 the automout of USB devices does not work as expected. When I plug in a storage device it is recognized correctly but I do not have write privileges on it. I thought, ...
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1answer
23k views

Giving ownership of the directory to the apache user?

I have installed wordpress on LAMP. As I am new one to Ubuntu. So, I Used this online tutorial How to install wordpress on ubuntu manually But when I am trying to give ownership of the directory to ...
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4answers
8k views

tftp error code 2 access violation (tftp not working)

System info: Linux ravi-Inspiron-N5010 3.13.0-46-generic #79-Ubuntu SMP Tue Mar 10 20:08:14 UTC 2015 i686 i686 i686 GNU/Linux root@ravi-Inspiron-N5010:/home/ravi/Desktop# lsb_release -a No LSB ...
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0answers
15 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
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2answers
12 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 ...
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1answer
21 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 ...
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0answers
14 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
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1answer
49 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 ...
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2answers
4k views

Create FTP users with limited access only to home directory Ubuntu 12.04

I'm having Ubuntu 12.04 server and I have installed VSFTPD service for FTP. I'm trying to create a FTP user who has access only to /var/www/ directory and all permissions for sub-directories. ...
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1answer
47 views

I can't download anything on 16.04 LTS

When I try to download anything at all through the terminal on 16.04, it doesn't finish something as I do this command: sudo apt-get install kdenlive. It then tells me Unmet Dependencies. Try 'apt-get ...
3
votes
1answer
22 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 ...
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2answers
46 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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7answers
68k views

How to display file properties via terminal?

What is the command line that displays file informations (or properties), such as in GUI method Display properties in GNOME? I know that ls -l shows properties; but how to display the same ...
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0answers
20 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 ...
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1answer
39 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 ...
10
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8answers
32k views

“Could not update ICEauthority file” after login (independent of gnome)

I just installed Ubuntu 11.04 64bits in my new computer, and I got this two messages after login: and I've tried to login with classic gnome, and safe mode, but got the same messages. Any easy/...
0
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1answer
28 views

How to prevent break of NFS connection?

First of all I am new in this forum and not a native English speaker. Out of this any help and patience would be appreciated ;-) I have an Ubuntu server and a Linux Mint client. For Backup reasons ...
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0answers
24 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 ...
0
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1answer
28 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 &...
2
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0answers
21 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 ...
10
votes
7answers
81k views

Change XAMPP's htdocs web root folder to another one

I'm trying to change the XAMPP's web root default directory /opt/lampp/htocs to another one like /home/me/Dropbox/public_html without success. I've edited the file /opt/lampp/etc/httpd.conf # old ...
0
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1answer
27 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 ...
4
votes
1answer
51 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 (...
0
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0answers
15 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 ...
-1
votes
1answer
37 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=...
2
votes
1answer
22 views

gksudo pcmanfm alone or with gksudo leafpad?

If I open pcmanfm using the gksudo command this lets me manipulate files and directories safely. But what if I want to open and modify a text file in one of those directories? Will the gksudo ...
0
votes
4answers
7k views

MySQL not starting in Xampp

I am using Ubuntu 14.04 and Xampp 5.6.3-0. I cannot get the MySQL server to run. I have tried executing these commands so far (run in this order): sudo chmod 755 /opt/lampp/etc/my.cnf sudo chmod -R ...
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2answers
105 views

Sudo is not asking for password on Ubuntu 16.04

Ever since I update to 16.04 I notice whenever I use any sudo command the terminal does not ask me the password before executing the command,The command is directly executed.I am the admin and I have ...
0
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1answer
41 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
0answers
49 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 ...
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votes
1answer
54 views

I have this error whenever i try to install something “unable to lock the administration directory (/var/lib/dpkg/) are you root”! [on hold]

I am about to install the apache web server. I am getting the error whenever I run apt-get install: unable to lock the administration directory (`/var/lib/dpkg/`) are you root I tried with sudo apt-...
0
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1answer
77 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
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2answers
967 views

Please settle a Sticky (bit) argument

I got into a good-natured spat with a fellow worker about the nature of the sticky bit. My contention, working from the chmod man page was the the sticky bit, if set, allows only the owner to delete ...
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1answer
54 views

Why do mount, ping and su have a sticky bit set?

In /bin most binaries don't have a sticky bit set except for: fusermout, mount, umount, ping, ping6 and su. Why are these ones not supposed to be deleted or renamed? Is it because they are used in ...