Ubuntu is a Linux distribution with an emphasis on ease of use and installation. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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sudo rule with placeholder

i want to allow the use of /usr/sbin/ufw for a special user. But only for a given command: in my /etc/sudoers file i have now (for blocking IPv4 addresses): blockuser ALL=NOPASSWD: /usr/sbin/ufw ...
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40 views

(Super)user issues in handling services

Headless Ubuntu server 14.04. I have installed dropbox (as outlined here http://ubuntuserverguide.com/2012/06/how-to-install-and-configure-dropbox-on-ubuntu-server-12-04.html) and have added the ...
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1answer
14 views

Default settings for Inkscape ?

I want to take default settings for Inkcape in my Ubuntu 14.04 but I can't change by default setting. I already remove Inkscape, and re-install, but the configurations keep the same. How can I ...
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23 views

Cannot mount external hard drive after using Clonezilla

Linux Mint 17 Qiana 64-bit. Cinnamon. Yesterday I tried to back up my internal (where Linux resides) hard drive's image to my external USB hard drive using Clonezilla. Last month this operation went ...
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17 views

Problem after NIS configuration

I tried to configure NIS in a server and a client both running Ubuntu 14.04 following this guide and this guide. After a reboot the client machine got locked with this message several times repeated: ...
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1answer
10 views

Permissions when creating a simple Python package for pip

I'm trying to package a simple app I wrote, so that it can be installed on a system using python setup.py install and (later) using pip install awesomeapp. The app consists of two files in the same ...
2
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1answer
22 views

parse error in /var/lib/dpkg/status: `Depends' field, invalid package name `python:any'

How can I fix the following error? sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done The following ...
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3answers
66 views

What is the fastest way to create a list of directories specified in a file?

I have a text file, "foo.txt", that specifies a directory in each line: data/bar/foo data/bar/foo/chum data/bar/chum/foo ... There could be millions of directories and subdirectories What is the ...
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1answer
129 views

Read-only file system error while accessing the files on Ubuntu

I have a Ubuntu machine. I am connected to it remotely and getting the following errer: mkdir: cannot create directory `/testFolder': Read-only file system LIKE WINDOWS, REBOOTING the machine ...
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1answer
83 views

Start script on boot up?

I want to run a script when the system starts. The script is: #!/bin/bash gnome-terminal --tab -t "MyPC" -e "sh -c 'nohup firefox & nohup gedit & bash'" --tab -t "MYPC2" -e "sh -c 'ls -al;ls; ...
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0answers
8 views

Dvd drive disappears after Linux install [on hold]

I'm trying to install Zorin 9 Ultimate 64 bit linux,(based on Ubuntu), to dual boot my Lenovo Ideapad Y710 laptop with Windows 7 64 bit. Once Zorin is installed and I'm able to access each operating ...
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3answers
48 views

What happens if a person tries to log in with the same user account as someone who has already logged in?

I am currently logged into a remove server using a particular user account. I kicked off a really long script, and have no idea when it will finish. It is blocking me from using the terminal that I ...
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0answers
40 views

How can I resolve the initramfs issue during installation of Ubuntu 14.10 with an ISO file?

My system specs are: HP Probook 4445s, Windows 7 SP1, 64-bit, 4GB RAM, AMD A8-4500 APU I want to have both Windows 7 and Ubuntu on my laptop. I am installing Ubuntu 14.10 from an ISO file. I would ...
0
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1answer
57 views

Mouse and keyboard not working in Ubuntu 14.04

I updated my Ubuntu Linux to 14.04 and now the mouse and keyboard don't work in the login screen. I tried re-installing grub from a Live USB, but it's still not working. I would really appreciate your ...
0
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1answer
38 views

Ubuntu 14.10 init scripts: where to find shell function “clean_all”?

I just installed Ubuntu 14.10 . One of the things that I prefer in my desktop is to not clear out /tmp . I'm trying to do the same in 14.10: to prevent the /tmp from being cleared at boot. In one of ...
2
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1answer
17 views

Unable to change ulimit setting

I edited /etc/security/limits.conf to have root hard nofile 20000 root soft nofile 10000 And added session required pam_limits.so to /etc/pam.d/common-session and ...
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0answers
10 views

Linux Mint will not allow traffic from one specific PC on LAN

I was editing /etc/network/interfaces, and then decided to change my settings over VNC instead. This halted my SSH session and also my VNC. I'm not sure if this locked me out or not, but I set cron up ...
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1answer
43 views

How can I modify client SSH settings?

I am logged in a system as student. How can I modify client SSH settings so that when I write the following command ssh 123.4.5.67 , SSH client authentificates me as another user?
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1answer
28 views

What is the most suitable linux distribution for my Asus x550ld [closed]

Recently I installed ubuntu 14.10 on my pc in dual boot with windows 7 but neither the touchpad nor the network connection is working. Moreover I has problems when booting windows : windows partition ...
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0answers
16 views

Unable to access bugzilla url

Actually I installed bugzilla in one vm. It is using mod_perl and Email configured. Everything working fine. In browser i access the url http://MY_server_IP/bugzilla working fine. In another vm, I ...
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1answer
34 views

Change Owner From “root” in VMware's Shared Folder

I'm running a Xubuntu from a Windows 8 host. I can't change the owner of shared files from xubuntu by any sudo chown ... command. Is there any other way I can change the owner from the root to the ...
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0answers
55 views

How to setup unprivileged LXC container without reboot?

I am writing some bootstrapping scripts, and I can't get usermode LXC containers working on vanilla Ubuntu 14.04 headless without a reboot. Here is what i do. First, I download and install Ubuntu ...
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1answer
30 views

Dual boot Issue: Ubuntu and Windows [closed]

Initially I had Windows and Debian installed on my PC. Later, I tried to install Ubuntu over Debian. It installed successfully but after restarting I was unable to boot from Ubuntu.
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26 views

Linux user in group can't cd into directory with executable permission

(Ok, originally asked this on StackOverflow, got it downvoted with a suggestion to post on SuperUser, where I got a hint (but no luck) with using FUSE to mount media. As serverfault seems to have the ...
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1answer
24 views

How to monitor bunch of machines for CPU usage from another machine?

I have couple of machines as shown below which are running Ubuntu 12.04 and I need to find out the process name along with its pid whose CPU usage is greater than 70%. Below are the machines as an ...
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59 views

unix programming [closed]

Task 1 (10 marks) Code the program shown below and print the output of the program. #include <stdio.h> #include <sys/types.h> #include <wait.h> pid_t wait(int *status); void ...
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1answer
9 views

Dpkg env variable DPKG_HOOK_ACTION is not set in hook script

According to man dpkg I can use DPKG_HOOK_ACTION to get the current dpkg action being run in my dpkg hook script --pre-invoke=command --post-invoke=command Set an invoke hook command to be run ...
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0answers
11 views

Error to install svn on ubuntu 14.04

I tried to install SVN on ubuntu 14.04 and got the following error: $ sudo apt-get install subversion apache2 libapache2-svn apache2-utils * udev requires hotplug support, not started ... fail! E: ...
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0answers
13 views

Can't find where __put_user_1 is defined [migrated]

I have been going through the linux kernel module programming guide, and I decided to find out how put_user(*(msg_Ptr), buffer) works. After all macro expansion is done, it appears that this inline ...
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0answers
21 views

x2go unable to locate package x2goserver

I'm trying to install x2go on my test server following this: http://wiki.x2go.org/doku.php/doc:installation:x2goserver (ubuntu) The repo seems to add fine and gives details on how to use it and what ...
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2answers
25 views

Are RAID formats compatible across distributions?

I'm planning a NAS/home media server build, probably with a HP Proliant Microserver. It will probably have two HDDs in RAID 1, while the OS while run from a USB drive. Question is: once I've set up ...
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13 views

Sound not working in my Ubuntu desktop after the sudden power cut

i googled in many articles but does't fix this problem i tried this but does't help me sudo apt-get remove --purge alsa-base pulseaudio sudo apt-get install alsa-base ...
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0answers
39 views

ssh: connect to host 104.131.76.121 port 10222: Connection refused

I have been trying to solve this problem for quite some time. The error is in the title. The server is a digitalocean ubuntu 14.04. It was working before hand. I changed the ServerAliveInterval on ...
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0answers
9 views

Can't locate Cairo.pm in @INC

I am running prinseq for trimming my data but got this error: Can't locate Cairo.pm in @INC (@INC contains: /home/A/software/vcftools_0.1.11/perl How do I install this?
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1answer
20 views

Cannot find -lgcc

I'm trying to compile my next basic c program after hello-world. This contains two supporting modules. I have Ubuntu running in a VM through VirtualBox on a mac. Everything is up to date but I ...
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0answers
31 views

deleting admin directory after deleting an admin user

I am creating Admin accounts using this command, sudo useradd *new-admin-username* -s /bin/bash -g sudo -m It creates the admin's directory in the /home/.. Moreover, since these are admin, I can ...
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0answers
17 views

aterm or gnome-terminal window unresponsive to keyboard events

I try to investigate a problem: Depending on the way I launch aterm or gnome-terminal, the window may or may not be responsive to keyboard events. The cause of the problem may reside in Aterm, ...
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0answers
21 views

Set user-wide network proxy settings on Ubuntu (without restart)

Is there any reliable way to set proxy settings user-wide for all traffic on Ubuntu? As far I'm using {http|https|ftp}_proxy variables in /home/$USER/.bashrc which is nice but there's some issues: ...
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0answers
16 views

OpenVPN on Ubuntu VM

I am trying to create a VLAN Network from my home network for a web-dev platform. I am running Ubuntu servers in VirtualBox on a Windows 7 machine. I am running an Ubuntu DHCP/OpenVPN/Shorewall ...
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0answers
11 views

Yakuake doesn't save shell setting

When I change the shell appearance opacity it works fine but when I reboot Ubuntu again, the opacity is back to 0 and I have to configure it again. How can I save the Yakuake settings? I am using ...
2
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1answer
20 views

Linux with VM Windows guests in kiosk mode

We have a bunch of computers in our school, which are used by many students and some of them are really having fun in messing around with the system. However it's not possible to restrict access to ...
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0answers
17 views

trying to limit FTP users in proftpd

Have proftpd installed in Ubuntu 14.04 LTS It is running fine, and I have ProFTPD listening on two different ports for both unsecured ftp connections and sftp connections authenticated with private ...
0
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1answer
17 views

HP SmartArray RAID5 recovery on linux

This is a long time in the making, and I've finally got it working so I thought I'd share this with as many people as I can in case they're in a similar situation. Long story short - HP SmartArray ...
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0answers
30 views

Mount proc filesystem in a docker container

i want to install gitlab vcs in a docker container with ubuntu base image on it. But when i run gitlab-ctl recofigure, it can't write to a file on proc fs. How to mount or run docker to provide rw ...
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0answers
24 views

Use VirtualBox to access site on host from guest? the host and guest is linux

I'm running VirtualBox on a Ubuntu (host), the VM I’m using is fedora (guest). VirtualBox is setup to use the NAT network adapter, and I'm able to get to the internet. I use Port Forwarding to access ...
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1answer
16 views

`rvm list remote` not showing binaries for Ubuntu 14.04 box

I'm trying to provision a dev box with rvm on Ubuntu 14.04 (via Vagrant and Ansible). I've installed rvm: gpg --keyserver hkp://keys.gnupg.net --recv-keys D39DC0E3 \curl -sSL https://get.rvm.io | ...
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0answers
73 views

No ttyUSB when connecting USB-RS485 to Beaglebone Black

I'm trying to connect a externally powered board to control the motors of a robot to my BeagleBone Black. I'm using ssh over USB(the mini-usb) to control the Beaglebone from my laptop. The BBB is ...
1
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1answer
30 views

MacOS X Mavericks running VirtualBox cannot communicate with Linux VM

I have a MacOS X Mavericks host running Vagrant using VirtualBox as a provider. I have experienced several times that with different VMs (particularly Ubuntu Linux VMs) after the first time the VM is ...
0
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1answer
32 views

Shutdown so fast on iMac

I'm using Ubuntu 14.04 on iMac 27 in dual boot with OSX via rEFInd. It works nice but when I click to shutdown the Ubuntu it is so quickly and the screen becomes black in 1 or 2 seconds. So I can ...
2
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3answers
83 views

Ubuntu 14.04.1, 14.10 base distros take 30min+ to get to splash screen

Update: I've found a temporary workaround, but I would still like to find a more permanent solution. Workaround: I startout the boot process with the laptops battery removed. If I do this it boots ...