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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3
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1answer
856 views

How to let a user execute a script owned by root? Setuid doesn't seem to work anymore [duplicate]

I have some bash scripts that I use with the user 'root' to manage iptable rules. The problem is that I want these things at the same time: The script must be owned by root Permissions must be 700 ...
2
votes
0answers
356 views

Vagrant-lxc container not starting

Firstly I'd like to say that I'm new to LXC and I may have some problems getting the right idea of how the things should work. The thing is I'm trying to start a previously download vagrant-lxc box ...
1
vote
1answer
63 views

Who is setting http_proxy?

On an Ubuntu system with bash as the default shell for the interested user, the http_proxy environment variable is set to a specific value in a fresh GNOME Terminal. The .bashrc file for this user ...
1
vote
0answers
195 views

Character encoding issue with my linux install?

I just installed Ubuntu 12.04.4 64 bits, all seemed to be ok, when I started to work on console I noticed: that I couldn't get some accented characters typed in to the console, for example, if I ...
1
vote
2answers
2k views

What driver is being used by a wireless usb adapter?

I've installed Linux Mint 16 on a netbook that I'm trying to pump more life into. I'm currently stuck with configuring the wireless as the computer uses a USB wireless adapter (rt5370 from Ralink) due ...
0
votes
1answer
762 views

rs232 to usb not working

I also asked this question on AskUbuntu but there nobody comments on it I have a konig rs232 serial to usb adapter (no FTDI chip), but when I try to connect to a cisco switch/router (via Putty, ...
1
vote
1answer
170 views

Ubuntu load and hang on live USB [closed]

I seem to have run into some difficulties trying to install Linux alongside my USB. I made a bootable USB stick and done all the UEFI firmware settings from which I disabled fast boot. Now when I run ...
2
votes
1answer
451 views

How to improve quality of microphone input

I am both new to linux and "sound processing" and I'm sorry if this looks like a question being answered with the first entry on Google. Because I don't even know what to google for. A friend of mine ...
1
vote
1answer
94 views

Ubuntu 13.10 big problem with privilegies

I have HP 14 chromebook (with haswell celeron processor and 4 Gb of RAM, 4G), all is okay when I installed Ubuntu 13.10 saucy with crouton script I didn't get any errors. But when I'm trying to ...
1
vote
1answer
192 views

Can I deactivate the broadcom driver if I have a Realtek wireless card?

I am trying to get my wireless working on ubuntu 12.04. If I run lshw I see this output, indicating a Realtek wireless card. *-network UNCLAIMED description: Network controller ...
6
votes
1answer
24k views

How do you fix apt-get update “Hash Sum mismatch”

I have an Ubuntu 12.04 virtual box vm that I instantiate using Vagrant. git clone https://github.com/spuder/puppet-gitlab vagrant up As soon as the vagrant box runs apt-get update, I get the ...
0
votes
3answers
108 views

contents of xp cd is not visible [closed]

I'm using Ubuntu 13.04. I want to take an ISO copy of XP installation CD but when I insert CD it's seen as empty CD. Is there any way to access the content of CD?
4
votes
1answer
3k views

Why am I getting apparmor error messages in the syslog about NTP and LDAP?

On my newly installed Ubuntu 12.04 machine, with ntp and slapd installed, the following messages appear in /var/log/syslog at regular intervals: Feb 23 18:54:07 my-host kernel: [ 24.610703] ...
3
votes
1answer
2k views

MySQL server won't install to a new os (Debian, Ubuntu)

Today I wanted to install (on a new VPS with new OS) a MySQL server. I used this command: apt-get install mysql-server mysql-common mysql-client-5.5 I tried with Debian 7 (x64 and x86) and Ubuntu ...
1
vote
0answers
100 views

Automatic shut down of Ubuntu 13.04 along side Windows 8

Things with Ubuntu were working absolutely fine, but suddenly, the laptop started overheating whenever I logged into Ubuntu. And that lead to automatic shutdown. I realised that it was definitely due ...
2
votes
1answer
434 views

Configure guessnet to switch automatically between LAN and WLAN

I want to configure guessnet and wpa_supplicant such that if I plug in my LAN cable, it connect to the network via the cable and if I unplug it, it automatically switches to WLAN and vice versa. I ...
3
votes
0answers
248 views

How can I crop a 1920x1200 monitor to 1920x1080?

I have just purchased a 1920x1200 monitor, and have some situations where I want to force the output to the more common 1920x1080. However, I don't want to distort the output, and would prefer a ...
1
vote
1answer
82 views

How to get list of members subscribed to a list - Mailman

I have an Ubuntu server with Postfix and the Mailman list manager. My server stopped working, so I need to find a way to list the emails registered on the list of the Mailman. Note: I was able to ...
1
vote
1answer
299 views

Online administration tool

do you know any solutions like webmin for my ubuntu/debian box? I want to control some of my machines over network via HTTP. Is there any solution that will provide me with a dashboard? Even better if ...
1
vote
1answer
277 views

Wi-Fi working on and off, mostly off on a HP laptop - take two

I have a HP laptop with Intel Centrino 2230 N card. The system is Xubuntu 13. Wi-Fi works on and off. When it's down, it still connects to the network and obtains an IP address, but ping to the ...
4
votes
1answer
269 views

How to de-select packages of a certain architecture in aptitude

I'm upgrading some Debian machines from i386 arch to amd64. The process is fairly straitforward: Boot a amd64 kernel For libraries which are multiarch-capable, install their amd64 companion ...
2
votes
1answer
146 views

chmod 600 fails silently

Here is what happens: $ chmod 600 foobar.txt $ ls -l total 1 -rwx------ 0 sampablokuper sampablokuper 13 Feb 19 21:00 foobar.txt Why is the last line not reading as follows? -rw------- 0 ...
1
vote
1answer
226 views

Debian/Ubuntu:How to compile a Linux kernel on one machine and use on other machines (same architecture)

Debian/Ubuntu: How to compile a Linux kernel on one machine and use on other machines (same architecture)? I know how to do it on the same machine. But to use a compiled kernel other machines, is ...
2
votes
1answer
4k views

“404 Not Found” when updating the package list using apt-get

Trying to update my Apt-based Sytems (Ubuntu 8.04.2 LTS (hardy)), I am getting this error any recommendations? # apt-get update Err http://packages.cloudkick.com intrepid Release.gpg Could not ...
2
votes
1answer
5k views

How to enable two network interfaces both for internet in ubuntu12.04

My physical server A has two interfaces: eth0 and eth1. I intend to enable the two network interfaces both for internet in ubuntu12.04. I configure the /etc/network/interfaces as below: auto lo iface ...
0
votes
1answer
243 views

mdadm large memory consumption [closed]

I am building a RAID 6 with mdadm (8 WD Red 3 Tb) on Ubuntu 13.10x64 server with ext4 filesystem. When I download torrent on the array, server RAM is filled for maximum cap (8 Gb) memory is free when ...
5
votes
3answers
5k views

Configure multiple interfaces with different hostnames using DHCP and DNS

I have a machine running Ubuntu 12.04 Server with two interfaces connected (eth0, eth1) to the network. Our network is set up so that a FreeBSD based DHCP server hands out leases and registers the ...
6
votes
2answers
576 views

How to automatically generate .desktop file?

There's a .deb software that doesn't have a .desktop file, I created that file. I want to create another package for that software, when the user installs it, I want the .desktop file to be generated ...
1
vote
1answer
604 views

Why does dig take much longer than DNS query time?

I'm investigating slow DNS responses on Ubuntu, I have installed bind9 to improve times from local cache, but still something is odd. What could make dig wait for 10 seconds and say that query time ...
0
votes
1answer
765 views

Playing or converting .dv4 files in Linux

I need to find a way to playback a number of .dv4 files on Ubuntu 12.04 and Fedora 20, possibly after having converted them to a more conventional format. So far I have managed to convert the files ...
5
votes
0answers
4k views

Running F.lux (Flux) or Redshift with Multiple Monitors with Nvidia Optimus

I have tried installing F.lux and then Redshift, and configured them to run on multiple monitors with no success. I wonder if my setup, which includes Nvidia Optimus setup using Bumblebee could be the ...
0
votes
1answer
1k views

Why can't I connect to a hidden SSID in Edubuntu?

I'm running a godforsaken version of Edubuntu and I'm trying to get it to connect to a wifi with a hidden SSID. I've scoured the internet for the past hour or so, trying to find anything similar and ...
3
votes
1answer
199 views

How to overwrite a non-Debian package?

Background I am trying to install Google Drive, so I am installing Grive. I previously tried to install SyncDrive, which isn't supported any longer. Now, I am having some conflicts between the two ...
2
votes
0answers
329 views

How to configure external USB touchpad for a laptop

I have a laptop that, obviously, comes with a touchpad and a keyboard. However, I have an USB keyboard with integrated touchpad that better suits my needs. I use Ubuntu 13.10 and I cannot find how to ...
3
votes
3answers
945 views

How to parallelize the for loop while scp the files?

I am running my below shell script from machineA which is copying the files machineB and machineC into machineA. If the files are not there in machineB, then it should be there in machineC. The below ...
5
votes
1answer
847 views

Download package via apt for another architecture

I am currently in a architecture amd64, so when I try apt-get download vlc, it downloaded the appropriate architecture for my system, but how can I download the i386 version via apt? It's for ...
1
vote
2answers
7k views

How do I set Nautilus as default file manager in Elementary OS

Elementary OS uses a program called files as the default file manager. I would like to use Nautilus as my default file manager as used in Ubuntu 12.04 . I have GNOME Nautilus 3.4.2 installed on my ...
2
votes
2answers
1k views

Difficulty with EncFS on CentOS

I'm trying to figure out encfs, but am having some difficulty. This is what I have done so far: I created 2 test folders mkdir /home/oshiro/Desktop/encrypted mkdir /home/oshiro/Desktop/decrypted ...
1
vote
0answers
342 views

Making an Android container with Ubuntu 12.04 on the Samsung ARM Chromebook : initrd file not found

I'm trying to run Android as guest OS with LXC containers on Ubuntu 12.04 LTS on the ARM Chromebook, reading this tutorial. At some point of the tutorial, it says: Then get the initrd for your ...
0
votes
0answers
210 views

Ubuntu - USB device not discovered after system restart

I have an USB device that after pluging in is visible as /dev/ttyACM0. Unfortunately, after system restart, it is not beeing discovered and I have to plug it out and in again to work. I have found a ...
0
votes
1answer
282 views

enable IST timezone in puppet

I'm trying to run below Puppet manifest to set 'IST' timezone. class { 'timezone': timezone => 'IST', } When I run Puppet apply timezone.pp, it installs properly. But when I check the system ...
0
votes
1answer
115 views

Is it possible to add granular permissions on a folder without installing acl?

I have a folder public_html with several subfolders on Ubuntu 12.04 server. Is it possible to add different permissions on individual subfolders for two new individual users without changing the ...
1
vote
1answer
339 views

Can Not Install JStock on Ubuntu (zorin 7)

Trying to install Jstock on a Linux Ubuntu Box. As a new user trying to install this product. I have received this error after following instruction - on to a Ubuntu (Zorin7) system. Instructions ...
0
votes
1answer
424 views

how to run a script on ubuntu shutdown when it needs network on

I have an upstart script that needs to run on reboot or shutdown, but it needs to access the network to post an http requests and wait for the replies, I tried start on starting rc and start on ...
3
votes
2answers
5k views

How to reduce ClamAV memory usage?

I'm running a Ubuntu based web server (Apache, MySQL) on a 512MB VPS. This is more than sufficient for the website it is running (small forum). As I wanted to add some protection against viruses I ...
3
votes
1answer
2k views

mdadm - RAID5 array size vs. actual disk size mismatch

I have 4x 3TB WD RED disks that are in mdadm RAID5, which should total an array size of 9TB usable space, however I only have 6TB. I have confirmed all disks are in the array, the only strange thing ...
0
votes
0answers
26 views

How to add color to my command prompt? [duplicate]

On my system: echo $PS1 prints: \[\e]0;\u@\h: \w\a\]${debian_chroot:+($debian_chroot)}\u@\h:\w\$ I followed this tutorial here to modify it: PS1="\e[0;38m \u@\h: ...
3
votes
1answer
1k views

chrt(): “failed to set pid XXX's policy” on one machine, but not others

I have several Linux machines, all of them running the same kernel (Ubuntu 12.04, 3.5.0-45-generic). On one of them, I am unable to use chrt at all. If I attempt to use it on a new process, I get the ...
3
votes
0answers
153 views

Apparmor cp -al [closed]

I am attempting to setup a Apparmor profile for rsnapshot. When I run in complain mode I get no errors. When I enable to the profile, I still get no apparmor errors, but rsnapshot itself is broke. ...
2
votes
2answers
3k views

GNU screen status bar - how to make it display shell session names?

Let's say I have several shell "tabs" (or screens? sessions?) named bash1, bash2, etc. open in GNU screen. I want the status bar (i.e., the caption line) to display the names as "bash1 | bash2 | ..", ...