Ubuntu is a free open source operating system based on the Debian GNU/Linux distribution. Consider using http://askubuntu.com/ to ask questions about it.

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Modifying ACL with setfacl in Ubuntu using -dmR switches gives an error

When using setfacl with the -dmR switches, it get the following error. Command: setfacl -dmR u::rwX,g::rwX,o::rX /hdd_1 Error: setfacl: Option -m: Invalid argument near character 1
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how do I re-edit text color in Gimp

I want to edit some of the existing text but for the life of me I can't figure out how. I, click on the text tool click into the image, which creates a text box, and type in my text this will ...
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4 views

seedbox with video streaming for linux?

I have a linux server where I wish I could access via web client and be able to download videos with a magnet link and then stream it through vlc or html5 video, does such thing exists?
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Asciio on Ubuntu, can't find export as .txt

I just downloaded Asciio to my workstation running Ubuntu 14.04. I created a pretty complex piece of ascii code in order to put as part of the documentation inside my code. I can save files and open ...
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2answers
12 views

Python3 fails import sqlite3

I just transferred a python module from my OS X system to Ubuntu. The module runs on the Mac just fine, but fails on the Ubuntu system with the following error: import sqlite3 File ...
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1answer
18 views

How to use dual monitors on a system with 2 computers?

I have dual monitors set up to work with extended screens on Windows 7. Now I've hooked a computer to one of these monitors (monitor 1) with Ubuntu. When I change the input source on monitor 1. I ...
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1answer
4 views

MIT/GNU Scheme Won't Start

I built MIT Scheme from source using GCC on Ubuntu 14.04, but attempting to run it gives me an error mit-scheme: can't find a readable default for option --band. searched for file all.com in ...
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2answers
18 views

Clone Drive Using Linux DD Command: Send IMG Over SSH Connection

I SSH to a VPN running Ubuntu Linux. To make backup copies of the hard drive, I use the following dd command: sudo dd if=/dev/sda1 of=/home/rick/hdImage-20150704.img It works, however, is there a ...
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1answer
24 views

Script Shell Find each occurrence of a String in a file

Here is the structure of my file: /**** Some Text here ****/ DN 10.147.243.93 51.46 KB 256 34.2% DN 10.147.243.89 83.05 KB 256 34.6% DN 10.147.243.88 66.43 ...
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15 views

“sudo dpkg-reconfigure keyboard-configuration” settings forgotten after reboot

I'm currently running on an Ubuntu 15.04 machine, and I've been attempting to set my Left Caps Lock Key as my Control Key. After following numerous ways of doing this, I've attempted the above ...
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8 views

Multiple Windows EFI entries in GRUB

I have bought a new pc and installed Linux and Windows in dual boot mode. I have installed Windows 8 (which I upgraded to 8.1) and afterwards I installed Xubuntu and selected the Windows disk as the ...
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15 views

How can I find why a port is used in Ubuntu Server? [duplicate]

I recently installed Kamailio 4.0.4 on Ubuntu Server 14.04. After first run. 0(5400) ERROR: <core> [tcp_main.c:2932]: tcp_init(): ERROR: tcp_init: bind(a, 0x7fb5b0783344, 16) on 127.0.0.1:5060 ...
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1answer
38 views

Windows 8 and Ubuntu 14.04 dual boot installation mess up

I've been trying to set up Ubuntu 14.04LTS and Windows 8 for quite some time now; several months. I've had over four failed attempts. I finally gave up and worked on Ubuntu in VMware from inside ...
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2answers
25 views

Unable to mount windows hard drive on linux live usb

I am fully shutting down windows with "shutdown /s /t 0". I also tried "shutdown /s /f /t 0" I then insert my linux live usb and boot from it. Everything works fine, but when I try to access my ...
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2answers
23 views

can not update ubuntu, failed to download files

I'm trying : sudo apt-get update and get : ravit@ubuntu:/$ sudo apt-get update Ign http://extras.ubuntu.com trusty InRelease Ign http://ppa.launchpad.net trusty InRelease ...
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3answers
362 views

Is there a way to stop terminal from saving commands?

Well, the thing I'm tired of clearing my terminal history again and again. So I was wondering if there's a way that the terminal doesn't record your history or the commands you've used. If not, is ...
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1answer
17 views

How to chroot with sshd in a directory not owned by root?

I followed this, to restrict user to a determinate directory and it works perfectly, but i need to chroot a user in a directory that is /dir1/dir2/dir3/dir4 Suppose dir1 is owned by root, dir2 by ...
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2answers
24 views

How to boot from usb?

I have a bootable usb device. I attach it to pc, and open bios settings. My settings are : Advanced USB Configuration legacy usb support - enabled xhcı pre-boot mode - enabled Boot ...
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1answer
14 views

How can I get the list of the currently installed certificate authority on my ubuntu?

If I'm correct, the list of CA can be found in /etc/ssl/certs/ca-certificates.crt, but that's only the certificates. My question is how can I get the name of those CA ? I want to know if the CA my ...
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0answers
16 views

ubuntu 14.04 cannot “apt-get update” ok

I am running ubuntu 14.04. Recently I am not able to update the apt source. When I typed "sudo apt-get update", the process is very very slow, in hours that not proceed. And the result is all "Ign" or ...
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1answer
19 views

“attrib -s -h *.* /s /d” access denied errors

My problem is that my usb flash drive doesn't show the contents and I searched it on Google I find the solution for this error. But When I type the command from cmd as administrator it gives me ...
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1answer
17 views

One Server, Multiple Websites from a different PC

In my local network I have a ubuntu server (I can get to it via http://server) I have lamp all set up ready to go, and have made a couple of websites, which I can access when I'm using the server ...
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15 views

Ubuntu Boot (Panic) Error

[1]![enter image description here][1]I recently did a update on my machine and ever since Ubuntu will not boot properly. I get an error message and I have to go into recovery mode in order to start ...
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Start Application on Boot Ubuntu

I am trying to make my application Ruby on Rails (OpenProject) start with the system on boot. When I test the script as root it returns the error: /usr/bin/env:ruby: No such file or directory. My ...
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12 views

Unmet dependencies for OpenGL

I recently tried out the xorg-edgers ppa for Nvidia-352 driver and it kind of screwed things up, so I removed it. Now, I can't make or install things I used to be able to. I am trying to make the ...
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3answers
50 views

How to install ubuntu from usb?

I have windows 8.1 and ubuntu 12.04. I want to install ubuntu 14.04 on 12.04. I downloaded .iso file and unetbootin. I made a bootable usb using unetbootin. I want to install ubuntu but pc don't ...
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19 views

Tracking rogue memory consumption in Linux [duplicate]

Recently, I found my machine running out of memory when my existing ssh session said it could not fork because the machine was out of memory. Upon restarting, I verified that the free memory ...
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2answers
40 views

Remove one of multiple Operating System

I have two operating systems, ubuntu and backtrack 5. I no longer need BT5. How do I remove/uninstall BT5 without losing any data of Ubuntu ? Edit 1: After I delete the BT5 partition how do I extend ...
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2answers
28 views

F12 to access Ubuntu dual boot alongside Windows 8.1?

I installed Ubuntu alongside Windows 8.1 in UEFI mode. The problem is that I only can access the Ubuntu by pressing the F12 key(image below), which forces the boot. On another computer with dual ...
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3answers
40 views

difference between ${} and $() in shell script

$ echo $(date) Thu Jul 2 16:33:11 SGT 2015 $ echo ${date} $ name=foo $ echo $(name) ksh: name: not found $ echo ${name} foo Seems like ${variable} is the same as $variable. while $() is to ...
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osTicket user, what themes are you using (screen) ? [on hold]

I'm currently testing osTicket, and I want to implement a skin for the tool, but I can't find what I want so I'm asking you :)
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18 views

Ubuntu Software Center .deb installation

I created a .deb package and it can be installed via 'dpkg -i' perfectly or using GDebi but I don't want to ask users to install additional tools. The package is intended to be for low level users so ...
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2answers
51 views

Dual boot Windows 8.1 and Ubuntu

I just got a Lenovo X1 Carbon and I am flabbergasted on dual booting -- having the record in the boot manager. Cliff Notes It came with Windows 8.1. I shrunk the Windows partition (within windows ...
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10 views

Purpose of Omnidaemon?

I have ubuntu 12.04 running(as prime OS) with installed Windows and RedHat in VM, there is Omnidaemon process(in Ubuntu 'system monitor') with multiple instances and it is using almost 95% of the CPU ...
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23 views

shell script finish but doesn't exit

I have 2 shell script a.sh and b.sh which is running under ksh. a.sh does the following action #!/bin/ksh some action check condition and send email if fail or success call b.sh b.sh does the ...
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11 views

Unable to access Windows files in Ubuntu 14.04 filing systems

So I got a USB flash drive and loaded Ubuntu 14.0.2 on it using Universal USB Installer and I got it working. I booted into Ubuntu successfully. The reason I am doing this is so I am ready if I ever ...
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1answer
36 views

How to save two IPS in single network card

I am using centos 6.6 and going to configure single network card with two IP address. My configuration look like this /etc/sysconfig/network-scripts ifcfg-eth0 DEVICE="eth0" BOOTPROTO="dhcp" ...
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11 views

ubuntu flavors…same package repositories?

Do all the various ubuntu-based distros all pull from the same package repositories? For example, if I run this command: sudo apt-get install <foo> will I get the same package version of foo ...
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6 views

software raid1 compatible on OSX and Ubuntu on external disks

I'm using external disk dock with two disks and want to setup software raid1 so that the setup works when usb3 mounted from both ubuntu and osx. How is this possible?
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2answers
61 views

Why are Fedora partitions not listed under the extended partition?

I recently installed Fedora 22 on a desktop PC. I wanted to install it on a logical partition. During installation, in the Anaconda installation wizard, I chose to create a 16 GiB logical partition as ...
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7 views

How can I change my fcitx input method from the terminal?

I am looking for a way to change the fcitx input method using a terminal command. I know I can use the hotkeys, but for the purposes of an application I am writing, I need to use a command (something ...
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8 views

dns forwarding for specific zone not working - bind

In bind we created specific zone and got set a forward options, but it fails to resolve. Details as follow, For mydomain.com dns working fine. but we use developer site called mydomain.com.dev we ...
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1answer
11 views

codeblocks in ubuntu : code not running [duplicate]

I installed UBUNTU 15.04 onto my laptop in the same drive as Windows 8.1. When i try compiling and running a code on codeblocks in ubuntu, there is no output but this : "sh: 1: ...
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2answers
32 views

Accessing shell variables inside 'sudo' block : export doesn't work

I am writing a script to fix a missing 'F' letter in a mail log file. The mail log file is continuously updating. I am getting a file name, after that I am doing 'sudo su' to get superuser access. ...
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15 views

Recover lost Ubuntu Partition

I lost 60GB of my hard disk partition during a failed Ubuntu installation. It is now invisible while using Windows 8.1. How can I recover it? Please help.
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1answer
20 views

Can we install Other Linux softwares in Kali Linux

I am a networking Student and just moved to Kali Linux. For my University work I need some software like ns2/ns3. I know we can install them in Ubuntu. My Question is Can we install ns3 and ns2 in ...
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2answers
29 views

DNS with OpenVPN on a linux server with routing enabled

I am running a Ubuntu 14.04.1 LTS headless server. Before I enabled routing, my AirPort Extreme was the router. At that point, DNS was not an issue. Ever since I stopped using the AirPort Extreme, and ...
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11 views

Proftpd File Permissions Issue

I'm using proftpd on a Ubuntu server and the FTP is working on a directory with 777 permissions. Files are uploaded as ftpuser:ftpgroup which is correct. However, on a directory owned by someone else ...
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1answer
36 views

Script Shell Find a String in a file

Here is the structure of my file: /**** Some Text here ****/ UN 10.147.243.93 51.46 KB 256 34.2% UN 10.147.243.89 83.05 KB 256 34.6% DN 10.147.243.88 66.43 ...
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1answer
13 views

Installing luabind on Ubuntu

So I've been looking on the internet for a moment and found nearly no tutorial, or good instructions on how to install luabind. I found that I need to have boost and lua 5.xx installed to install it; ...