Linux refers to the family of Unix-like computer operating systems using the Linux kernel. If your question is about a certain distribution only, use a more specific tag.

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Debian laptop loses all network access, can't ping anything

I've got a laptop running Debian (Jessie) that for whatever reason has decided it hates wireless. It has some kind of Intel wireless card (not sure which), and so uses the iwlwifi package for ...
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Create a bridge between a tunnel and ethernet device

I have a Raspberry pi with Debian wheezy. There are three connections exists: eth0: native usb ethernet, connected to the router. eth1: plug-in usb ethernet adapter tun0: tunnel created by ...
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2answers
22 views

How to reflect changes in PATH as done by a user script

I have a script which does some basic root PATH integrity check and inputs a line in ~/.bash_profile to source my script, so that changes my script made in root's PATH is permanent across restarts: ...
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1answer
21 views

How to batch resize many photos - but keep timestamp intact?

I have thousands of photos in many folders. I want to batch resize them to e.g. 3000px on the longest dimension and keep the timestamp intact. I have used the wonderfully simple tool Phatch to resize ...
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1answer
30 views

chroot: failed to run command ‘/bin/bash’:

I am trying to modify a kernel image before using it for qemu. I am trying to add a compiled binary to the image. I am using 64 bit Linux 14.02. What I am doing is, linaro-media-create --image_file ...
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17 views

Production plan for Two Simultaneous OS in one VirtualBox?

I have not found any public plans about having two OSs in one VirtualBox. Is there any news about having the feature of running two OS instances inside one VirtualBox?
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1answer
23 views

How to use Window Manager of Linux inside VirtualBox?

I have the same problem in Redhat Linux and Debian Linux. I cannot use the normal switching between windows. I mean this square window manager: I tried all keys CMD, ALT, CTRL, FN and SHIFT and ...
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10 views

SELinux issue with php_shell_exec

I have a php site on CentOS7 that needs to use some shell scripts using php_shell_exec. But the scripts do not run due to SELinux (that I require). None of the scripts use sudo, I understand that ...
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2answers
51 views

How to create a virtual machine from a bootable USB?

I need to take a live USB, that has Ubuntu 12.04 and a ton of customization on it, and create a virtual machine in Virtualbox from it. I ultimately actually want to get this installation up to Google ...
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1answer
30 views

Unable to See Files on Drive On Windows 7

Drive is 1T external USB SSD formatted to NTFS (by Ubuntu). (Dual boot Windows 7 and Ubuntu 15.04) Works great on Linux. But in Windows 7 it shows up as empty. No errors. dir /a shows just two files, ...
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15 views

Grant full access to the contents of a directory to a user

I have a directory that has directories created in it, and files created in those directories. There are several layers of directories that are generated. The files and directories are created ...
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How to use Kalibrate and rtl-sdr to detect my GSM modem?

Would I use kalibrate and rtl-sdr with a D-Link HSUPA 3.75g GSM modem? When I try it and these programs don't detect this modem. root@kali:~# kal -s GSM900 No supported devices found. root@kali:~# ...
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1answer
16 views

Capturing all messages that are directed to console in linux

Is there a way how we can capture all the console messages to a file that are coming from different applications in linux.
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29 views

One virtualbox linux machine act as router the for second virtualbox machine

I have 2 virtualbox machines setup with debian. The first one has 2 network adapters: NAT and Internal Network, the second one has only 1 network adapter: Internal Network. On the first one I have ...
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0answers
14 views

Restrict port access per application

I'm currently working on a platform that will allow other users to run their applications on my platform. Though, we need to be able to restrict this application in terms of RAM, CPU usage, network ...
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0answers
7 views

Display management in Gnome not working.

I've just installed Fedora 22 (64bit). I have to monitors, one recognized as #1 (on my right) and one as #2 (on my left). Assigning the monitors to right hand side worked fine. I do though often ...
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0answers
9 views

Fedora login screen stuttering

I have the followwing problem with Fedora 22 (64bit): It boots fine, it shows the password screen for the encryptions all fine, then it takes a whole lot of time to even display the login screen. ...
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1answer
17 views

Accidently running perl-script with sh, how to detect that and take actions?

I had a bash-backup-script for quite some time which worked ok for me, but now I needed some features and put them into a perl-script. It works perfectly fine, and I'm happy. But my muscle-memory ...
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0answers
38 views

Linux disk full

I'm trying to copy a 2GB file from a USB flash drive to a BackTrack 5 image mounted on VMware Player but it keeps saying disk is full in the middle of the transferring process even when there's plenty ...
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21 views

How to tell system wich USB-soundcard I want to have hw:2, if the two are “snd_usb_audio”?

I have a USB-soundcard (Encore ENMAB-8CM) and a Webcam with mic (Logitec c170). I want to use Jack with the USB-soundcard and, using alsa_in and jack_connect via scripts, to connect Webcam mic to ...
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10 views

Getting macro keys from a Razer Tarantula to work on Linux

So this question is related to: Getting macro keys from a Razer BlackWidow to work on Linux Basically I have two older Razer Tarantula keyboards that I would like to use. (Specifically hoping to tie ...
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1answer
20 views

How to make an alias in root permament?

I did with an especific user, but i can't do that when the user is root (I know user root is not recomendable to use, but in my current job security policies are null in some systems and we want to ...
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15 views

How do I tell Make to use a library in my home directory?

I'm working on a linux system where I do not have root privileges nor do I have any other means to install additional libraries (that I know of). I'm trying to build a program in my home directory, ...
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3answers
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Starting a home file/media Linux server as a project [on hold]

I can see this gets asked fairly often, but I've got a bit different of a idea for what I want to do here. Right now I have a laptop running Windows 8.1 and a Galaxy S5 as my main devices. Both are ...
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11 views

External monitor flicker - probably when CPU usage is higher

I have Fujitsu UH554 ultrabook. At work I'm using Acer external monitor, via HDMI. At home I'm using HP Pavilion external monitor via HDMI -> VGA convertor. Sometimes if I'm at work (on Acer monitor ...
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1answer
23 views

Linux/Windows hosts file

I need redirect the domain (www.pokus.cz) to my local IP address (192.168.1.100/preview) because I need to make a test of my new web pages. I read that it's possible with add lines in /etc/hosts/ When ...
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1answer
28 views

Program to block an IP temporarily with iptables

Is there a program on Debian to block an IP address temporarily just by launching a command (specifying the IP and the duration)? With iptables/ip6tables alone I can create a rule, but I would then ...
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1answer
28 views

NAS suitable for this situation?

I work from home and am considering getting a NAS. Would using a NAS be suitable for my situation: I alternate working from a desktop and laptop, both of which run Linux I use PostgreSQL a lot along ...
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2answers
21 views

Anacron, execute job as many times as it has been missed

If I schedule a job to be run at 3 A.M. every day and it is missed 3 days in a row, will Anacron execute it 3 times when the system comes back running, or only once ? If it is only run once, is there ...
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1answer
44 views

Linux: command to lower window with focus

I'm looking for a command to lower a window with focus to the bottom of the stack of windows. I have a command to raise a focused window to the top which is: xdotool getwindowfocus windowraise ...
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1answer
55 views

devices inside /dev - are their naming persistent by default?

Can i check if devices like sda , sdb naming in /dev/ are persistent by default or there are some udev rules in place to create persistent naming for them ? Does udev itself create device naming ...
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1answer
43 views

udev symbolic links - where is /dev/sda pointing to

It is said that udev create symbolic links identifying the actual device and /dev/disk/by-uuid is an example. [root@centos1 by-uuid]# pwd /dev/disk/by-uuid [root@centos1 by-uuid]# ls ...
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boot linux from harddisk in an enclosure

I installed linux to a hdd in an enclosure (ehdd) (before installing I physically removed the sata power to the internal hdd). The boot from usb in the bios settings allowed me to boot from the ehdd ...
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14 views

Zimbra install : no answer from web console

I have just installed Zimbra 8.6 Opensource edition on a fresh centos7 install. Install went well, but I can't access it, neither the admin console nor the webmail. When I try to reach ...
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1answer
37 views

What exactly is a Linux filesystem? [closed]

I am having trouble understanding exactly what a Linux filesystem is. I understand it is the "directory" of files and folders located on the system: like /bin, /sbin, /etc, /opt, and so on. However, I ...
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9 views

Eclipse on new VM cannot download stuff, why not?

I copied eclipse into a new VirtualBox CentOS 7 virtual machine from another computer, but how do I get it to allow eclipse to download stuff from the internet? Here is the problem: Eclipse works, ...
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0answers
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G++ Compiler Stalls [CodeBlocks]

I am using CodeBlocks under Kali Linux and the g++ compiler stalls. SOMETIMES, I hit compile and at the bottom I get the message: g++ -fexceptions ...etc build main.o ... and NOTHING happens. If I ...
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2answers
38 views

How to access ISO image connected to virtual machine?

I am new to Linux environment and i want to install a package to a virtual machine. I have vmware esxi server, and i installed a virtual machine with fedora17 OS. My intention is to install Dropbox on ...
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2answers
13 views

Linux - How to run programs on external media?

I have an Ubuntu 14.04 LiveCD and the full Ubuntu 14.04 install on a bootable USB hard drive. I have g++ installed on the hard drive, but I need to use the hard drive for sneakernet. Is there a way to ...
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0answers
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I cannot get GNU Root android application to install a simple gui

Let me start off by saying I am not a master at the command line. I think it is old fashioned, but can at times be faster than a gui depending on what you need. It, by no means, can replace the ease ...
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0answers
9 views

Cannot get pip working on Python 2.6 in Fedora 22 Virtualbox

I'm working on a project that must be tested in a Fedora VM with Python 2.6.6. I have successfully installed that (so I can use that instead of the default 2.7), but I need to install some packages ...
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1answer
24 views

Why does sh not find files in my path that do exist?

When I type this in sh it outputs : $ $PATH sh: 12: /bin:/usr/bin: not found But, I do have a /usr/bin folder, and it's fuuuuull of stuff. Same thing with zsh: ▶ $PATH zsh: no such file or ...
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0answers
70 views

Why does phonegap not find Android when I set my path?

I am trying to setup phonegap to build for android. When I installed phonegape, it told me : npm WARN engine ncallbacks@1.0.0: wanted: {"node":"~0.6.7"} (current: {"node":"0.12.5","npm":"2.11.2"}) - ...
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2answers
35 views

Is it possible to log into Windows 8.1 remotely? [on hold]

I'm attempting to configure my Windows 8.1 machine to log into a user account upon boot from a wake on lan event. I understand that the Windows cannot differentiate the reason the computer was awoken, ...
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4answers
40 views

How do I CD to parent of deleted directory? (bash: cd: ..: No such file or directory)

I was running some simple commands in bash, and one of the commands I ran deleted my current working directory (nothing destructive, I just used git to checkout a branch where that directory doesn't ...
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2answers
28 views

udev - am i using it, where do i see it?

It is mentioned that udev present devices in /dev for devices that are presented to the kernel and it is use to create persistent naming. I have having 2 harddisk /dev/sda /dev/sdb. How does ...
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1answer
40 views

Creating GPT partition using sgdisk on emmc 2GB

I am trying to partition my 2GB emmc using sgdisk to have a GPT partion table. The commands show success and also the GPT partition table looks updated (even on reboot) but the partitions are not ...
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2answers
18 views

cannot set uid with mount

mount -o uid=1000 /dev/sdb1 /mnt mount: wrong fs type, bad option, bad superblock on /dev/sdb1, missing codepage or helper program, or other error In some cases useful info is found in syslog - ...
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0answers
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Linuxmint (could be say 17 mate 64 bit but assume 13 mate 64 bit for now) installation on a usb hard disk

Assume a standard desktop or a laptop that has the ability to disable secureboot and has the ability to boot from usb. I have an old 2.5 inch hard disk drive (unformatted - not even the partition ...
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Tascam US-800 Audio Interface no longer showing up on Ubuntu Studio

I bought a Tascam US-800 USB audio interface about three years ago. At the time I had a MacBook Pro (I think it was a 1,1 from 2006, and I know it was 32-bit) and Ubuntu Studio 13.04 (though possibly ...