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

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Elementary os freya installer does not recognize existing OS and partitions

I have tried to install Elementary os freya on my laptop but in the partioning step it shows me a blank disk drive: 750 gb on unallocated space. when I start gparted (still in elementary os live usb) ...
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17 views

How to pick a different WiFi connection when one drops?

I have 2 WiFI connections available. Sometimes, the WiFi network disconnects, and when that happens, I'd like the system to automatically use the other connection. How can I do this? I'm using a ...
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31 views

Linux OS-level key chord

On my keyboard a few keys like Enter, Esc, and Ctl are difficult to press and I would like to avoid using my pinky for such high frequency keys. Is there a program I can run that intercepts all ...
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33 views

Synchronous replication between two NAS Business Storage and Ubuntu 12.04.3

My setup is I have two NAS setup. I can mount those NAS in a Linux Server (Ubuntu or Centos) and plan on writing on both NAS synchronously or replicate frmo one nas to the other one real-time. Anyone ...
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58 views

Precisely resizing master pane in xmonad

In the default layout in xmonad, I know I can resize windows horizontally with mod-l and mod-h but these actions resize by too much. I want to make very small adjustments to window sizes. I played ...
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52 views

SMB share authentication not working

i have problem with SMB share. I have 4 directories for users and one collective dir. I make accounts for users (Linux accounts and smb accounts). I could see directories in Nautilius but can't log ...
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22 views

Is there a way to open non-runnable files directly from CLI

Let's say I have file without execution permission. Now a quick way to open such a file over the CLI is to use xdg-open which uses the system default to open a specific file. Is it now possible to ...
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220 views

lvmcache — one cache pool for multiple origin LVs

I have a shiny new computer with a not-that-large SSD (120GB) and two gigantic spinning-rust HDs (3TB each). I want to partition it as follows: swap (~128GB), operating system (~128GB), and data ...
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41 views

VMDK linux physical partition + windows

so since i just found out you can point a vmdk to a physical partition and virtualize, I want to try experimenting. The Plan: Windows 10 OS on own drive linux (likely ubuntu or mint) partition on ...
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34 views

Linux Ubuntu clears user data on each reboot

I have dev board (Freescale T2080rdb) with default Linux running on it from NOR. When I want to create new or modify any existing files (e.g. touch /home/root/foo.txt) next time on new boot, ...
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165 views

Arch Linux Boot Halts on “Started Authorization Manager.”

I was using Arch Linux on my laptop, and during the shutdown procedures there was something making it wait and during that time my laptop ran out of batteries. Now when I try to boot it halts. This ...
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85 views

Remap Super_R to control (Fedora 22)

I have verified that keycode 134 (0x86) is my Super_R key on my keyboard. But I would like to remap this to control. However, I've tried nearly every permutation. What am I doing wrong? ...
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639 views

Kali Linux Wireless MacBook Air (Early 2014)

I have an early 2014 13in. MacBook Air that I recently dual-booted Kali Linux onto. My problems is that the wifi will not work, and iwconfig returns only "lo". I have tried to install the broadcom ...
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106 views

dropbox keeps asking to login and link every reboot

It appears that on each reboot my dropbox forgets settings and wants to re-link the same device. I installed dropbox.py, which in turn installed ~/.dropbox-dist. I ran it successfully and "linked" ...
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514 views

Noisy CPU Fan in Linux Mint

I have a Dell Inspiron laptop with Windows 8.1. The CPU fan is quiet when I use Windows. I installed Linux Mint with Cinnamon on another partition, but the fan is noisy all the time when I use Linux ...
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63 views

Is there any solution for University User Login Authentication for Internet access?

To access internet in campus, students are given username and passwords. It's needed to authenticate for every 8 hours. If any download in process, then the download fails. Need to authenticate ...
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117 views

GNU ddrescue imaging of failing hard drive is extremely slow

My friend has a (nearly full) failing 1 TB Western Digital My Passport. It will only occasionally mount on my MacBook, and refuses outright to mount on my Ubuntu box. I'm trying to use GNU ddrescue ...
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198 views

How do I download an entire folder with aria2?

Aria2 is a great wget replacement, having a lot of features like multi-threading, split download,download resume, etc But having all this features and option can make it hard to do some specific ...
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113 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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92 views

Prevent ARP spoofing in AP, “wl deauthenticate” command

I am in a situation where I cannot do MAC filtering in an AP and I need to block a user that is ARP spoofing the network. I am trying to use the command wl deauthenticate to kick the client. And I ...
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51 views

Unzip .gz file when line order is important

I am trying to unzip fastq.gz files and then analyze the sequencing data within them. However, later analysis is dependent on preservation of line (line 1 from zipped file must be line 1 in unzipped ...
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125 views

SCP - The authenticity of host can't be established (But cant enter anything at prompt)

In windows 7 command prompt I enter: scp -W Scp\password.txt -P 22 xxxx@xxxx.xxxx.com:/home/xxxx/xxxx/xxxxxxx.csv After this I get the message: Do you want to trust this new host key and ...
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475 views

Why does youtube/chrome randomly resume play on paused video?

I have observed for a while now that if I leave a youtube page with a paused video, sometimes that video will randomly unpause by itself over a certain length of time (in the order of a few hours). ...
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205 views

Something “kills” my Apache-PHP-Processes after some time

I have the following really strange problem and hope, you guys can help me out. If there are any questions, I'll try answer them as best as i can. The problem I have a web server with Debian 6.0, ...
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489 views

Winbind not enumerating users and groups of trusted domain

I'm using Samba 4.1.6-Ubuntu in Ubuntu 14.04, for authenticating users from two domains with a one-way cross-forest trust between them. Samba machine is joined to DOMAINA, while DOMAINB is the trusted ...
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127 views

ConsoleKit reports active/is-local only on the second+ login

Running KDE Frameworks 5, Plasma 5, using sddm as a display manager. ConsoleKit and PAM-linux are both installed. Upon login (using the sddm login screen), ck-list-sessions returns FALSE for both ...
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85 views

custom GUI app in GNOME, desktop file & app menu

I made a custom QML app and a .desktop file for it: [Desktop Entry] Comment= Terminal=false Name=ProjectPad Exec=/home/emmanuel/home/projectpad/.cabal-sandbox/bin/projectpad Type=Application ...
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153 views

udev rule script “xinput --list” differs in terminal versus log

I'm trying to automate a Huion tablet calibration without much success. I have this output from xinput --list in a normal terminal: ⎡ Virtual core pointer id=2 [master ...
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51 views

How to configure interface for FPGA using Red Hawk SDR

I would like to start using the Red Hawk SDR with a custom data acquisition board, but the documentation does not seem clear enough on exactly how to interface with custom FPGA based hardware. Is ...
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0answers
54 views

Ugly LaTeX generated PDF on OS X

I have a book I am writing in TeX, which is nice, but I only recently realized how ugly my local TeX to PDF export looks: For reference, mine is on left, and a random Linux box that I have access ...
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623 views

Nohup doesn't work when executing script from Jenkins

I have bash script which executes following nohup ws --port 8080 & when executing that script directly on remote server and closing connection - process still exists. But when i am using ...
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103 views

How can I recover a partition after luksFormat?

How can I recover an ext4 partition after luksFormat? It was late one night when I decided to try gnome-shell 3.16 without messing up my Ubuntu box. So, I downloaded an Antergos image and booted it. ...
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68 views

udev rule to auto-execute script

I want to create a udev rule to execute when my headset gets plugged in. Therefore I followed this Tutorial, but my rule doesn't seem to work. The output of udevadm monitor --environment | fgrep ...
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483 views

Simplest way to setup my own remote private git server

First of all, I've read all the git-server-setup documents on the internet, but still, there is one thing missing -- I want to setup a simple GIT server in (Ubuntu) Virtual Machine for myself, not for ...
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49 views

USB 3.0 Trouble

I am using a WD Elements Portable 1TB USB 3.0 2.5" disk bought in May 2014 to backup data of my desktop machine. rsync runs smoothly without any error messages. However upon restoring data from the ...
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644 views

Ms office 2010 not working in fedora 22 in wine

i am new in Linux, Using fedora 22 beta. i have installed wine. Then installed ms office standard 2010 package. Everything was okay except the Ms power point.Then thought as we do in windows, i will ...
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91 views

netstat -o timer value “probe”

A bit of background on the scenario. I have a distributed application running on RH6.5 that uses JMS (OpenMQ 4.5.2) to send messages between hosts. One host (Host A) receives information from network ...
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326 views

Getting 4K@60Hz via ATI R9 290 display-port on Panasonic TC65-AX-800U

Hi I have an AMD R9 290 card, under linux, with the proprietary Catalyst 14.50.2 driver; the AMD Card only Has HDMI-1.x which can't do 4K@60Hz, but it does have display port which is capable of ...
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63 views

slow scroll in ssh connection after a while (why?)

Remote server with screen. After some time any command with a lots of lines of output causes significant scroll lag. It happens with different terminal emulators: konsole, xterm, lilyterm, ...
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202 views

Setting up Wi-Fi using USB adapter on Ubuntu 12.04

I have tried in vain to set up my Ubuntu 12.04 laptop as a Wi-Fi hotspot; it says Your wireless card does not support Access Point mode I had to resort to a USB Wi-Fi adapter, and I purchased ...
2
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0answers
152 views

crypto kernel module not avialable on linux 3.18.11 on Raspberry Pi 2

I'm trying to use dm-crypt on my Raspberry Pi 2 with Raspbian (debian) to open a trueCrypt volume, but i get Required kernel crypto interface not available. Ensure you have algif_skcipher kernel ...
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0answers
160 views

How to record video into circular buffer?

I want to build low cost IP camera with storage out of webcam, OpenWRT router and flash drive (or probably hard drive). It's not difficult to do, but I would like to store like last 24 hours, ...
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309 views

Setup default PHP version in Plesk 12

I've just setup a Plesk 12 CentOS6 vServer. I installed some PHP-versions like 5.4, 5.5 and 5.6. The customers can change the running PHP version in the interface. All is working fine, but I have one ...
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0answers
228 views

Why might a partition show up in `mount` but not `df`?

If I compare this $> sudo mount | grep sdb /dev/sdb1 on /windows type fuseblk (rw,nosuid,nodev,allow_other,default_permissions,blksize=4096) /dev/sdb2 on /store type ext4 (rw) with this $> ...
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245 views

How to limit the USB bandwidth a device can allocate on Linux

How do you put an cap on the amount of bandwidth a USB device can allocate on Linux? I have a couple of cheap USB webcams that I'm trying to running simeltaneously. Running v4l2-ctl ...
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90 views

Using Virtual Box to install Ubuntu Server 14.04 on an external hard drive

I'm trying to install Ubuntu 14.04 onto a server hard drive. The server machine I have only supports booting to CD/DVD, not USB. When I've tried burning the Ubuntu 14.04 installer to a DVD for ...
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126 views

Install ubuntu on ssd disk fail

I have just bought a SSD to update my old laptop. However I cannot install lubuntu on it, it stops and keeps repeating the same messages ata3: hard resetting link ata3: SATA link up 1,5 Gbps (SStatus ...
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232 views

Permission to execute denied for every file in /tmp:

When I try to execute any program from the /tmp directory, it shows me /tmp/file_name: Permission denied. The same error is shown when I simply enter /tmp. The file system for /tmp is ramfs. I've ...
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1k views

docker-machine behind corporate proxy

I've installed Machine (Docker tool), and I'm trying to learn how to use it by following the user guide. I'm running centOS 6.6 As I am working behind a company proxy, I exported some environnement ...
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2k views

Dumpper and Jumpstart for GNU/Linux

I try Reaver, but takes too long and not working for me. Dumpper and jumpstart in this article worked for me, is there any equivalent for GNU/Linux?