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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Configuring boot on Tails linux

I put a Tails Linux 1.1 livecd on usb drive and cloned it to another flash drive. Then I've created a persistent volume and it works. But I have to choose settings, language and set up a new root ...
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Recovering files in specific directory deleted after a specific time in Linux exf4

I got myself into a pickle earlier, and wanted to share my story in case it helps anybody. There is a question as well. I spent most of the day reworking a Rails app to internationalize it as a ...
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1answer
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How to distill / rasterize a PDF in Linux

We have a printer at our office that prints PDF files from a USB stick. It prints most files okay, but it has problems with some, especially ones generated with Latex. Some PDFs it simply refuses to ...
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Is it possible to get two IPv6 networks to communicate over IPv4 Internet in this case?

I have a setup of a laptop connected to a cellular IPv4 network (3G usb dongle) and PC connected to another IPv4/IPv6 network. Both have been configured to run as IPv6 routers and each has its IPv6 ...
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Power user switching between Windows, Linux, and OSX - Need easier way to map Keyboard

Alright, I know this question has similar questions. I went ahead and copied some below. I am not interested in why I should learn Mac instead of Windows nor how to remap keys (It doesn't work very ...
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2answers
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Extracting a *.tar.bz2 file?

I always used to use this command to extract files from a bzip2 tar ball: tar xjvf file.tar.bz2 But right now on Ubuntu 14.04, I get this error: tar: Conflicting compression options Try 'tar ...
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recovering overwritten file in ubuntu 12.0.4 [on hold]

I recently just overwrote one of my sql dump file by doing the following command: mysqldump -u root -pTucson85719@ Directory > directory.sql is it possible to get back the file that is being ...
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9 views

Graphic driver for Targa Now NT9231

I thought of installing Xubuntu on my elder Targa Now nettop and didn't think about the driver option. So now I'm here with a fresh Xubuntu installation and looking for graphic drivers. I found ...
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23 views

Change to different user, or let different user execute a command

I have a problem. There is a server which I can access with an account by ssh, lets say WG. Now there is a folder with the following permissions. drwxr-s---+ 855 vvz www-data 20K Aug 21 17:56 ...
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23 views

why is my sort slower with more ram?

System specs below. I recently purchased 2X4 RAM: Corsair XMS3 8 GB (2 x 4GB) 1333 MHz PC3-10666 240-Pin DDR3 Memory Kit CMX8GX3M2A1333C9 I already had 2X2 in there for a total of 12GB: Corsair ...
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15 views

How to recover Windows Boot Manager after a Mint installation gone wrong

Yesterday, my cousin wanted me to install Linux Mint onto his Windows 8 Lenovo laptop so he could dual-boot Linux Mint and Windows 8 so he could get some hands-on experience with Windows 8. I've ...
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2answers
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How to give '>' as parameter to terminal in python

I was wondering if you could help me with a problem: in python I've been trying to give '>' to the subprocess.Popen([]) or subprocess.call([]), but somehow it changes the way it is entered in the ...
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9 views

Why does top and Google Compute Engine give me two totally seperate cpu % values?

So to preface this, I haven't done much in Linux since a decade ago when I was in college, so I may just be doing something stupid. However, for this project I am working on I'm performing a load ...
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26 views

Control CPU fan speed when mainboard only has 3-pin connector?

My CPU cooler has a 4-pin connector and its fan speed can be controlled but my motherboard only has a 3-pin connector. There's no options to control cpu fan speed in BIOS. Is there another way? I'm ...
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23 views

Meaning of Bridge-Check in iptables flowchart

In the famous iptables flow-chart what does bridge-check exactly stands for ? I couldn't find any documentation. The only clue I found was while scanning the MikroTik RouterOS documentation ( ...
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0answers
5 views

Setting channel width with rt2870: iw: Device or resource busy (-16)

I only now found out that my USB WiFi stick is capable of n-WiFi (Edimax EW-7711USn), so naturally, I'd like to get the highest possible speed from it. My link is great, 29dbM and 70/70 quality, but ...
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Reserve fixed RAM memory region as a block device ( with a given start physical address)

There have been a lot of questions about RAM Disks and I am aware of ramfs and tmpfs which allow the use of ram as a block device. However my interest is in using a fixed memory address range as a ...
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1answer
28 views

Replace Microsoft AD with samba4?

I want to know if windows machines that exists in a domain can be replaced with linux machines and emulate the domain with its functionality, for example apply group policy or disable USB sticks on ...
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14 views

Moving software RAID to Linux

I'm using a RAID 1 (mirrored pair) configuration in my Media Center/ NAS system. Currently it's running Windows 8 (yeah, big mistake I know) and I'm regretting it (did it for the games, not worth it). ...
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14 views

Passive mode FTP file download hangs from specific machine

I have a server which is an AWS instance that just cannot download files from a specific FTP server. I can connect to the FTP server fine and run some commands, but when I request a file it just ...
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1answer
34 views

Most secure way to have IPtables auto-loaded using Debian / Linux

I'd like to know the safest way to load iptables using Debian. Of course, I can use a script that uses iptables-restore : #!/bin/sh iptables-restore < /etc/firewall.conf but : 1) where is the ...
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1 views

rox-filer hangs on listxattr when NFS is concerned

Since very recently, rox-filer hangs for me as soon as it is supposed to display a directory where a NFS is mounted. strace rox-filer -n shows the following: [snip] ...
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1answer
15 views

Start Chrome by command line, but adding some arguments to make it login into your Google account automatically

Is there a way to start Chrome calling it from the command line (using Linux), but providing it some argument to make it login into some Google account automatically? I'm looking for something like ...
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1answer
13 views

Controlling Multiple Instances of VLC etc. by a “Unified” Hotkey Command

I wish to invite suggestions regarding if and how is the following achievable: controlling multiple instances of a media player (say VLC) by one "unified" hot-key command. eg. Pressing spacebar would ...
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1answer
20 views

Linux DNS Multi tenant

I need to setup a multi-tenant DNS solution in Linux DNS Server. Currently I serve multiple companies: Company ABC, Company XYZ, etc... I need to create Forwarder zone Reverse Forward Zone I ...
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25 views

Why isn't “(ulimit -d 1000; firefox) &” working?

I'm trying to limit the memory usage of firefox to prevent it from stalling the whole system with problematic web sites. I tried, in bash: (ulimit -d 1000; firefox) & This should limit the ...
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1answer
14 views

Unable to set rw permissions on a folder, changing usergroups on user

I got a RAID mounted as /mnt/NAS. In this mount I got a folder called /mnt/nas/rec. The mount is shared with SAMBA, and guest users are assigned as the user nobody and are tied to the group nogroup, ...
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26 views

How to change Linux hot key

I would like to know if it is possible to change the hot key on a Linux distribution. I have already tried to re-configure the hot keys in the virtual box preferences but i have not been able to ...
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22 views

Is it possible to know a user logged in on Ubuntu instantly?

In fact, I am trying to restrict access to some websites for different users. I asked the question: Restrict access to some websites for different users. The given answer is ok; but as the owner ...
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0answers
16 views

Pairing Bluetooth device with PIN fails

I'm trying to pair my old BlackBerry 8310 to my Linux desktop (up-to-date Debian Sid, 3.15-10.dmz.1-liquorix-amd64) by using blueman and its associated tools. Scanning for the device works equally ...
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22 views

configure: error: Unable to locate gmp.h

Per http://stackoverflow.com/a/19894267/569976 I tried the following to no avail: ln -s /usr/include/x86_64-linux-gnu/gmp.h /usr/include/gmp.h --with-gmp=/usr/include/x86_64-linux-gnu Both of them ...
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1answer
27 views

locate doesn't find all the files it should

I type in locate gmp.h at the prompt and get the following: /usr/src/linux-headers-3.13.0-24/include/linux/igmp.h /usr/src/linux-headers-3.13.0-24/include/uapi/linux/igmp.h ...
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32 views

Why is much paid software not for Linux? [on hold]

Why is so much paid software not supported for Linux? I pay this company money so why they don't make a version for Linux? Is it to complicated?
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Cant login to SVN server

I have a SVN server on my Raspberry Pi (Raspbian). It has a project under the directory /welcome, I want to add users to it. My users would be admin with password admin and user2 with password ...
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25 views

What is fastest way to backup a disk image over LAN?

Sometimes I boot sysrescd or a similar live linux on a PC to backup the hardrive over local network to my server. I noticed many times, that the transfer speed is not optimal (slower than HDD and ...
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22 views

How to add EFI entry by efibootmgr?

I installed stand alone Ubuntu on my laptop by formatting the HDD. Now HDD is not in my EFI menu. From a Live USB environment, I added the EFI entry, even by chroot. However, the EFI menu is reset to ...
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25 views

AMD A10 7700K + ATI Radeon HD 6850 with 6 Monitors

I'm running a workstation with (hopefully) 6 montiors under LM17 Cínnamon, 64-bit. The AMD ATI Radeon HD 6850 comes with 2x DVI, HDMI and DP to connect to 4 displays. Which work fine under the ...
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I wanna load CentOS 6.4 kernel of machine 1 in machine 2 on vmware. I receive “UNABLE TO GATHER EFI DATA”. How is it that users give /boot/? [on hold]

It is about using kexec and load new kernel. How is it that users give /boot/ address instead of address of new boot (like /boot2) directory? I don't want to reload the old kernel. Thanks!
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Send sleep/wake command via displayport to computer

Is it possible for windows or linux based system to check if displayport display has been turned off/on and react accordingly to sleep/wake/shutdown/start system?
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22 views

A good Linux terminal with automatical session restoring? [on hold]

I installed Ubuntu 14.04 (with Cinnamon) for working. But I really miss MacOS-style terminal which would store the opened tabs and paths. What I need from the program is the ability to save all opened ...
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0answers
15 views

“Autoscroll” Pdfs one by one from a “play-list”/directory

Is there a way to achieve this: open multiple .pdf from a "playlist"/given directory one by one in the same window, with auto-scrolling enabled? (Explanation: 1st pdf opens- autoscrolls to the end- ...
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0answers
16 views

Difference between logical volume and physical volume

These are various terms used in Storage virtualization which can be very confusing as to their hierarchies and meaning. Please explain each of the following terms and the difference between them if ...
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0answers
10 views

How to delete a user from its private group?

I have tried deleting a user from its private group using the command " #gpasswd -d ". It is showing like this "Removing user test2 from group test2" gpasswd: user 'test2' is not a member of ...
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6 views

SSL23_WRITE:ssl handshake failure:s23_lib.c:177

When attempting to connect to an xmpp server over SSL, openssl fails with the following error: 3071833836:error:140790E5:SSL routines:SSL23_WRITE:ssl handshake failure:s23_lib.c:177 I believe that ...
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1answer
20 views

Do I have to export public GPG keys as well when exporting pribate ones?

I created my Gpg keys. it shows up in my keys repo. Now I want to export my secret key and import it into another computer so I could use it on that computer (for example my laptop). Do I have to ...
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2answers
45 views

In bash, how I define a “command scope” variable?

I'm reading this book on the bash architecture and one of the bash maintainers says: There are different variable scopes for shell function calls and temporary scopes for variables set by ...
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20 views

GTK+ Theme and Cursor Theme stopped working

Parts of my installed themes have stopped working. I'm not entirely sure why at this point. I know I've installed numerous things which led up to realizing certain theme elements were broken, and ...
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3 views

Output port redirect with firewalld?

I'm used to iptables and I can't find a way to do this with firewalld. I need to redirect the output traffic of one port back inside in the same port, basically this: iptables -t nat -A OUTPUT -p tcp ...
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0answers
16 views

Touchscreen on KDE and Ubuntu?

I just bought a Lenovo Yoga 2 Pro... I liked the activity of the touchscreen on Windows, and it makes sense as it does on my smart phone. However, I'm not a regular windows user, so I installed ...
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Avconv doesn't copy audio stream

I am trying to restream m3u8 link to my local rtmp server like this: avconv -i "http://mthls-i.akamaihd.net/hls/live/219508/mthls/06.m3u8" -c:v copy -c:a copy -f flv rtmp://127.0.0.1:1944/live10 ...