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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Sync with remote encrypted storage

I'm trying to keep a folder tree in sync between several computers. Currently, I'm using unison in a star topology, with a central remote server. I want the data on the server to be encrypted, so on ...
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Running Linpack on Linux High performance computer

I am trying to do some benchmarks on Linux HPC machine which specs are as following Total CPUs: 160 cores using latest 16C AMD Opteron Processors Total main memory: 640 GB of 1600MHz Total GPUs: 1024 ...
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Reconfigure downloaded firmware in Debian live CD

Is there any way to reconfigure the downloaded firmware in Debian live CD(Whezzy)?It might be possible if you have installed it on a hard disk because you just have to restart the computer while for a ...
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75 views

Displaying files and subdirectories

I am trying to do a Question in my Linux assignment but I can't find the proper command for it at all. please help me out. This is the question: Your current directory is sample_dir. Display all the ...
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41 views

installing ubuntu 14 on parallella board?

I've installed the images needed to start the parallella board and all is fine, however every time I use startx command, I only get the parallella logo and not the ubuntu desktop, any solutions? I ...
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xrandr showing cannot open display when used with parallella board and TV?

I'm using a parallella board with a HDMI hooked to a TV and some of the text is not showing on the side of the TV when running Linux. I tried using the xrandr to change the screen size and make it ...
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38 views

Java processes are choking ArchLinux on Wandboard; disconnects from SSH and gibberish in the log files

I’m facing a strange problem on my Wandboard where I’m running ArchLinux as a distribution. I’m running Oracle’s ARM JDK version 1.7.0_60-b19 and Java processes are choking. I’m suddenly not able to ...
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164 views

USB SuperSpeed device failed to peer?

My motherboard is a Mitac PD10BI which claims to have two usb controllers, one 2.0 and one 3.0. Whichever ports I plug into the usb devices all go onto the first controller and I get the 'not enough ...
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53 views

GNU Screen hardstatus string not highlighting active tabs correctly

Good Morning, The hardstatus line of my .screenrc file is acting weird on CentOS but works fine on Ubuntu Server. The line I am using is this: hardstatus string '%{= kB}[ %{B}%H %{= kB}]%{kB}[%= ...
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110 views

Can't open Trash: operation not supported

I messed up with some .h files some days ago and since then I have strange issues with my Linux Mint 17. I cannot open my Trash, I get an error saying something like "sorry could not display all the ...
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66 views

OpenVPN: SSL3_GET_SERVER_CERTIFICATE:certificate verify failed

Im trying to use vpn to connect two internal networks using virtual machines. I have a virtual machine "gateway" and a virtual machine "client", and I want to connect to my gateway from client using ...
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45 views

How to disable multitouch in Linux?

I have some systems where multitouch capabilities (eg. two finger contect menu, pinch zoom in Google Chrome) is disturbing. How can I disable multitouch on the system level (eg. Xorg conf or udev ...
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87 views

how unpack rar file?

i try unpack rar file: http://fias.nalog.ru/Public/Downloads/20150309/fias_dbf.rar (4+ gb), but get errors from every methods. i try unpack with unrar-free package, my command: unrar-free x ...
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129 views

Connecting through UVNC repeater

I have been working on finding a solution to connect a Windows VNC client to a Linux VNC server through a UVNC repeater. On an Ubuntu desktop I have x11vnc running and have been able to connect using ...
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50 views

Switch user after ssh login automatically

Current situation: AD infrastructure Local linux user xy runs an application. Several users log into the machine as xy via ssh. User xy is not used very often and for a short period of time. ...
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43 views

fail2ban regex syntax not working

Can you please help to block setup.php with fail2ban. Someone is trying to hack me with a lot of requests I have installed centos 6.5 #fail2ban-client -V Fail2Ban v0.8.14 jail.local ...
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91 views

How can I make a VirtualBox Guest read a SD card in the slot built-in to the laptop?

I’m running Kali Linux in VirtualBox. In order to plug in a device to the “Virtual USB Port”, you must select the “Devices” tab, hover over “USB Devices”, and select the device you require. However, I ...
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swremove doesn't work properly in HP-UX 11.31

I have one software package installed in HP-UX machine 11.31.I tried to de-install the package using swremove command. But it doesn't delete the directories under /opt/ my package. But this ...
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55 views

Fedora supports the intel power clamp driver?

I come from a Linux Mint OS distribution which had support for PowerClamp driver (it’s listed under /sys/class/thermal as a “cooling device”) but in Fedora 21 I can’t find the cooling device under ...
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26 views

Multiple clonezilla images availible for clients

Is it possible to setup SE so that when the client PXE boots, the image selection menu will list all available images. For example Image_A, Image_B and Image_C. So if I PXE boot System_B, I would ...
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8 views

need help in Varnish tuning

I am using Varnish for caching along with Apache. The CMS used is Wordpress. Initially the load time is good. It is decreasing consequently after 5-10 minutes. Restarting varnish again reduces the ...
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24 views

Accents not printed with CUPS

System Archlinux KDE CUPS 2.0.2-1 Printer HP Deskjet 3520 Description of the problem When I print something (I think it's always PDF) with some accentued characters, they are not printed. ...
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87 views

how do I establish whether Glassfish is ready or not to accept JMS connections?

Working from a sample producer, which uses gtools, and by changing the connection parameters from localhost to the ip address for doge: def jms = new ...
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72 views

How to run gnuradio3.7.3 built using cmake

I installed gnu radio from this site: http://gnuradio.org/redmine/news/35 i did it using cmake make make install this installation created 5 directories: bin, etc, include, lib, share And ...
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26 views

how to mount additively on linux

I have been trying to mount directories in linux additively and fail to do so. I have three directrories a, b and c. a contains file x, b contains file y and c contains file z. Now when i mount "a" ...
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showing memory transactions as Bps in Linux

Is there a Linux tool that shows the memory transactions as Bps (BYTE/sec)? Not the memory usage as which process allocates how much virtual address. But the memory bandwidth that which process uses ...
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42 views

Build DAHDI for Beagleboneblack Error

I'm planning to build DAHDI for Beagleboneblack Firstly, I built the kernel for BBB completely by following this tutorial http://elinux.org/Building_BBB_Kernel make ARCH=arm ...
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20 views

Bluehost, Zero Support VPS php.ini not finding pdo. Although

If I load that same php.ini file into my site directory. Everything works fine. When that same php.ini file is loaded in my server. PDO doesn't work? Any thoughts on this. I've tried contacting ...
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14 views

Scientific Linux 5.5 hangs at the beginning

We are taking theses days a parallel processing course in college, we are working on scientific linux 5.5 version with MPI, I just imported .ova on the virtual box but unfortunately when am trying to ...
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97 views

Virtualbox bridged networking on OVH server

I can't get that working even thou I configured it few times on other machines. Probably it's problem with something ovh-specific, or maybe I just twisted myself hard enough by now. Clean install of ...
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88 views

How to force software master volume control in PulseAudio?

I have a sound card lacking hardware volume control (Creative Sound Blaster X-Fi Surround 5.1 connected on USB). Yet PulseAudio seems to think it does have hardware volume control. When I adjust the ...
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22 views

How to find out why a Java process is stopping

I am running a website using Spring Boot. Every now and then the process just stops. I don't know where to begin trying to find out why it's crashing? I've added the flag to perform a heap dump on ...
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18 views

Mac OS X Ad-Hoc Network Certificate

I was wondering if on a Mac with the built in "Create Network" feature, to make the client (which will always be an iOS device) accept a .cer file before joining the network. I know some professional ...
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120 views

Samsung Chromebook series 3 sudo password

I cannot for the life of me find the sudo password for my chromebook. I have it in dev mode on Chrome OS 41. I want to install Arch Linux ARM onto an SD card but the instructions here ...
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26 views

How can I allow users to write an image to a SD Card via dd?

With dd if=myimage of=/dev/sdb root can write an image to an SD card. How can I allow users to do this?
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ImportError: liblapack.so.3gf: cannot open shared object file: Input/output error

I am importing numpy into python on Ubuntu 12.04 using a PCDuino3. For some odd reason, several of my links in the /etc/alternatives/ go bad after running my code. When I type ls -l in ...
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Can having both stable and testing repositories in Debian mess up the system?

I have Debian running in my Rapberry Pi and I needed a package which was outdated in stable, so I simply added the testing repository to my /etc/apt/sources.list. When I did an apt-get upgrade today a ...
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14 views

Buiding and Installing Python Module

I am having the following issue and am not sure how to fix. I do not know what linking is but I hear it's related to the problem. I'm trying to set up a python module: First I call in the directory ...
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36 views

rsyslog loses messages from firewall

I am trying to make rsyslog to log messages from iptables MASQUERADE. I have iptables LOG rule in nat table and PREROUTING chain before the MASQUERADE rules. The actual iptables rules: iptables -t ...
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137 views

linux - Burn bootable dvd

I try to burn a bootable dvd for linux mint mate 17.1. I tried 3 tools: Braseo (ubuntu/mint) windows disk image burner (win7) Nero (a tool for windows) Only the image burned by Nero succeed to ...
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75 views

Note: further occurrences of Parameter errors will be logged at DEBUG level Apache tomcat, How do I keep getting these?

I'm running tomcat 6, and I get a warning ONCE, follow with that note, Note: further occurrences of Parameter errors will be logged at DEBUG level, But they aren't logged anywhere, or at least I ...
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41 views

Raspbian - Brother DCP195c Printer with CUPS, insecure permissions

Hello I already read the thread: Debian ARM and Brother DCP195C with CUPS And did the steps exactly as they were described. But the error message I am getting is completly different: Idle - "File ...
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130 views

Ssh chronos@localhost without ALWAYS having developer mode on

I have an older samsung chromebook that I use for schoolwork, and I like having access to its root, but the problem is that my roommates also use the chromebook and do not know how to get around the ...
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144 views

Error: EMFILE, too many open files - Solution?

I'm getting this error, my server has a lot of visitor now. My Vps is 4 Gb ram with 4 Cpu. Should I move to bigger server for solution? Because ulimit -n 10000 not working.
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55 views

Is my system rebooting cleanly by itself? Interpreting output of the 'last -x' command

My Ubuntu 12.04 sometimes reboots by itself, and I'm trying to debug what is causing it. I can't seem to find anything relevant in the logs, so this indicates it might be a hardware issue. However, ...
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19 views

Change font in terminal on remote connection in Konsole

Is it possible to set Konsole terminal to change font color on remote connection? For example, depending on computer's name?
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show “effect” of nmcli r wifi off as airplane mode in KNetworkManager GUI (plane checkbox ticked)

my ultimate aim is to put a shortcut on my keyboard which enables/disables the airplane mode of my wifi. I spent a couple of hours to figure out how to realize this by an nmcli command which does not ...
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Assistance remembering the name of a Linux “strace”-based tool for file paths mocking

Once surfing the Internet I’ve seen a home page for a Linux tool which claims it can employ Linux systrace interface to execute other programs with manipulated paths. Something like that: $ ...
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23 views

The “gmon.out” file is at everywhere

Every time I run a program, or exit a shell. There will be a "gmon.out" file generated at the working directory. How to stop this behavior?
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37 views

Unable to type in Putty after a few minutes of inactivity?

For some reason I am unable to type in Putty when connecting to a remote CentOS server, after a few minutes of inactivity. It appears the prompt is disabled and can't be clicked or typed on. I ...