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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Is there any limit on number of file name we can pass in tar

I am creating a tar and untar it at other location using: $ tar -C sourcedir -cf - . | tar -C targetdir -xpf - but it fails like thisError I am getting is :Argument list too long - tar, when I am ...
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2answers
72 views

How to passthrough Wifi DNS and interenet access to DHCP client

I have a laptop that connects to wifi for internet access. This computer is running Linux (Fedora), and it is acting as a DHCP server for another (ubuntu linaro) computer that does not have a wifi ...
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1answer
40 views

Erase hard drive while booted [on hold]

So there is this machine which I want to erase, but I can't boot a live environment. It is a physical machine, not a virtual machine. I though about stopping all services and remounting / read-only ...
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3answers
50 views

To whom do environment variables belong?

From several websites I read that getenv is a system call. However I cannot find any reference to sys_getenv. I am trying to understand what "environment variables" are, exactly. Are they part of ...
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1answer
59 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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2answers
788 views

Firefox thinks I'm using and older Flash version

I'm running Firefox 35.0 on Fedora 20. It has the current latest Adobe Flash version (11.2.202.440). Firefox is blocking Flash and displaying an alert bar, claiming it is outdated: In English: ...
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1answer
2k views

How to send Windows key over VNC to Linux from Windows?

Alright, so I'm running Linux with AwesomeWM on my home machine. I'm running x11vnc on that machine and I want to connect to it from a windows machine. So it suffices to say that I need the Windows ...
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0answers
9 views

What is the page replacement policy in KVM?

I found this picture explaining how Disk I/O is done in KVM. A the image is on http://i.stack.imgur.com/ijd8m.png So, does it use shadow page table or makes two copies of the page when a page ...
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3answers
2k views

ALSA - no surround playback with mplayer

When I run: speaker-test -c6 ...everything is fine. I get 5.1 playback. However, when I run: mplayer -channels 6 "some video with 5.1 audio" no audio plays. Here is what appears in the ...
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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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1answer
27 views

In CentOS 6.6 yum update show some dependency error

When I update centos package it (sudo yum update). It shows following error like. Error: Package: 1:control-center-2.28.1-39.el6.x86_64 (@server1) Requires: libgnome-desktop-2.so.11()(64bit) ...
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1answer
75 views

Saltstack best practices documentation clarification

To be clear, I am not asking for the "best way" to use saltstack. I understand that there are tons of ways to use saltstack, and what works for you, works. My question is specifically about the best ...
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1answer
57 views

How to find what is pegging CPU in linux kernel

The node of our hadoop cluster is running redhat5.3 2.6.18-194.17.4. (a old kernel version). We found some hosts are under 100% CPU utilization and specially all the CPU cores are on 100% sy% top ...
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2answers
121 views

Sudo usermod -a -G is totally ineffective

Really simple, I run the following in Ubuntu 14.04 Server, logged in as max: sudo usermod -a -G www-data max When I run groups as max after doing so, www-data is not in the output set of groups. ...
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1answer
26 views

How does systemctl schedule system shutdown?

When I type shutdown -h +30, Linux somehow schedules runlevel's change within 30 minutes. On Debian, /sbin/shutdown is symbolic link to /bin/systemctl. My tests indicate that shutdown does not use ...
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0answers
9 views

How can I install upwork time tracker in CentOS release 6.6 (Final)

I didn't find good docs about how I can install upwork on Centos6.6 Is it possible ? I didn't find yum-plugin-copr for centos (I have find only documentation for Fedora)
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2answers
35 views

Symbolic link on a USB stick automatically adding extra characters upon opening

I'm trying to create a relative symbolic link to an html file. Both the symbolic link and the file are to be stored on a USB stick (i want it to open on any computer). I successfully created the ...
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3answers
48 views

Recovering filesystem in mangled partition

Accidentally booted the Acer Recovery partition of my multi-boot laptop and despite selecting EXIT when presented with a choice of whether I wanted to recover anything or not, one of my partitions got ...
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3answers
2k views

Is it possible to configure Kde 4 to resize windows to half desktop size when moved to the side of the screen?

In Windows 7 You can drag a window to the edge of the screen (the mouse pointer must touch the edge), windows offers you to resize the window to exactly half of the screen size. This is actually very ...
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2answers
24 views

Controlling output in a Linux shell script

When I run a shell script in bash, I push everything to a file as follows: ./script.sh >results.txt Some of the commands in my script output to the terminal, rather than the text file. For example, ...
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2answers
18 views

How to find IP address of ADSL modem?

Our fall back Internet connection uses a SpeedStream 4100 modem, which just broke, so I have replaced it with a new one. I need to configure it to bridge mode, but I can't even find its IP address. ...
140
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8answers
151k views

How to check which apache modules are enabled/installed?

which is the most elegant way to check which apache modules are enabled?
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9answers
40k views

Flow chart software for Linux? [closed]

Been using Visio at work to do flowcharts, and I'm liking how easy it is to do overall, notably creating and linking shapes. I'm trying to find something for Linux that works the same way, or at ...
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1answer
48 views

FFmpeg editing video on the fly

I am trying to make loop video on Android tablet which has ubuntu 15.04 installed in chroot. There are ffmpeg and all Linux tools are available. The problem that I have very limited space and ffmpeg ...
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0answers
20 views

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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1answer
29 views

Cannot boot ISO on only one machine

I have a version of Ubuntu 14 on DVD and USB to boot from. This ISO boots from other machines via both DVD and USB, but it will not boot on the particular Dell I need it to. Initialization crashes ...
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0answers
17 views

How to bring a process to background and foreground programatically? [migrated]

I am working on a project which involves creating two processes using fork. And the task was to put the child process in background on demand basis. I handled signal handler (CTRL+Z) in parent. And I ...
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1answer
363 views

How to enable entering username in Zorin OS

I have joined my zorin os (v8) to a domain. But I can not find how to enable entering usernames on the logon screen. How do you enable this feature?
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1answer
2k views

How to fix Ubuntu 10.10 black screen from terminal?

I'm trying to install Ubuntu Desktop 10.10 on an Intel Atom mainboard (Intel D945GCLF2) with CRT that has been running Ubuntu 9.x previously. Both, Desktop live CD / installer and alternate install CD ...
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0answers
31 views

Can not write to serial port on boot

I am writing a script that sends a configuration message over serial port. It is supposed to configure an external device and runs on boot. Main part of the script is the echo command that sends a ...
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2answers
19 views

Accessing file in home directory from apache

After searching a lot I am asking my question here. I have an image file in my /home/uploads/images/filename.jpg which I am tryin to access in browser like ...
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1answer
33 views

Connecting to my SSID force opening a browser window. How?

I'm aiming my clients to get a popup/browser display once they connect my Wifi. Currently it s running with HostAPD. You see my SSID in available wifi, no password. Access only to my local web. No ...
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1answer
943 views

Stuck on “Preparing automatic repair” loop windows 10

Just a few hours ago I was installing an update for Windows 10 and then it started turning on and off. I let it do it's thing for a while until I found it odd that it would do it so much. When I ...
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0answers
30 views

PCI passthrough KVM

I am trying to passthrough my Tesla K40m GPU accelerator to a qemu-kvm virtual machine via the VFIO driver on Ubuntu 14.04.2. I downloaded all drivers and CUDA libraries, and I compiled all sample ...
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2answers
4k views

Connect to samba server remotely

I have a Samba server say at "abstergo.m12.in" I'm fairly new to Samba as I usually use SFTP for file transfers but I wanted something more Windows Native. I used the samba config from ...
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0answers
27 views

How to develop a software for folder locking in both Windows and Linux? [on hold]

I know for folder locking we can ecrypt a folder using winzip or winrar and it will work for both windows and linux. It is slightly tedious task. I want to make a software which will work for both ...
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0answers
7 views

How to make use of mschapv2 authentication in freeradius setup?

Can anyone suggest, what are all the configuration changes, i need to do to make use of mschapv2 authentication for password?
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3answers
62 views

Why is router IP not listed in ifconfig?

I am looking for the address that I type into my browser to get to the router configuration file. It ended up being 192.168.1.1, as usual. But when I enter ifconfig into the command line, this IP ...
0
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1answer
4k views

ubuntu 13,10 “Failed to download repository information”

I have ubuntu 13.10- 64 bit version on my machine.recently i tried to install postgres for ROR development but i couldn't complete the postgres installation and found that my update manager always ...
105
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6answers
215k views

How to decompress a .bz2 file

I have a file as: filename.bz2, but I can't figure out how to decompress it. I tried several methods, none of them seems work. I have tried the command: tar xvjf filename.tar.bz2, but it didn't work ...
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votes
2answers
919 views

oxps to pdf or image - Linux

I've been trying to solve the problem of converting an .oxps file to .pdf or other file format. Any solutions for Linux out there? I've been searching around and cannot come up with much thus far. ...
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3answers
4k views

Remove files recursively in Linux

How to remove all the .pyc files recursively from a certain directory including sub-directories? I tried $rm -f *.pyc This seems to work for only the current directory, but not the directories ...
3
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3answers
5k views

Unable to use cloned VM, OpenSUSE, VirtualBox

I've cloned a VM and now while booting it I see a message: Trying manual resume from /dev/sda1 Invoking userspace resume from /dev/sda1 resume: libgcrypt version: 1.5.0 Trying manual resume from ...
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0answers
8 views

LenovoT440 Debian f1-f12 keys not functioning LXDE

Hello I am running Debian 8.1 Jessie on a LenovoT440 Thinkpad, everything seems to be working fine except the f1-f12 keys, which serve functions like mute, adjust volume, mic off, dim screen wifi off, ...
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1answer
32 views

Do I need to worry about over-provisioning? Can swap be used for this purpose if it is not being used?

I am running Linux Mint 17. I'm posting this on Superuser rather than Unix & Linux because this probably isn't a Linux-specific question. I was thinking of buying a SSD but a ~250GB drive will be ...
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1answer
18 views

Secure dnsmasq dns daemon with whitelist

I'm using dnsmasq on a server (bound to wan IP) and would like to add an acl/whitelist for ip ranges/ip address allowed to resolve dns using my server. I can't seem to find anything from Google, is ...
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1answer
20 views

How to debug old init.d script under systemd?

I can't get any output from the script. systemd just prints: sinopia.service: control process exited, code=exited status=203 Failed to start LSB: starts the sinopia web server. I can't even launch ...
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3answers
3k views

Unable to connect to samba shared folder via windows

im new to linux and Samba. Aim Create a called Shared_folder which can be accessed by ALL users (group name = users). Therefore, in order to map the drive in windows, the user is promoted to enter ...
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1answer
27 views

How to use linux to not get crazy with root privileges

I've got a question for you today my dear Linux friends. I'm a windows user primarily. I use it for my work, watching movies, listening to music, playing games, browsing the net and everything else ...
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2answers
6k views

How to make a desktop icon on centos 7?

I am new to Linux and this may sound very dumb but I need to make a desktop icon on centos 7 but I don't know how to do it. I tried googling but I can't even find Launcher. Need help