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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3G USB modem switches back to storage mode after connection is lost

I configured a 3G USB modem (Novatel Wireless U679 (Ovation MC679)) on a Raspberry Pi running Raspian OS. To switch the modem from storage mode (1410:5059) to modem mode (1410:7031), I use the ...
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293 views

Apache fails to start with TLSv1 disabled and does not recognize TLSv1.1 and TLSv1.2

I'm having issues trying to disable TLS 1.0 on apache as described here: http://httpd.apache.org/docs/2.2/mod/mod_ssl.html#sslprotocol $ apache2 -v Server version: Apache/2.2.22 (Ubuntu) Server ...
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48 views

Accessing Web UI with Spark1.3.1

I am currently building and deploying spark with standalone mode, including one master node and two worker nodes, on Google Container Cluster. For monitoring purpose (also connecting to master from ...
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3k views

Converting .qcow2 V Hard Disk into .VMDK (Windows/VMWare)

Is any way to convert a .qcow2 into .vmdk on Windows 7 64-bit using VMWare Workstation? i did that using a tool qemu-img in my linux host (SLES11): qemu-img convert -f qcow2 vdisk.qcow2 -O vmdk ...
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146 views

Getting nginx 404 error on uploaded files

I am using PHP (5.3) to upload jpeg files, create folders for those files and store them. I have a development version and a live version both running on the same server (CentOS 7, Apache, Plesk 12). ...
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49 views

Multi hop SSH with certificate on bastion server

I have this situtation: my local machine a login server (with token implementation) a set of machines accessible only with another authentication from login server (token implementation too) this ...
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98 views

Mumble-Ruby openssl error when running scripts

First things first here are the instructions I am working off and system details: http://wiki.natenom.com/w/Mumble-Ruby_installation and this is for SuperBot a mumble ruby plugin. This is running ...
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23 views

Make OpenVPN Accessible from outside the network

I'm trying to get openvpn working on my centos machine but I'm having some issues and I don't really know much about openvpn. I've managed to get it working and I can connect to it with another ...
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120 views

Destination host unreachable

An user reports issues with wwan0 interface. 4: wwan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 02:fa:a8:34:86:69 brd ff:ff:ff:ff:ff:ff ...
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311 views

How do I use an Ext4 partition from Windows with correct file permissions for Linux?

I use Windows 7 and ext2fsd to access a data partition which uses ext4 as mentioned here, here and here. I can read and write from Windows. When I boot into Linux, it is able to read the files but ...
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72 views

Arch Linux chroot cannot mount sysfs

I am running in a chroot with Arch Linux. It is efficient. I can start the session and also was able to do pacman -Syu. My problem is, I cannot do any pacman activities now more. It says I should do ...
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105 views

Can't use Portable Hard Drive formatted under linux with Windows

I hope you can help me, I have this two 2.5" hard drives (250 and 500GB, respectively) that I put inside Acteck USB 2.0 drive cases and formatted them under linux, creating a new GPT partition table ...
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110 views

How to get RUFUSLDR to load from Grub2 on USB

Well last week i came across a few issues with my old Acer One notebook and so i would like to install Windows XP on it. Current Tools and Software at my disposal are: 64Gb PNY USB Flash Drive Kali ...
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26 views

hp probook g1 WIFI not working in Kali

I have installed Kali linux on my hp probook g1 but I have a problem in wifi while its working correctly on windows any body can help ? thanx in advance
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89 views

Persistent USB Kali Linux Standart User

Is there a way to add standart users in Kali USB? I'm getting this in the console: useradd: existing lock file /etc/passwd.lock without a PID useradd: cannot lock /etc/passwd; try again ...
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48 views

how to download and install outdated linux-headers

I just watched the issue concerning how to add additional driver (module) into pre-compiled kernel; I tried to install the linux-headers but in the current repository I could find that all the ...
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383 views

Signature not found in user keyring

I have encrypted /home/username and after some time I changed user password which leads to error on login ""signature not found in user keyring perhaps try the interactive 'ecryptfs-mount-private'". I ...
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50 views

How to connect to VPN from Linux and send only part of traffic via it

I have target host, username and password. I can connect in Windows via Cisco AnyConnect. But all traffic goes via that tunnel. Under Linux I used to use Vpnc, but it requires also additional secure ...
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141 views

Pipe remote jpg webcam image to ffmpeg as video

I have a cheap ip webcam. All it provides is a single http url to a static jpg file. Such as http:///image.jpg. Repeatedly requesting the same url will provide subsequent frames from the ip camera. ...
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20 views

Switch from linux user to administrator; how to setup and maintain identical installations

I recently installed Linux on my computer at university. I do have Linux on my laptop and in the near future on my workstation. Additionally some of my colleagues who are doing similar computations ...
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105 views

How to use Windows Libre office Macro In Linux environment

I have some macro which I have made in libre office by window 7 Now I want to run those macro in Linux system through some kind of command Now issue is that How can I save Macro in a single file..? ...
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56 views

DDRescue locks system up on disk clone

I have ddrescue running on the latest version of Fedora trying to clone a dying IDE disk. When I run ddrescue --no-split /dev/sdb imagefile logfile the copy will happen then the entire system will ...
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296 views

Ubuntu 14.04 LTS corrupt microSD - manual recovery?

i have a corrupt microSD card from a colleague. He asked me to save his data if possible. I use a recent usb-multi-cardreader. The microSD is a high capacity card with 32gb of space. I suspect it to ...
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194 views

rsync is missing files

I'm trying to get rsync working between Win7/cygwin source and CentOS 7 VM destination. My command: rsync --dry-run -r -a -v -i -h -x --ignore-times --checksum --progress --delete --delete-before ...
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89 views

VPN between a Server, a Raspberry Pi and a Smartphone

here's the problem I'm facing. I want to connect with a client (eg. smartphone via mobile network) to my server (which is connected via vpn to my rapsberry at home) so that I can access my home ...
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111 views

Raspberry pi: No internet access

I am trying to get internet connection at my university. I have enabled sharing on my wifi settings and connected to the raspberry pi VIA ethernet connection. The IP used for ethernet connection is: ...
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60 views

External USB disks and logical sector size

I have a WD Green 3.0TB in an external USB enclosure. I wanted to replace the disk with a Green 6.0TB. The USB enclosure is usually connected to a device that only understands FAT32 and MBR, so ...
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240 views

Unable to start libre office from terminal

I need to start libre offices impress via SSH on various raspberry pies, each displaying a set of slides on its own screen. Now my problem is that, when I run loimpress --show file.odp it states ...
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148 views

In mc within tmux ctrl-o doesn't work

When I run mc within tmux: $ tmux $ mc 'Ctrl-o' in mc desn't work properly: mc panes disappear, but the shell command prompt doesn't appear, and pressing any key causes mc panes appear again. When ...
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1k views

Can't login to KDE or Gnome via SDDM after Ubuntu upgrade to 15.04

I just upgraded Kubuntu to 15.04. When I get to the SDDM graphical login screen, after my password is accepted, I get the KDE splash screen with a loading progress bar, then it blacks out at about 75% ...
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53 views

I can't press right click and icons disappeared on RHEL6

I'm only left with the desktop. When I right click, I get no response. Another problem is that there's no menus or icons. When I try to open Nautilus it doesn't start. When I tried to open it from ...
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161 views

Bluedevil wizard starts on KDE startup

Bluedevil wizard (3 copies) starts on each boot after KDE start. There are no bluetooth devices near PC or smth. Why and how to fix?
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1k views

How to upgrade xrandr in ubuntu 14.04?

While trying to change resolution in VNC using: xrandr --fb 1440x900 I get the following error: xrandr: Server RandR version before 1.2 trying to "apt-get" it, the result suggests to install ...
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115 views

SSH login too slow in Centos 6.6

SSH login take too much time in my CentOS machine, and also a ftp server is running on it. Please help me to speedup the login time for both root and ftp user. I tried some tricks but no ...
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224 views

How can I allow Windows RDP ports with socat?

192.168.0.21 is a Windows 8.1 PC running RDP. Using Linux I am running socat as below, but cannot connect on port 5900 to 3389. How do I make TCP and UDP traffic on 5900 go to 3389? socat ...
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27 views

Folder Permissions

I would like to apply some permissions to websites I have hosted on a Ubuntu machine What I will be doing is create a user for each project we have, and I would like each one of them users to not ...
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408 views

ZFS for file sharing between Ubuntu and OSX with auto mount

I want to use a ZFS volume to share files between Ubuntu and OSX on a dualboot configuration. At this point everything is working nicely except for the fact that I have to: zpool export MyPool ...
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76 views

NBF image in VirtualBox

I have a .nbf disk image created by acer backup manager of a windows laptop. How can I boot this system from a linux host system with virtualbox?
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37 views

Mapping ALT to Super in emacs

I am running Emacs under linux on a virtual machine in OSX. I am trying to map alt key on the mac keyboard to super, I want this to only apply inside the virtual machine running linux. Is it ...
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699 views

Install GCC 5.1 on Raspberry Pi 2 with Raspbian

I would like to install GCC 5.1 (newest version - although 5.0 would be fine too) on my Raspberry Pi 2 with Raspbian (Debian jessie) installed. Sadly there is no debian package for GCC 5.1. I've tried ...
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35 views

with an encrypted hard drive, how can I add more space to /boot

Since the last kernel update, I have been unable to install any other packages because /boot is full : Filesystem Size Used Avail Use% Mounted on /dev/mapper/Temoin--vg-root ...
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134 views

How to configure rsync to backup a windows XP partition while running linux

I have a dual boot configuration with an XP partition and a Linux partition. The linux partition is my primary one and the XP one is just for gaming/running Windows-only software that's pretty much ...
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13 views

What's the aprlog on Linux

Recovering from a compromised server. Pretty sure the aprlog (768773 -rw-r—– 1 root root root 18K 2015-05-03 12:22 aprlog) that is located in my home dir and presents itself as a bunch of encrypted ...
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63 views

Why does my Java test suite hang the entire system

When I'm running my test suite for a new java application it hangs, which by itself isn't that unusual considering it's under development. The problem is that that causes the entire system to almost ...
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66 views

Do virtual machines not allow all host CPU extensions?

For convenience's sake I'm trying to run an otherwise "regular" installation of Gentoo Linux as a guest inside VirtualBox on a Windows 7 host. I bootstrapped the installation by using VirtualBox, ...
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65 views

How do i attach running lftp process

so i have lftp process running for days at a time on a centos machine. I read the lftp man pages and discovered the attach command. However when i call it with the respective process id from the lftp ...
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95 views

UDP traceroute delay?

We are seeing timeout packages when running traceroute command between two Linux systems on a private network. However, we do not see such symptoms using TCP or ICMP over traceroute. This is a private ...
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783 views

GCC internal compiler error (segmentation fault in cc1plus) under multiple distributions

I'm trying to compile a software and every time I get this error: c++: internal compiler error: Segmentation fault (program cc1plus) Please submit a full bug report, with preprocessed source if ...
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641 views

Can't increase ulimit in Centos 6.6 - never persists

I'm trying to increase the nofiles limit in my Centos 6.6 system. My user is 'hchiu', and this is what I appended to my /etc/security/limits.conf: * hard nofile 128000 * soft nofile 128000 I've ...
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42 views

How do I make a bootable external hard disk?

I am making a bootable external hard disk (hdd) with tools like Yumi and Reflect but it never works. It won't even boot Ubuntu to install (via post) let alone open the Syslinux menu! Anyway thanks ...