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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Reverse DNS PTR lookups ocurring on each connection

I'm running a Debian-based VPS (Linux vps 2.6.32-042stab092.3 #1 SMP Sun Jul 20 13:27:24 MSK 2014 x86_64 GNU/Linux) which is behaving a bit strange. Whenever a new connection is established to it, it ...
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1answer
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How to migrate a root filesystem to another partition from within running system?

I try to migrate a root filesystem from ext4 to another partition type (zfs) and started with a simple rsync -a --exclude=/boot --exclude=/mnt --exclude=/media --exclude=/tmp --exclude=[all zfs ...
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Cant boot into test mode Windows 8.1

OK so a bit of background: I need to disable driver signing because I need to install a modified driver so that I can hook up my PS3 controller. I have a dual boot setup with Mint 17 and windows 8.1 ...
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1answer
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How do I set a static permanent IP on a raspberry pi

I have an NOOBs-Raspbian Raspberry Pi. How can I set an permanent static web IP to it?
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1answer
6 views

Error compiling the linux kernel 3.8.0

I am trying to compile the Linux kernel on my virtual machine which is installed Lubuntu, and I am getting the following error: In file included from ubuntu/aufs/aufs.h:45:0, from ...
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How to build an sd card image, without an sd card?

We have a scripted process that builds up an embedded install of Debian Jesse on an sd card. The relevant parts of the script look like this: export DISK=/dev/sdb umount ${DISK}1 # make sure no ...
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How to keep ppp up and running

I'm using a USB Cell Modem on a Arm SBC running Debian Jesse. I have a wvdial.conf file and a ppp0 file in my /etc/network/interfaces.d directory: auto ppp0 iface ppp0 inet wvdial It mostly Just ...
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1answer
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Virtual folder combining a read-only and read-write directory (file deduplication)

Is it possible in linux to have a directory that contains all the contents of another directory (in a read-only fashion) but you are able to write to the directory without it affecting the 'parent' ...
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3answers
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Debian Linux: /usr/bin/nologin missing

I have set up a Debian Linux server, now I want to disable the shell so the user can't login and just connect via SFTP. But my /usr/bin/nologin is missing for some reason. In which package is it ...
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1answer
22 views

Passing different set of arguments to the different commands in a linux bash script

I am writing a bash script foo.sh that runs too commands bar with first input argument, and baz with the second argument: #! /bin/bash bar "$1" baz "$2" Now I want to make foo.sh more flexible, ...
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2answers
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How to execute a system command one minute after reboot (Linux)?

Is it possible to run a system command such as mount a certain amount of time after system reboot? My problem is that I had an entry in /etc/fstab to mount a host disk in a Linux (Ubuntu) virtual ...
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install ipkg on DS413j DSM 5.0

I would like to install sudo with ipkg. First ipkg need to be installed. You can find the bootstrap tutorial of Synology here. The DS413j has a Marvel Kirkwood mv6282 ARM processor. So I used this ...
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4answers
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Connnect to Linux from Windows using PuTTY over the Internet

I want to connect to Linux from Windows using PuTTY, over the Internet. This will give my friends access to execute shell script files on my Linux (Ubuntu). I have tried this on Windows 7 and Linux ...
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5answers
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How to copy hidden (starting with a dot) files and subdirectories in linux?

How to copy hidden files and hidden subdirectories (the ones starting with a dot) in folder A to folder B? For example if I have this structure: A/a A/b A/.a A/.b/ A/.b/somefile A/.b/.c I would ...
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How to add files to dotfile-castle with homesick?

So I've setup my dotfiles repo on github and installed homesick to manage my dotfiles. So now I happend to have a clone of the repo on my local machine but also a cloned CASTLE ...
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0answers
8 views

Script output from Curses program like mtop

I'm trying to write some automated scripts to store things like cpu usage etc. In 'top' there is a batch mode, so I can output this fine. In a program like mtop, where it uses 'Curses' and no batch ...
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0answers
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How can I fix a Debian VM booting to a black screen?

I have a VDI file with Debian installed on it. When I start the VM, GRUB is run and after choosing the system's version (restore or normal boot) a black screen appears. How can I diagnose what the ...
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10 views

Email backup from terminal without rc file

I am looking for an application that I can use to backup all my different IMAP accounts. It needs to be done from the Linux terminal so that I can script and schedule it using cron. So far I have ...
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0answers
11 views

Firefox image view using css from chrome:// schemed URL

I am running Firefox on Debian Linux. When I view an image directly (e.g: http://localhost/image.png) and I open the element inspector I see the following code: <html> <head> ...
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2answers
30 views

sudo cp with wildcard syntax doesn't do anything in Linux

I have a directory containing files that are owned by root, from this directory I wish to copy all the files ending with errorAll to another directory. My wildcard syntax is correct because performing ...
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0answers
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How to mount only a part (byte- or block-based) of a device file?

How can I create a block device file of an existing block device file of size z (including a file associated with a loopback) so that a certain byte x (with x > 0) appears as first byte, x+1 as ...
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1answer
14 views

Keep screen running after starting it with an alias and running some commands

I have a bash alias to move into a project folder, start screen, and pull new changes from git. it looks like this: alias start_manager2='cd ~/programming/manager2/ && screen -t "main" ...
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8 views

Start user systemd service once logged in and network up

I have a Gentoo system running KDE as a desktop. This is installed on SSD and using systemd and so it generally happens that the system boots and I login quicker than DHCP can do its thing and get an ...
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5 views

Disabling Mod SuExec

hello i have installed kloxo latest on centos 5.10 in one of my sites i want to use cgi scripts i give permission (0755) to cgi scripts ... and edited httpd.conf commented this line : ...
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Why has my Debian testing VM suddenly stopped loading X Windows System?

I recently installed Debian testing (jessie as of writing) into a VirtualBox VM. After installing, I loaded make, gcc, and dkms so I could install the Guest Additions. After installing Guest Additions ...
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OpenWrt Script (Inifinite Loop) Stops sending data over Serial Port

I have a TP Link Router TL-MR3020 flashed with the latest Attitude Adjustment. It is connected to an Arduino Uno via the usb port (usb cable into the arduino's type b connector). I have the following ...
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1answer
17 views

How to view mail through a client?

I just finished installing the postfix mail server and I was wondering how I can view my mail through a client rather than through command line? What clients exist for this and which are considered ...
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1answer
12 views

Gnome 3.14 system menu new button

Just installed Gnome 3.14 on Arch. What's the function of this new button on system menu?
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37 views

Backup Hard Drive (Data Only) To A Single Non Proprietary File (ISO, IMG)

I am looking for a way to clone/image a hard drive or removable USB to a single file, without preserving empty space. For example: I have a 1TB drive with 100GB of data that I want to back up. The ...
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0answers
23 views

How to compile Linux Kernel 3.x? [on hold]

Can anyone explain how to compile Linux Kernel 3.x? I've only compiled Linux Kernels 2.x and the usual procedure was: make menuconfig make dep make bzImage make modules make modules_install make ...
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1answer
30 views

How to use linux bash “sort” command in a portable script?

I am writing a bash script and I want to make it portable, to have the same results in the other computers. From this question I learned the system settings, like language settings and possibly other ...
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1answer
14 views

Restore a file overwritten with ln -nfs?

I accidentially "deleted" a file by doing this: ln -nfs /path/to/file In my understanding the data itsself should still be there. I also stopped working on the machine as I did this shit... Is it ...
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Apache2 crashes on my RPI with no visible errors

I'm running Raspbian, a Raspberry Pi wheezy port optimised for it. I'm currently runinng WordPress on it, though it was doing it before(I think). When it crashes the rPi displays no onscreen errors on ...
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1answer
25 views

Unexpected result from sort command of linux bash

I have a file foo.txt with this content: chr1 15 chr11 5 chr11 8 chr1 7 chr2 23 chr1 35 I tried to sort it first according to the first column, and then according to the second ...
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17 views

Reinstalling linux without Re-Encrypting

I kinda crashed my system today by apt-get removing sensitive libraries with dependencies (for example pre-installed gnome-core and iceweasel were removed too)... I could successfully restore most of ...
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1answer
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No output / stdout / feedback in mysql prompt on Ubuntu 14.04

I'm running Ubuntu 14.04 and Nginx, and I recently installed mysql-server while following Digital Ocean's LEMP stack setup guide (I intend to run a WordPress site with it). When I try to log into an ...
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1answer
22 views

find all IDs and CLASSes used in an HTML document in BASH

I have a block of HTML that I need to pull all the IDs and CLASSes out of. Im wanting to make a list of these so that I can start trimming our larger then necessary CSS doc (173k). Ill isolate the ...
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0answers
3 views

SSH tunnel data from hostapd server to remote server

I've set up a small raspberry pi with hostapd to be a wireless access point. I'd like to have all connections from it ssh tunneled to a server in another country. I'm not overly sure how I'd do this, ...
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0answers
24 views

Linux how to move space from one partition to another

I am not familiar with Linux OS configuration. I need you help to move more space from one partition to another. I have this disk usage right now: $ df -h Filesystem Size Used Avail ...
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Linux wireless driver issue

I have HP pavilion 15 p050-su. My wireless card is Broadcom bcm43142. I can make the card runnig but the problem is that I have extremly low range(even when I'm infront of the router(less than 1 meter ...
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2answers
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RPM command stuck/FREEZE when installing RPM file

I want to install the following rpm from some reason RPM is stuck or freeze and not install the RPM package also I cant stop it by control C , please advice what could be the problem ? root]# rpm ...
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1answer
16 views

Merge a squashFS and a initrd into one single file (PXE booting)

I have a initrd and a cloop (squashFS). Which is the simplest way, to merge those 2 files into one single initrd file, for the purpose of PXE-booting the whole image at once without any bootstrapping ...
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Debian Active Directory to LDAP migration

These days I am working on LDAP and Active Directory migration. I want to migrate to LDAP but I cannot get passwords from Active Directory. I want to seemlesly migrate to LDAP, and I want a solution ...
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0answers
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How to multicast live H264 without transcoding?

I have a live H264 stream (hardware encoded from the webcam) and I'd like to stream it over the network using multicast on a Linux platform. Because the platform has limited CPU power, and the data ...
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0answers
7 views

Install root certificate authority on Ubuntu

First off I am not sure whether I have the correct terminology. What I mean by certificate authority is a verified certificate distributor such that if I goto a website in my Browser that is HTTPS ...
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Periodic backup of changes on another disk from full backup

I am looking for a backup solution that will enable me to backup only changes to an internal disk after a full backup to an external disk. Also, this should run snapshot backups every day until the ...
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DNS Servers Between Two OS

Trying to sync DNS Servers between a Linux server and a Windwos server. Anyone have an idea how to sync an UBUNTU DNS Server with a Windows 2012 R2 DNS Server?
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1answer
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In bash, declare an alias that depends on current variable content

I would like to declare an alias in my .bash_profile that will use the content of a variable when the alias is used and not when it is declared. Ex: alias goSomeWhere="cd $BASE/somewhere" When ...
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0answers
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monitoring download/upload traffic of every process running on a remote system

I'm looking for a linux tool for monitoring upload/download of each process of a remote system. I've found some like nethogs, but they don't do this remotely. As I don't trust the guest system I want ...
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1answer
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How to get status code of program piped to linux dialog command

I am trying to use Linux dialog to prepare simple installer for Ubuntu. The actual command is: dpkg -i package.deb 2>&1 | dialog --programbox "Installing..." 10 100 I want dialog to ...