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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HAProxy resetting backend connections

I'm in the process of setting up a series of servers as proxies to our application server, primarily to obscure the application server's IP as part of a suite of anti-DDOS measures. My goal is to ...
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How often the application is used

Good day everyone, How can I detect application which are rarely used on Linux? Is there any command or tool that can give me the list of all the application's usage frequency?
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Transform a Raspberry Pi in a KVM over IP on steroids

I'd like to transform a raspberry pi in a IP KVM that connects automatically to a remote server and starts the control session. The Video part and the part of the auto-connect doesn't interest me ...
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mbsync configuration against outlook exchange

Can't figure out how to properly sync with subdirectories. Example: Channel sent Master ":remote:Sent" Slave :local:sent works just fine, since 'Sent' is a top-level dir. Now, trying to access a ...
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USB connected headset

My current headset broke so I am on the market for a new one and I was considering buying an USB headset, but I never owned one before so I am a little reluctant. I have a few questions about the USB ...
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Access Windows Hard Drive In Linux

I have a hard drive with data on it that I have been using as external storage in Windows 7...when I plug it into my Linux machine this is what I see: /dev/sda Block device, size 596.2 GiB ...
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How to add a delay for mouse focus in Linux Mint with Cinnamon

I've seen a lot of answer about how to ACTIVATE the mouse focus but I cannot find anywhere a way to add a slight delay. I don't want to have the window getting active as soon as the cursor touches it ...
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How can I check if a touchscreen device is resistive or capacitive on Linux?

I already have the entry in the /sys directory (for example, /sys/class/input/event6/device.) How can I check if the touchscreen device is resistive or capacitive on Linux? find -L ...
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I mv'ed a file and i cannot find it for some reason [on hold]

I moved a file a using mv command on ubuntu but i can't seem to find it for some reason. I used the find command and i cannot find it either. I ran the find command on this page and i can not find ...
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How to install sntp server on Kali linux?

How do I install a sntp (simple network time protocol) server on kali linux and make it propagate any time I want over the local network to listening clients?
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grub-mkconfig generating a shell script instead of grub.cfg

I had some problems with Ubuntu installation, I couldn't install GRUB, so I installed syslinux. Syslinux also had some problems with booting, so I just downloaded and burned super-grub2-disk and ...
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why cisco VPNC work on the second time each time and not on the first time

I use the vpnc ( cisco VPN that installed on linux red-hat 6.X ) and the vpnc.conf file look like this more /etc/vpnc.conf ## generated by pcf2vpnc IPSec ID Comvwde IPSec gateway 217.118.6.7 ...
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Ubuntu java application does not print

I have a issue a application that I'm using Pimaco http://www.pimaco.com/downloads Assistente Pimaco for label printing, I can make a preview of the document to be printed but the actual printing ...
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Debian Network-manager, how is the steps of connections to a captive portal

now a few days ago I'm looking how the network-manager works to automatically open to the browser when connected to a captive portal. I know Windows and Apple need to have their own domain hosted ...
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2answers
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Installing a linux distro directly from an iso on hard disk, with windows 8.1 installed?

I'm trying to install Ubuntu directly from the iso image I downloaded, without burning it to a DVD or flashdrive, following instructions from this article (I have Windows 8.1 installed). This involves ...
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cassandra 2.1 node stuck joining cluster

I have read all other answer regarding nodes unable to join clusters, and been in the IRC room, have been stuck on this for 2 weeks now and would really appreciate some help. I have cassandra 2.1 ...
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Linux mount point for shared data partition in multiboot

I am following up on the top answer in this old thread: Partitioning a Linux based system I just want to ask what mount point I should assign to the shared data partition when installing the first ...
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security: changing sudo permissions in /etc/sudoers on Debian 7.8

I have a single-user home system running Debian 7.8 console with desktop installed but default runlevel 3 boot. I added my limited user account to the sudo group using adduser for the purpose of ...
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safely shrinking /var/cache on Debian 7.8

Here are the top storage resource hogs on my single-user home system, which is a customized version of Debian 7.8 with lxde-core optional but no graphical login manager: 3487080 . 1732560 ./usr ...
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Incremental or Differential Backup from Server to Local HardDrive [on hold]

I just want to know, is there any software that can be installed in Windows to perform Incremental or Differential Backups from a server (running Linux) to local hard drive? Can I use FileZilla or ...
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Can I tell postgres to automatically stop after I log out?

I'm running a PostgreSQL database in a Linux (CentOS) cluster environment. Each time I log in the cluster I type pg_ctl start to start the server. Sometimes, when I log out, I forget to type pg_ctl ...
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How can I use ausearch to log the IP of a user when they modify a file over SSH?

My team logs in on a development server using the same root password; we have not set up separate user accounts. I am now trying to create a log of file changes and I want to distinguish between ...
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How to autocomplete python class in vim

In sublime text 3, if I'm editing a file.py and I type class it will automatically create this for me class ClassName(object): """docstring for ClassName""" def __init__(self, arg): ...
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Suggestions on how to set up my dev server for dev clients (Linux and WIndows)?

I am creating web intranet systems and have always struggled with developing on multiple clients with moving files and databases over back and forth trying to keep everything in sync. I have now set ...
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laptop screen blinking on linux

I have a wierd issue with my alienware 14 laptop, that is running debian testing. If I use it without ac adapter pluged in, after some time the screen start blinking randomly (it looks like ...
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Elementary OS not using proper display on Intel HD graphics laptop

I'm using Elementary OS 0.3 beta "Freya" and when I use the 3.13-43 kernel my laptop doesn't output to the proper display. When I boot up my laptop the login screen displays normally. Yet when I log ...
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why 'export $Path=$Path:dir' won't work?

I am just wondering why do we need to use this command export Path=$Path:dir why does the command not look like export $Path=$Path:dir/dir'
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Linux: How to kill a root owned process by parameter's name?

I would like to know how to kill processes owned by the root based on their parameter's information: root 3176 0.0 0.8 3604 2252 ? S 21:33 0:00 sudo python main.py root ...
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Downloading FEniCS Binary for Linux Mint, what is the difference between the two icons in the following download link?

I am a new to Linux/Ubuntu operating systems. In this link, I'm not sure which of the first two OS Icons I will need to use. I'll be using Linux Mint. Which one will I need to use? An explanation of ...
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Linux stuck on booting automatically in x seconds

I've recently found an old HP Mini of mine, and its hard drive was on its last legs. I decided to replace the HDD (Win 7) with an SD card running Ubuntu. The problem is, whenever I start the ...
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How can I prevent firefox from switching to search tab?

In firefox when you highlight Some Text and click right mouse button there is option Search google for "Some text". It is all nice, but firefox switches to the search tab immediately, how do I prevent ...
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How can I change a ChrUbuntu 12.04 install over to Arch ARM on a first generation Samsung Chromebook XE500C21?

I installed ChrUbuntu 12.04 on my Chromebook (Samsung XE500C21) using this script. Is there a way to swap my distro over to Arch ARM? Failing that, is there an easy way to install Arch ARM on the ...
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RTNETLINK answers: File exists Failed to bring up eth0

I have 3 identical servers which I SSH into, but couldn't on one of them after a restart. service networking restart just bring up "RTNETLINK answers: File exists Failed to bring up eth0" route just ...
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How to delete lost files in NTFS drive

I faced a problem like the one described here. Basically, after connecting my NTFS external hard drive to my TV, two folders were lost, appearing only as a 0KB file. I have been able to recover the ...
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How can I erase a 250gb external usb drive with linux partedmagic boot cd

I run a dual boot of windows 7 and xp on Dell Optiplex 280 with a Pentium 4 mobo, a CPU of 3 Ghz and 2GB ram. My question is "How do I use the ERASER TOOL in Linux Partedmagic Boot Cd to completely ...
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How do extract filesystem from firmware dump of Sunell IP Camera

I have Sunell IP Camera and I need to extract file system from firmware dump. I try to use firmware-mod-kit: ./extract-firmware firmware.ntt The process completed successfully and I get result like ...
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restoring files after doing rsync with compression

I understand that you can rsync with arg -z and -a for compress and archive. Can someone tell me with these options, does it affect the files being backed up in any way if ever they need to be ...
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Linux Mint Cinderella 17 stuck on setting up host name dose not seem to move?

Installing Linux Mint Cindarella 17, It just seems to be stuck on setting up host name and just not doing anything else is this normal? Or have I done something wrong? Would greatly appreciate your ...
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Not registering on Asterisk over VPN

I want to work in local area from home, I configured OpenVPN on my Asterisk server (it is only one Linux server in LAN), it works fine. I enabled forwarding on Asterisk server, and client now can ...
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Renaming multiple files to start with a capital letter

i'm trying to update my website to use CodeIgniter 3 but Starting with CodeIgniter 3.0, all class filenames (libraries, drivers, controllers and models) must be named in a Ucfirst-like manner or in ...
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install php-fpm on centos after remoe it

i install php-fpm and php-mysql and nginx then i remove it and update servers kernel. now, when i want to install php-fpm ,.. dont install $>uname -a 2.6.32-504.3.3.el6.x86_64 #1 SMP Wed Dec 17 ...
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Switch Server to use GCC version 4.8.1

I'm banging my head against a wall, I followed the instructions detailed here: http://superuser.com/a/677640 When I ran yum install devtoolset-2-gcc-4.8.1 devtoolset-2-gcc-c++-4.8.1 this was the ...
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Dual workspaces, One monitor

I'm currently using Linux Mint, and have a single 24 inch monitor. Does anyone know of an application that will allow two workspaces to be viewed \ used at the same time? I know of window managers ...
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Round-Robin Outbound Source IPv6 Iptables

I'm trying to do this: http://linuxbutler.com/tcpip-outbound-round-robin-load-balancing-iptables/ But with IPv6. It doesn't work, however. Seems nat doesn't exist in IPv6. Can you guys help me out ...
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Webcam problems on Centos 6.6

I've been unable to get a few different webcams working on CentOS 6.6. (Logitech C270 & Creative Live! Cam Sync HD) I think it's related udev but unsure. The following are my /var/log/Xorg.0.log ...
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Installing CUDA toolchain in linux without botching X

I've been trying for some time to install the CUDA toolchain on my linux (Fedora 20 x64, GeForce GT 540M) system. The main issue is that the drivers that curently allow X to run ...
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swap file vs partition

I needed some more swap for something I'm doing so I set up a swap file rather than editing partitions. Are there any disadvantages to using a swap file instead of a swap partition? My OS is ...
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Iptables rules suddenly not working

I'm trying to set up a webserver using an Odroid U3; as OS I have Debian 7.4. The issue came when trying to load the iptables rules with iptables-persistent. I'm using the same file with rules I've ...
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chmod throws missing operand on 764, OK on 664

Having set everything in my project to 777 (rwxrwxrwx) for debugging purposes, I wanted to dial down the openness and set the directories (not the files) in the root folder to 664 (rw-rw-r--). To do ...
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SSD seems to be read-only, nothing can be written to it (linux ext4 filesystem)

After two week of normal use my new SSD began to work strange. Now it seems that no file is written to it. An example: root@hooker3:~# mount |grep ssdhome /dev/sda3 on /ssdhome type ext4 ...