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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anybody know what is VG #orphans_lvm2 on a Linux host?

I see the below output from pvdisplay command: pvdisplay -c /dev/mapper/mpathfp1 2>/dev/null | grep :| cut -d: -f2 ##orphans_lvm2 The command is supposed to reveal proper VG name which the PV ...
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1answer
5 views

OpenVPN server config pushing DNS & gateways throws “Unrecognized option or missing parameter(s)”

I'm attempting to push config parameters. My OpenVPN server config specifies: push "redirect-gateway" push "persist-tun" push "remote-gateway 52.58.43.124" push "remote-gateway 10.0.31.207" push ...
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Where to reset sources list for apt-get on Mint 16?

I'm trying to fix my apt-get, as it has been 404ing on sudo apt-get update for a while. However, nothing I do seems to fix these numerous 404s. It appears that there are many different places to ...
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1answer
20 views

Arch Linux Boot Halts on “Started Authorization Manager.”

I was using Arch Linux on my laptop, and during the shutdown procedures there was something making it wait and during that time my laptop ran out of batteries. Now when I try to boot it halts. This ...
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Mouse does not work on chrome after upgrading from 44.0.2403.89-1 to 45.0.2454.15-1

Today I upgraded (apt-get updateand apt-get upgrade) my Debian Jessy 64-bit and after this, new version of google-chrome (Google Chrome 45.0.2454.15 beta) is kinda frozen if I try to move of click on ...
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14 views

Add a package(RPM) to CentOS ISO

I'm having some trouble trying to install CentOS 7 (Everything iso version) on my Laptop with OSX Yosemite installed (Hackintosh). The error prompts when starting installation because it looks for ...
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1answer
7 views

/usr/bin/env is pointing to wrong ruby version. “No such file or directory”

If I type "rake spec" I get. /usr/bin/env: ruby1.9.1: No such file or directory This problem started happening when I uninstalled ruby 1.9.1 and used rvm to install the latest ruby version but ...
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1answer
8 views

Windows using SMB shared from Linux + moving a hard link: what happens?

I have a linux file server which may have this example directory structure: /path/to/directoryA/file1.dat /path/to/some/common/place/data/file1.dat These files are hard-links of each other (i.e. ...
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2 views

BTRFS delete missing drive, ignoring I/O errors

I have a BTRFS file system, distributed on 3 drives (no raid). One of my drives died yesterday. I can still mount the file system using sudo mount $path -o degraded,ro About 120k files (out of ...
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1answer
15 views

Unable to live boot most Linux distros on VirtualBox

The host OS is Windows 7 and the machine supports virtualization which I have enabled in BIOS. (I can confirm it works because without virtualization enabled in BIOS VBox does not show 64 bit OS ...
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9 views

Copy On Write will stop working with Docker?

I have been using Docker with great pleasure, but there is a question that concerns me and for what I have found not explanations on the Web. In a "normal" GNU-Linux server, executing different ...
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9 views

Forward VOIP phone on eth1 over OpenVPN (tun0)

I have a remote computer connecting to my network via OpenVPN. This computer is running Linux Mint, and has two network cards: eth0: used for Internet connection eth1: has a VOIP deskphone plugged ...
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13 views

Amazon EC2 as a VPS [on hold]

I want to deploy an Amazon EC2, for my servers (mail, joomla, etc...), I also considerated DigitalOcean.com but i am a little afraid I lose all my things at DigitalOcean.com, so i'm looking for a more ...
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1answer
6 views

How do I move a CMS installation from root to subdirectory (nginx)

I've inadvertently installed Wordpress into the root of my Ubuntu nginx server. How do I move this installation from root to a subdirectory called /blog? ex. mysite.com/blog What I have now: server ...
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12 views

Ubuntu 12.04 and SSH: Automatically shutting down another computer when powering off

I want to shut down another computer in my network when shutting down my own. For that I have created a script that logs into that machine through ssh and powers it off. (SSH keys are set up, so no ...
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1answer
10 views

netstat with --inet option does not display listening tcp por

Can someone please explain why the output of the command are different? user@geeko:~> netstat -ln | grep 9876 tcp 0 0 127.0.0.1:9876 :::* LISTEN and ...
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45 views

Any problems on multi-boot in case of free upgrade from Windows 7 to Windows 10?

I use Windows 7 on a multiple-boot machine (beside Win7, I have different Linuxes, using Grub). I want to freely upgrade Windows 7 to Windows 10. Will the procedure have some impact on the ...
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2answers
26 views

how to insert a text file in hosts.allow or hosts.deny?

So I read in man page of hosts.deny that i can input files in /etc/hosts.allow or hosts.deny to input ip addresses which i want to block or deny. So i tried doing this in hosts.allow sshd: ALL ...
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1answer
16 views

IP masquerading, rule to forward packets between the Interfaces (on a multihomed network device)

Preamble This question can be considered as a followup to link Setup System: Embedded linux system running netfilter and iptables enabled kernel. Number of interfaces: 2 eth0: Connected to a NAT ...
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ssh command fails when run with ssh-dss as hostKeyAlgortihm

I am running two commands one after other. I run in the following sequence second command fails with error code 255 First Command: ssh -ladmin -oStrictHostKeyChecking=no \ ...
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Is there a failsafe guide for “ssh -X” usage for both client and server?

I simply can't get SSH properly to run with my server config. Both machines are reachable within the identical NAT and around 15cm distance away, they can both be accessed via TCP/HTTP or other ...
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Linux Mint 17: No 1366x768 Resolution

When I installed Linux Mint 17 for the first time I was facing some freezes and I solved that issue by installing nvidia-304-updates driver. But now my native resolution 1366x768 is not available in ...
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1answer
18 views

How do I get access to the file system of a stopped AWS instance (virtual machine)?

Issue: I have an AWS t2.micro (virtual machine) instance (name:webserver) set up with Ubuntu 14.04 LTS. The instance is unusable due to a configuration file that I edited improperly and saved. I ...
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1answer
27 views

How do I determine what programs are running with root privileges?

Is there a way to check via terminal which programs are currently running and by which privileges they run?
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How to downgrade kernel of samsung device SM-T230

I am facing a weird problem. My client reported that our game(which is based on cocos-2dx 2.2.6) displays black screen after focus change on one device namely Samsung Galaxy Tab 4 SM-T230 the Log ...
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1answer
15 views

Why does ssh wait for all the launched processes to exit?

I am running a script from one machine on another machine using ssh. ssh <host> a.pl Now, a.pl starts several other instances of a.pl using the 'system' method and executing each of them in ...
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12 views

Taking control over a ThinClient

http://41j.com/blog/2011/10/hp-t5325-thin-client-hacked-to-full-debian-system/ In reference to that. I've tried spamming CTRL+C with no avail. Are there other ways I could try to take control and ...
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0answers
18 views

mount point is not a directory

I am trying to mount a directory from a local desktop in my home network. The computer exporting the nfs share is named jarvis and the nfs client is named marvin. On marvin, I run showmount -e jarvis, ...
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1answer
13 views

Is there a way to change file/folder ownership on a server in Ubuntu/Kali-Linux?

I accidentally changed file ownership of a folder in Windows 7 and now nobody can edit, copy, view, move it, etc. Not even the administrator account account can change it back. I tried icacls and ...
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2answers
23 views

zero a large block device with parallelized dd

We have a sixty terabyte block device which we want to zero using dd. Is it possible to parallelize this operation in order to reduce the amount of time it takes? I've tried running the following ...
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15 views

OpenVPN iptables and security

I want to run OpenVPN at home. I have a virtual instance of Debian 8 on my ESXi 6.0 host with its primary IP as 10.0.0.99. I assigned multiple virtual NICs (server, vpn, management, backup) with the ...
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1answer
39 views

samba is up and accesible but not showing

I have a very strange problem, I have samba set up and running. I can access it if I use manual access like : smb://myserver however it does not show it on the list under my WORKGROUP. (no Folder ...
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1answer
20 views

Autocompletion on all my programs for Linux [on hold]

I'm looking for a tool to have an auto-completion feature (glory to zsh!) working on my whole linux system. It could be something similar to the suggestions given by the Android keyboard, but having ...
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1answer
331 views

HDD naming in Linux?

Does Linux attempt to give a drive the same letter each time? For example, if was to connect two drives to my computer, then disconnect them and reconnect them in reverse order would sdb and sdc ...
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Upgrade Linux Mint from ISO on HDD without burning DVD/USB

I have an old computer that I wanted to rescue, so I installed Linux Mint 10 onto it using a Live CD. Now, LM10 is obsolete, so I'm wondering if I can upgrade the distro using the ISO file of LM17. ...
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11 views

Binutils compilation error, makeinfo missing

I am compiling binutils from source on my amd64 computer. I got the following message: WARNING: makeinfo is missing on your system. You should only need it if you modified a '.texi' or '.texinfo' ...
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1answer
19 views

ssh proxy command with netcat

In example like this: Host destination ProxyCommand ssh gateway nc %h %p Is the connection between the gateway and the destination encrypted? I am confused because I have 2 hypotheses and both ...
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1answer
25 views

Copy (almost) entire filesystem with minimal effort

A couple months ago I switched from VPS to dedicated server, however all this time I haven't found the time to actually go through all the files I might need again, copy them and shut down the VPS. ...
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1answer
9 views

Dual display through X11 protocol

I have a question: I'm working on a computer that has no secondary display output, but another computer in the network has one. Is this possible to extend the second monitor through X11 with the ...
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2answers
31 views

How to update git on RHEL without access to root?

I am trying to get my IDE set up at work for a project I am working on. I am coding in python and working in PyCharm because of its awesome git support. However, whenever I try to configure git on ...
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2answers
16 views

Continuously check status of OpenVPN connection

I'm trying to check and display the status (connected/not connected) and the server's hostname/cn of an OpenVPN connection that should connect at every boot. Now I've found out that in ...
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23 views

linux app runs only in terminal, not from desktop icon

I have a linux app that runs perfectly from the commandline, but when I launch it from its desktop icon, the system cursor goes into a long wait state, then nothing. The icon app.desktop file gives ...
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What is required to make sure no plaintext password is on the wire between an Apache web server and an ActiveDirectory server for LDAP authentication?

At my work, I have a rather stubborn IT person who is extremely against adding services to our central SBS installation (which means no SVN, no internal web server, etc.) As a compromise, I convinced ...
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19 views

Harddisk not mounting: not recognized under Devices - Ubuntu

I am using Ubuntu 14.04 desktop computer. According to my code I mounted my harddrive and then copy a file in it. I also use 2 USB for this copy operation. Today I got into trouble. Firstly one of ...
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1answer
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bash - processing output one line at a time

I read that xargs was good for processing the output of a command one line at a time (and it is). I have the following line in my script. ./gen-data | awk '{printf $2 " "; printf $1=$2=$3=""; gsub (" ...
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What is the best way to create a local development environment in a linux machine without being in sudoers

I use a workstation for my development but it does not include all the libraries for my case. I like to install them for my use without any system wide effect. How should I proceed this is a linux ...
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CBL is blocking my IP and I have no IDEA how to fix. Urgent please help :( [on hold]

I am new to stack overflow so sorry if I do not get this quite right. I noticed my mail.log was 4gb in size so I opened it up and it has 12 million lines similar or the same as this: Jul 19 06:53:04 ...
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1answer
30 views

SSH still prompting for password with authorized_keys

I'm trying to log into a server with a different user. The user's name on the server is gitquery. I used ssh-keygen to create these files locally: /opt/gitquery/gitquery-rsa ...
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Need help formatting drives for dual booting Windows with Antergos

Okay, so I'm planning on dual booting already installed Windows 7 with Antergos. I currently have 4 active Primary NTFS drives set up. I will be formatting one of those into ext4 in order to use that ...
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Mac Address configuration in DHCP Server Ubuntu 14.04 LTS

I have configured the DHCP 3 server on Ubuntu 14.04 LTS and releasing the IP Address on all device. Now I want to register the mac address to only 150 device not for all and I don't want to put the ...