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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DDD is going haywire on my computer, how to fix it?

I am fairly new to DDD, and to Linux at all to be honest. On my university lab I use DDD to debug the code, it works quite well. That's not the case in my own personal laptop. For starters, I don't ...
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1answer
30 views

Concatenating multiple JPEG Sequences to one mp4 file

I have multiple JPEG Sequences /mydir/A/preview.%04d.jpg /mydir/B/preview.%04d.jpg and i want to output them as output.mp4 One single shot works fine like that: ffmpeg -i ...
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1answer
37 views

etc/network/interfaces multiple connections (wired static + wifi dhcp), how?

I would like to configure /etc/network/interfaces so that it connects to wifi when the cable is not connected, is it possible? Following is the content of /etc/network/interfaces (Ubuntu 15.04): ...
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2answers
39 views

Connect wlan interface to specific BSSID without knowledge about SSID

I do know the BSSID and passphrase of my wireless router and I want to connect my wireless interface to it without caring about the SSID. Thus, I do want it to work even after the SSID of the wireless ...
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1answer
44 views

Connect button disabled Azure Linux RDP endpoint

I have Linux VM on Azure deployed with Hortonworks Sandbox VM and want install Linux desktop. Following this tutorial ...
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3answers
58 views

Interface Eth1 not visible in Virtual Machine

I am new to linux networking. Basically I wanted to use eth1 interface of my PC in VirtualBox but I simply don't find the eth1 interface. Below are the ifconfig and sudo ifconfig eth1 outputs. Please ...
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21 views

LXC: run command when USB device is connected

How can I execute a command in an LXC system container whenever a specific USB device is connected? Ordinarily, I'd use udev (cf. 1, 2, 3, 4, 5), but as far as I can tell, udev cannot be used inside a ...
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2answers
15 views

List only interface names for ifaces that have 'parent: eth0' field in ifconfig output with sed and/or grep

ifconfig output: lo: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 33192 inet 127.0.0.1 netmask 0xff000000 inet6 ::1 prefixlen 128 inet6 fe80::1%lo0 prefixlen 64 scopeid ...
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windows 10 - windows\winsxs\temp folder is taking huge space & updates not installing properly

Currently I am using a laptop dual booted with windows 10 and kali Linux also gnu grub boot loader is installed. I searched a lot about winsxs folder but every where they say it is dangerous don't ...
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1answer
19 views

Passwordless ssh login and cloning repositories via ssh gateway server?

In order to access a particular linux machine, I must first ssh to a provided gateway server, however I never receive a command line on the gateway server. Immediately on login to the gateway I am ...
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1answer
25 views

Automated way to run bash script inside Ubuntu hosted in VirtualBox?

I have Windows 7 as host OS, and Ubuntu 14.04 as guest OS running under VirtualBox, I have some shared folders with data between Windows and Ubuntu and some binary in Ubuntu that do some processing of ...
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xmonad: focus window when mouse is moved

In my xmonad config, I have set focusFollowsMouse=true so that a window is focused when the mouse pointer is moved onto it. However, I would also like a window to become focused when the mouse pointer ...
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1answer
23 views

SoftEther VPN Server has slow download but fast upload on linux host

The following ASCII drawing describes my problem: +------------+ | Internet | +-----^------+ | | | +-----+------+ | Router ...
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1answer
29 views

Fullscreen Citrix applications causing mouse offset

I am using Fedora 23 with Gnome and the latest Citrix Receiver. I need to use Citrix to open Windows applications for work and I am having an issue where when I try to maximize or full screen any ...
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0answers
8 views

Why is redhat 5.5 suspended by gnome-power-manager?

Why did this error occur on May 5 18:15:59? Did someone click the wrong button in the Gnome UI? -------------------log below------------------------ May 5 17:12:15 dbserver xinetd[5530]: START: ...
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1answer
29 views

Linux ssh/terminal program with built-in file browser [closed]

I've moved back to using Linux after a stint on Windows. While there, I had discovered and heavily used MobaXterm for ssh (and the occasional X session). The standout feature for me was that when ...
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0answers
39 views

Duplicity encryption

As many of you likely know, duplicity is a software program primarily used on Linux operating systems for creating backups of your desktop environment. The software is known to use gpg to encrypt the ...
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40 views

debsecan Fix CVE on debian

I just installed debsecan on Debian 8.1 to view the vulnerabilities that I have, and there were quite a few. Searching the web I see that most of them have a fix but I don't manage to figure out how ...
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9 views

How should I handle ABI incompatability between gcc-4.9 and gcc-5? [migrated]

I have recently upgraded my dev machine to Ubuntu 16.04 The default version of gcc is gcc-5.3.1. A problem that I have is a vendor supplied library is only built using gcc-4.9, which is not ...
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1answer
25 views

Retrieve passwords from “pass” which are stored under the name of a folder

I'm very new to pass and some days ago I inserted a lot of passwords into it. Suppose you store passwords under test and test/abc. What I noticed is, that it seems to be impossible to "show" the ...
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0answers
20 views

Synchronize the time between Raspberry Pi and android

I use a raspberry pi with a Bluetooth dongle to simulate a beacon. I want to measure the time needed for a mobile app to detect the ID of a beacon when I change it in the raspberry. So the time ...
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70 views

Grub does not pick up new kernels (was: How to update Fedora's kernel)

In a seemingly endless quest to get Vagrant working I am trying to update Fedora. Vagrant needs VirtualBox, VirtualBox needs kernel sources, and kernel sources are only available for the latest kernel ...
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9 views

SCL 6 - Chrome, how to use flash properly

I'm using Scientific Linux 6 and I have issues with Chrome and the flash player plugin. Under ~/.config/google-chrome/ there is a folder Pepperflash. While this folder exists websites that use flash ...
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1answer
26 views

Root FS Read only: Remounting gives “cannot change data mode on remount” when not changing data mode

After messing with the settings in fstab, my root filesystem is being mounted read-only. I was able to solve this error in the past by running # remount -o remount,rw / However, I am getting the ...
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31 views

How can I set up my ethernet on a fresh install of Fedora Server 23?

I am using Fedora Server 23, and cannot get my ethernet connection to work. It works fine on Ubunutu, OS X, and Windows 7 on the same machine. [root@localhost etc]# ifconfig ens5: ...
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1answer
54 views

read: Connection reset by peer using sshfs to connect to AWS

I am trying to use sshfs to mount a directory on an AWS instance from Ubuntu 16.04. The command I am using: sshfs -o IdentityFile=keyfile.pem ...
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30 views

Finding a headless machine on a restricted network

I own a Raspberry Pi with Ubuntu on it. It's configured with a wireless card and a microUSB for the sole purpose of charge, and I need to find it on the network to connect to it over SSH. ...
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37 views

Purpose of function export in bash

If we take a look at the following example: # testing(){ echo hello;} # testing hello # echo $(testing) hello # echo testing >script # ./script ./script: line 1: testing: command not found # ...
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33 views

Implementation of systemd service with dependency on external HDD

I just want to share a few thoughts about my first systemd configuration. So far I just used commands like start and stop this time I want more. I have a raspberry-pi running arch. I have a external ...
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1answer
45 views

PC won't boot up after I removed dual boot

I had a Windows 7 Ultimate - Zorin OS 11 dual boot. I used Easy BCD to remove Zorin, so I can have just Win7. Easy BCD successfully removed the dual boot, but then I did a really stupid thing. When I ...
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1answer
26 views

Alias to attempt mounting multiple times doesn't work correctly

I have the following in my .bashrc alias ext='sudo mount /dev/sd'{b..d}'1 /ext/hdd || sudo' I intended the alias to mount my external hard drive without having to worry about the semi-random ...
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1answer
21 views

VSFTPD Refusing Connection Debian

Trying to setup VSFTPD to use with ShareX for file and image uploading. When checking on the status i get this root@vps:~# /etc/init.d/vsftpd status ● vsftpd.service - vsftpd FTP server Loaded: ...
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1answer
42 views

Check how my process was killed

I'm currently running a simple Node.JS server with express.js on my RaspberryPi with Debian installed on it. Everything works fine, but every morning I wake up to see my server isn't running anymore ...
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1answer
13 views

Tmux - Detach client fails if using bash startup script

Typically, I use a bash script to create my tmux session (split panes, set PWD, call commands, etc.). This works great, except if I try to run tmux detach-client. It will fail to detach, instead just ...
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0answers
25 views

Switching workspaces in Xfce

I remote into Windows from Xfce on Debian Linux. One of my workspaces in Xfce hosts the Windows desktop. When using Linux, I use Ctrl+Alt+left/right arrow to switch workspaces in Xfce. However, when ...
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10 views

WIFI SD card for a Linux embedded device?

I'm researching the possibility of adding the capability of wireless file transferring, to an embedded device running Linux. It seems to be that a shortcut solution is to replace the SD card on the ...
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1answer
36 views

Linux rsync without recursive folders

I have a hierarchy of folders and want to rsync the file contents of one to another. So a simple rsync dirA to dirB However without the recursive element it does not include the files in the folder. ...
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0answers
18 views

tc traffic shaping for passing through traffic

I am working on tc traffic shaping, on my Gateway Linux Router, details are. eth0 =LAN eth1= ISP1 eth2= ISP3 eth3= ISP4 Proxy installed, and multi routing enabled to serve users on all ISPs ...
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54 views

How to connect Arch Linux Guest to Virtual Box Bridged Network (Wireless NIC)

I've tried to install Arch Linux as a VirtualBox VM a couple of days ago. Everything worked like a charm - if there hadn't been that issue that I can't connect to anything when I set the VM to use a ...
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21 views

Disable expired password change dialog in PAM

I try to find a way to switch off the password change dialog you get when you login with a expired password. """ WARNING: Your password has expired. You must change your password now and login again! ...
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14 views

linux + verify by ssh the remote machine configuration

what is best way to verify if the remote machine is cluster machine I just create the following ssh command to verify if the remote machine is VRTS cluster or Linux availability Red Hat cluster ...
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2answers
38 views

Get size of all files in directory modified within last year

I'm trying to evaluate storage usage on a linux server. Most of the bulk of storage is coming from the images. I'd like to see if I can get a sense of the size of files modified in the last year. and ...
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0answers
13 views

fstab drive auto-mounted to wrong (non-existent) dev

I ran into a curious problem today. ls /media/Personal would yield ls: reading directory .: Input/output error According to mount, that folder was mounted from /dev/sdb1 Yet according to blkid, I ...
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1answer
35 views

How to install XDM on Linux Ubuntu

I'm trying to install the latest version of xdm on Ubuntu 16.04 LTS from the official website http://xdman.sourceforge.net/ .. I managed to extract it, but i couldn't insall it! .. Any help? here's ...
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0answers
6 views

Customise Okular to add my own annotation “stamps”

There's an excellent post on customising Okular to modify highlight tool properties at Customise Okular to modify highlight tool properties It's helpful but it deals with modifying an existing tool ...
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20 views

Setting up file permissions for www-data in shared development environment

I asked a similar question before, but it was a bit wall-of-text-y. Being a tad more brief here My setup All of my client code is primarily going to be hosted on GitHub, with the ability to spin up ...
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1answer
48 views

Speedtest slow via SSH

I've got a small server at home (running Arch Linux) and I'm testing my internet speed. Using speedtest-cli directly from a terminal at the server I get DL speeds in the order of 30 Mbit/s and UL of ...
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13 views

Broadcom 802.11 cannot get into monitor mode with airmon-ng

I have a problem. I tried to go into a monitor mode with airmon-ng but it gives me this error: What can I do?
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59 views

wifi driver fails to load firmware on kernel 4.6.0-rc2

Distro - Ubuntu-14.04. For development purposes I built and installed 4.6.0-rc2 kernel. All works well except wifi: % dmesg ... [ 9.092503] Intel(R) Wireless WiFi driver for Linux [ 9.092506] ...
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1answer
18 views

Unable to set gopath

I have got go lang installed version 1.6.1/i386. Using UBUNTU 16.04. Whenever am trying to download gomobile tool using go get golang.org/x/mobile/cmd/gomobile it gives an error saying cannot ...