ubuntu - DOCKER_OPTS do not work in config file /etc/default/docker

I have changed /etc/default/docker with DOCKER_OPTS="-H tcp:// -H unix:///var/run/docker.sock" (docker version 1.4.1 in ubuntu 14.04), but it do not take any effect for me (not listening at port 2375). It seems that docker do not read this initial config file because I found export http_proxy enviroment do not work too.Only sudo docker -H tcp:// -H unix:///var/run/docker.sock -d works.It really confused me!...Read more

Docker doesn't work after installed on Ubuntu 14 based on official tutorial

I am using official Ubuntu 14I am following this official document to install docker. After install, docker exists on the server, but it just doesn't work. docker ps // or docker run hello-worldAll return the same errorCannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?.See 'docker run --help'.I am really new to docker, what is going wrong? How to run docker deamon?Result of "sudo service docker status" command:...Read more

ubuntu - Configuring Docker host in jenkins

I have installed Jenkins ver. 2.73.3 in Ubuntu 17.10Same machine also has Docker version 17.09.0-ce.I also added the following line in /etc/default/docker fileDOCKER_OPTS="docker -H tcp:// -H unix:///var/run/docker.sock"cat /etc/default/docker# Docker Upstart and SysVinit configuration file## THIS FILE DOES NOT APPLY TO SYSTEMD## Please see the documentation for "systemd drop-ins":# Customize location of Docker binary (especially for development testing).#DOCKERD="/usr/local/bin/...Read more

ubuntu - Unable to connect to SSH server. /.ssh/authorized_keys: Permission denied

I've been trying to setup a Ubuntu server with SSH authentication through RSA keys the last 4-5 hours, but i can't get it to work. Been all over google without any luck. I'm running an Ubuntu 16.04.3 server with SSH-2.0-OpenSSH_7.2p2. Just reinstalled the server as well.I've made sure to set the permissions on the ~/.ssh folder to 700 and /.ssh/authorized_keys to 600The key been made by Puttygen (RSA 2048 bits) and I properly formatted it to ssh-rsa <long random string> comment before adding it to /home/user/.ssh/authorized_keys This is t...Read more

terminal can't see copied folder - ubuntu

I am really new to Ubuntu and OpenFoam, so trying to learn and doing some tutorials. I am using Docker to work with OpenFoam on Ubuntu.I copied a folder to a specific directory, however when I try to access that folder using the terminal, I can't; I only see the original folder, not the copied. I have used commands such as cd to go to the directory and ls to see what folders are present, and that's where I only see the original folder.Would really appreciate some help!...Read more

Unable to start Vagrant VirtualBox on Ubuntu

I am just trying to start some Windows vagrant VirtualBox VMs.vagrant upBringing machine 'default' up with 'virtualbox' provider...==> default: Clearing any previously set forwarded ports...==> default: Clearing any previously set network interfaces...==> default: Preparing network interfaces based on configuration... default: Adapter 1: nat==> default: Forwarding ports... default: 5985 (guest) => 55985 (host) (adapter 1) default: 5986 (guest) => 55986 (host) (adapter 1) default: 22 (guest) => 2222 (host) (adapt...Read more

ubuntu - How can i upgrade libboost 1.54 to 1.58?

I have two Ubuntu 14.04 Server 64 bit machines. When i use "sudo apt-get install libboost-all-dev" on both machine, machine 1 gets libboost1.54 and machine 2 gets 1.58. Why is that?I want to use machine 1 to compile a programm for machine 2 but since machine 1 uses libboost 1.54 i always get error while loading shared libraries: cannot open shared object file: No such file or directoryon machine 2, which uses 1.58, when trying to run the compiled program. I tried to create a link with sudo ln -s /usr/lib/x86_64-linux-...Read more

ubuntu - Running a display-based program without calling sudo / not as root

I have an Ubuntu server that runs a program that uses the gpu. Till now, to run my program, I’ve been callingexport DISPLAY=:0export XAUTHORITY=/var/run/lightdm/root/:0Which works, however, this requires me to run my application as root, since root owns that :0 file. Ultimately, my question is how to configure my system to avoid this?Some background:This server is currently configured to bring up lightdm at startup. lightdm in turn starts Xorg, with -auth /var/run/sddm/root/:0, such that ps -aux shows this as a process:/usr/lib/xorg/Xorg -core ...Read more

ubuntu - Openbox: disable entire keyboard

I'm running Ubuntu Server (16.04.3 LTS) with X, Openbox and Chromium in kioskmode on a touchscreen device. It is starting up as a (non-root) user straight into the kiosk.There is no need for a mouse or keyboard, so I'm starting X with startx -- -nocursorwhat effectively disables the mouse. But the user still can plug in a keyboard and do all sorts of unwanted things with Chromium. So I'm looking for ways to disable the entire keyboard.To catch and disable every single key and key combination in Openbox rc.xml seems an impossible task to me. So ...Read more

tkinter in Ubuntu inside Windows 10. Error: "no display name and no $DISPLAY environment variable"

I have recently installed the Ubuntu app for Windows 10 so that I can use it for a class.I am following some cryptic assignment directions to "try out tkinter".I installed the package python3-tk in the Ubuntu terminal window following instructions located here: How to install and use Tkinter in ubuntu / Debian / Linux mint.So then I execute~$ python3with the resultPython 3.5.2 (default, Aug 18 2017, 17:48:00)[GCC 5.4.0 20160609] on linuxType "help", "copyright", "credits" or "license" for more information.then the following commands:>>>...Read more

VirtualBox Ubuntu 16.04 (and 17.04) guest with bad resolution

I have just installed the following ISO in a VirtualBox GUEST on a Windows 10 HOST:ubuntu-16.04.3-desktop-amd64.isoEDIT: looks like the same happens with 17.04.the host is:Microsoft Windows [Version 10.0.15063]VBox version:After following the normal Ubuntu install procedure I decided to install the Guest additions, via:Devices -> Insert Guest CD...It opened a terminal window, the installation proceed with no-errors and it said something like "Press enter to close".After restarting the GUEST OS, I see this and it's only possible use the keybo...Read more

ubuntu - vagrant up error : default: Error: Connection timeout. Retrying

I am new to vagrant tool.I am using Ubuntu 13.04my project directory is "/var/www/project".I have set up Vagrantfile through following command.vagrant init test_box Vagrantfile is created successfully.Below is the content of the file# -*- mode: ruby -*-# vi: set ft=ruby :# Vagrantfile API/syntax version. Don't touch unless you know what you're doing!VAGRANTFILE_API_VERSION = "2"Vagrant.configure(VAGRANTFILE_API_VERSION) do |config| # All Vagra...Read more

ubuntu - rabbitmq-server fails to start after hostname has changed for first time

I am using django-celery for my django project. Last day I have changed my computer's hostname (I am using Ubuntu 12.04, edited file '/etc/hostname'), and after next restart django-celery was failing with error Consumer: Connection Error: [Errno 111] Connection refused. Trying again in 4 seconds...After some research on this error I could find that, changing my host name caused this error from here. My rabbitmq startup log showsfile: /var/log/rabbitmq/startup_logActivating RabbitMQ plugins ...****************************************************...Read more

ubuntu - Docker build apt-get update failed to fetch with a 403

I've seen a few questions about this already but none are the same as my issue. I have a server running Ubuntu 16.04 in our data center so it is technically a virtual machine. I've installed Docker and now I'm trying to build the following Dockerfile:FROM ubuntu:16.04RUN apt-get updateThe update is failing. I get a bunch of this:Ign:35 xenial-updates/multiverse all PackagesIgn:36 xenial-backports/main amd64 PackagesIgn:37 xenial-backports/main all...Read more

ubuntu - Can't install docker properly

Installed docker1.6 from deb package but have a problem on running:sudo docker versionClient version: 1.6.2Client API version: 1.18Go version (client): go1.4.2Git commit (client): 7c8fca2OS/Arch (client): linux/amd64FATA[0000] Get http:///var/run/docker.sock/v1.18/version: dial unix /var/run/docker.sock: no such file or directory. Are you trying to connect to a TLS-enabled daemon without TLS?Any ideas how to fix or debug it?I didn't have external net on that machine so I downloaded docker deb by this script:#!/bin/bashdocker_version=1.6.1get_do...Read more