Changing the default port for iPython notebook server / Jupyter

I am trying to run an ipython notebook / jupyter server on a machine behind a firewall. The only port which is open is port 80. So was wondering how I can change the default port from 8890 to...

Running docker container : iptables: No chain/target/match by that name

I'm trying to run a container but I get the following issue : Error response from daemon: Cannot start container b005715c40ea7d5821b15c44f5b7f902d4b39da7c83468f3e5d7c042e5fe3fbd: iptables failed:...

enable to program FPGA

I'm trying to program the FPGA and boot over an SD card in xc7z020-clg400-1 zynq chip inside parallella, I can't figure out where is the problem, I have did vivado design , generate bitstream,...

Ubuntu / DigitalOcean - Unable to fetch packages to install git on a fresh install

Just started with a fresh install of Ubuntu 14.04 on my digitalocean droplet and I'm trying to install git. My first attempt failed to install some packages - [email protected]:~# sudo apt-get install...

yum update throws Could not create lock at /var/run/yum.pid on centos 6.5

I have deployed a fresh CentOS 6.5 instance on my VMServer with developement-tools, X11 and few other packages installed. The first day, it seems everythings works fine. Later I couldn't use yum...

Puma Error: Cannot assign requested address - bind(2) for "10.0.2.2" port 3000 (Errno::EADDRNOTAVAIL)

I change webrick to puma in my development environment, but I can't run rails server, look my error: ➜ r4u rails s => Booting Puma => Rails 5.0.0.1 application starting in development on...

Why CUPS ships a web server instead of using httpd?

CUPS implements its own web server to host CGI programs on http://localhost:631 server: https://github.com/apple/cups/blob/master/cups/http.c CGI pages:...

What is WPCups.exe?

I downloaded Microsoft SDK and Visual Studio 2015 on Windows 10 and a shortcut to file WPCups.exe showed up on my desktop. It's located in...

Job for nginx.service failed because the control process exited with error code

I follow the steps to setup a nginx server. After I create example.com.config and symbolic link for each server block in the sites-enabled directory. My nginx can't start. I can't restart nginx...

Cups-2.2.5 web page display stopped "Filter failed"

I have built Cups-2.2.5, also built cups-filter-1.17.8 and all its dependency. My platform info: mips-linux When i try to "Print Test Page" on web page, it prompt "stopped Filter failed". Then i...

Cloudera: Installation failed. Failed to receive heartbeat on CDH 5.14 cluster installation on singleNode from agents

I am trying to install cloudera CDH 5.14.0. and facing below error during Cluster Installation. Installation failed. Failed to receive heartbeat from agent. Ensure that the host's hostname is...

SQuirreL SQL connection refused error

I'm a bit of a newb when it comes to Linux and Informix so please bear with me. I am running the latest version of SQuirreL and trying to connect to the DB on my server running on VirtualBox with...

Dockerfile RUN lpadmin to add a printer not working in the built image?

I want to add a printer in Dockerfile RUN command, so this is my Dockerfile FROM dassh/eline:base MAINTAINER dassh # start cups service is necessary to run lpadmin command RUN service cups start...

XAMPP Another web server is already running. with attemps

I install XAMPP with Ubuntu 18.04 and got the XAMPP: Another web server is already running. and cannot run the Apache server. After some research I tried restart all of the process again with...

Open files from Linux bash shell on Windows 10

Using Windows 10 and I have the Linux Bash Shell to use with Jekyll. All I am looking to do is open the explorer or filesystem to copy some files. Does anyone know how you browse the file explorer...

Mongodb service fails after reboot

I am trying to setup a replicaset for my dev environment, and have three machines running debian 9.3 stretch with a mongod service. The replicaset is working, and all seems okay. But when I reboot...

cross compile Qt5.10.1 Raspberry pi3 B+ stretch

I am trying to cross compile Raspberry pi3 B+; stretch software 2018-06-27 release, using Qt5.10.1, through Linux ubuntu 64bit according to this steps: https://wiki.qt.io/RaspberryPi2EGLFS For...

Building static Qt 5.12 by mingw, can't found GLES2

I got following error when building static Qt. ....\include/QtGui/../../src/gui/opengl/qopengl.h:111:13: fatal error: GLES2/gl2.h: No such file or directory # include <GLES2/gl2.h> Here is...

Rails & Docker: configure bundler to run bundle install in a docker build for Rails.4.2.6?

I am having so much trouble with docker. It seems to be a pattern. I have a dockerfile which installs Node.js and Yarn from source repositories fine. I install ruby from the get-apt repositories...

Keep Python script listen in background

I made a really simple python script that listens on a ip + port. I have a network barcode scanner that sends a orderID on that ip + port combination and this script will get the label from a api...

OS X or home-brew? How do I check

Seems like someone is playing a prank on me. My computer settings change between days and I'm certain that this version is a home-brew and not the original OS X. Recovery/re-installation doesn't...

Error: GDBus.Error:org.freedesktop.systemd1.UnitMasked: Unit -.mount is masked

On my fresh install of Pop!_OS 19.04 I tried executing sudo apt update followed by sudo apt upgrade and this error happened: Error: GDBus.Error:org.freedesktop.systemd1.UnitMasked: Unit -.mount is...

Static compile Qt 5.13.1 with -openssl-linked using MinGW (Windows 10)

Re: Static compilation. Qt 5.12.3 Good day Qt Forum suggested I create a new post as the linked one is 'quite old' This essentially serves as a confirmation of some 'bug', what the exact problem...

Mysql will not install due to mariadb install but mariadb is not installed

Been trying for hours to get mysql installed but it failed due to a conflict. This is a brand newly installed CentOS 8 x64 (latest) and it's fully updated. There are no custom packages installed...

docker run nginx:latest hangs indefinitely

edit: other containers run normally. docker run hello-world works fine. I am trying to run the latest nginx docker image. It hangs indefinitely. I have tried this on 2 separate fresh install...

Minikube / Docker proxy is using port 80

I am using minikube in no-driver mode ( sudo minikube start --vm-driver none ) and I can't free port 80. With sudo netstat -nlplute I get: tcp 0 0 192.168.0.14:2380 0.0.0.0:* ...

How to fix the errors encountered while processing installation

I wanted to reinstall java which was accidently deleted, using this post. As mentioned in the above post on runningsudo apt install default-jre, I got this error: Reading package lists......

Qt for Raspberry pi: "Could not find DRM device!"

I've built Qt (with cross-compiler) from Ubuntu VM to Raspbian (Raspberry pi model 3 B+), so it can deploy apps via ssh. Qt config: Building on: linux-g++ (x86_64, CPU features: mmx sse...

slurmd.service is Failed & there is no PID file /var/run/slurmd.pid

I am trying to start slurmd.service using below commands but it is not successful permanently. I will be grateful if you could help me to resolve this issue! systemctl start slurmd scontrol update...

Proper sudoers user / session setup for xrdp and systemd-modules-load / auditd fails in a WSL2 openSUSE-Leap-15.2 environment

I've managed it to successfully run xrdp in an openSUSE-Leap-15.2 WSL 2 Linux subsystem on my Windows 10 64 PC. My Linux knowledge is not that great. I use KDE (startplasma-x11) as desktop for...