Tux Machines

today's howtos

Posted by Roy Schestowitz on Mar 14, 2023

=> Podcasts: Linux Saloon, Linux Unplugged, and GNU World Order | Databricks, Web-based SQL Database Managers, and OData

How to easily deploy a full-stack application in Portainer with templates

=> ↺ How to easily deploy a full-stack application in Portainer with templates

Deploying a complex Docker stack isn't nearly as challenging as you think, at least when Portainer is your GUI of choice. Find out how easy this is with Portainer templates.

How to Install Puppet Master and Agent in RHEL-Based Systems

=> ↺ How to Install Puppet Master and Agent in RHEL-Based Systems

Developed by Puppet Lans, Puppet is an open-source configuration management tool used for automating and centralizing the configuration of infrastructure such as servers just like Ansible and Chef

openQA: Could not configure /dev/net/tun (tap3): Operation not permitted

=> ↺ openQA: Could not configure /dev/net/tun (tap3): Operation not permitted

I recently encountered a new interesting openQA issue: [2023-03-13T14:18:22.651705+01:00] [warn] [pid:18929] !!! : qemu-system-x86_64: -netdev tap,id=qanet0,ifname=tap3,script=no,downscript=no: could not configure /dev/net/tun (tap3): Operation not permitted This is an error that you likely are encountering on a older openQA instance, after you setup multimachine jobs but haven’t used them in a while.

How to extract embedded images from a PDF

=> ↺ How to extract embedded images from a PDF

Hello, friends. In this simple post, you will learn how to extract embedded images from a PDF. Occasionally, it is necessary to extract the images that are inside a PDF file. This may seem difficult, but it is easier than you think.

How to Install and Run Node.js on All Linux Distributions (Ubuntu, Fedora, Arch)

=> ↺ How to Install and Run Node.js on All Linux Distributions (Ubuntu, Fedora, Arch)

Here you will find four different ways to install Node.js and the npm package manager. Which one will you choose? Node.js is not a programming language but a JavaScript runtime for backend development, and that was made in the Chrome v8 JavaScript engine.

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