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today's howtos

Submitted by Roy Schestowitz on Saturday 8th of May 2021 08:53:14 AM Filed under
HowTos
  • How to (not) use Docker to share your password with [crackers]

    By default this will copy everything in the current directory into the image. That everything might include a variety of secrets you didn’t intend to copy in: a .env file with password, for example.

    Deleting the file afterwards with RUN rm mysecret won’t help, because of the way Docker layers work. You need to make sure they never get copied in in the first place.

    Once the secret is in the Docker image, anyone who can access that image now has access to the secret. This is extra fun when the image is publicly available, but can still hurt you if the image is in a private repository that gets breached.

    How can you prevent copying in secrets by mistake?

  • How to Set a Time Limit on Linux Commands

    For system administrators who are responsible for controlling Linux servers, resource management is an important task to take care of. Sometimes, Linux commands take up a huge chunk of system resources and need to be stopped.

    Luckily, you can limit the runtime of your commands using utilities like timelimit. In this article, we will discuss why you should add time limits to your commands and how to add a time restriction using commands like timelimit and timeout.

  • How to Recover Deleted Files on Linux Using TestDisk

    Have you ever accidentally deleted a file on your Linux machine? Or maybe some program removed an important folder stored on your system storage. In such situations, data recovery software is the only fix to this issue.

    TestDisk is one such recovery tool developed for the Linux command line. In this article, we will discuss TestDisk and how to install it, along with a detailed guide on recovering deleted files and folders on your Linux system.

  • Protect Your Online Privacy With The Tor Browser Bundle

    For anyone looking to protect their privacy online, Tor is an invaluable tool. It is both one of the most reliable ways to hide your identity and one of the easiest to use on Linux.

    Tor works by routing your computer's internet traffic through their own network. This way, you can still access online resources as usual, but your network traffic appears to originate from the Tor network, your IP address remains hidden, and your data is encrypted in the process. With Tor, you can also access .onion domain names, and access the infamous dark web.

    In this guide, we'll show you how to download, install, and configure Tor on a Linux system. This will get you up and running in a few steps so you can anonymize your traffic and access Tor-specific websites.

  • How to Install Apache Tomcat on Rocky Linux 8

    Like Apache, Apache Tomcat is an HTTP server that serves HTTP and is also a servlet container. Apache is a general-purpose HTTP server that supports several advanced options that Tomcat does not. The Tomcat functions primarily as a servlet and JSP server for Java technologies for development purposes. Thus can be used to provide your Java servlets and JSPs. So, you can create your WAR file ( Web Application Archive) in your Java project and simply save it in the Tomcat deployment directory.

»

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today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

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  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.

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