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today's howtos

Submitted by Roy Schestowitz on Saturday 22nd of January 2022 11:02:04 PM Filed under
HowTos
  • Command to Permanently Disable SELinux on AlmaLinux 8

    Let’s run a few commands to disable or turn off the SELinux on AlmaLinux 8 using the command terminal.

    Well, in a conventional system, there are many different programs that all need to run with root privileges in order to be able to do their job, but should not have full root privileges (why should Apache have access to the mail pool files, for example?). SELinux is based on the TE principle (Type Enforcement): all resources are assigned to specific domains and access rules are defined on them.

  • How to Disable or Turn Off SELinux on Rocky Linux 8 - Linux Shout

    Let’s run a few commands to disable or turn off the SELinux on Rocky Linux 8 using the command terminal.

    SELinux is now the standard in the Linux environment when it comes to the use of mandatory access control. Initially, the system had a reputation for being difficult to configure and only usable for experts. Those days are over. SELinux can now also be used and configured by “ordinary” admins.

    Well, in a conventional system, there are many different programs that all need to run with root privileges in order to be able to do their job, but should not have full root privileges (why should Apache have access to the mail pool files, for example?). SELinux is based on the TE principle (Type Enforcement): all resources are assigned to specific domains and access rules are defined on them. In short- all files are labeled, i.e. assigned to a specific domain; this means, for example, that all files belonging to Apache can be assigned the “apache_t” type. The Apache binary is also plugged into this domain. If the rest of the system is set up correctly, Apache can only access the data that is in its domain; any access to files located within other domains (e.g. “postfix_t”) is prevented by the kernel.

    Hence, if any service is running with the wrong security policy, files in the incorrect domain, any security breach detection- SELinux restricts the access/function of that particular file or services.

  • How to Rename a Directory or Multiple Directories in Linux - buildVirtual

    File-system management is an important skill to have if you are working with Linux systems often. If you are from a Windows background, you may not yet be familiar with the ways and commands to rename directories on Linux. This article aims to help you out if you need to rename a directory on Linux, or multiple directories at the same time. We will start by giving some simple examples of how to do so using the command line tools commonly available on Linux distributions, then move onto some more advanced examples. I’ll be using my CentOS system for the examples in this article, but it will be much the same for other distributions.

    The command most often used to rename directories in Linux is the mv command, so that is where we will start!

  • GitBash not prompting for MFA in AWS CLI - Kernel Talks

    A quick post on how to resolve an issue with Gitbash that prevents MFA prompts while using AWS CLI.

  • thomas.apestaart.org » Quick way to process an Inbox folder in Obsidian

    Obsidian’s Gems of the Year 2021 nomination has been a great source of cool ideas to add tweaks to my Obsidian setup.

    In particular, Quick Capture (mac/iOS) and Inbox Processing was a great gem to uncover as I try and implement the weekly review stage of my Second Brain/PARA setup!

    I noticed that the archive/move script was a little slow, taking several seconds to open up the dialog for selecting a folder, breaking my flow. I checked the code and noticed it built a set of folders recursively.

»

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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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