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Jayden StewardDecember 3, 2020December 3, 2020

Tips on reading the systemd journal logs

When looking at logs, you should almost always add the –utc flag or check server’s local time (timedatectl status). It should always be UTC (timedatectl set-timezone UTC). Why? Because when…

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Jayden StewardJune 24, 2020

Trojan horse

A Trojan horse is a computer program that is downloaded into a victim’s computer with the intention of disguising itself and collecting information, corrupting the computer, installing other malicious programs…

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Jayden StewardMay 15, 2020May 15, 2020

Business Operations simulations – Tackling the Gantt Chart

Many companies have a project management tool that allows them to create and maintain the Gantt Chart and other chart-based project management tools. But for those who have never used…

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Jayden StewardJanuary 22, 2020

NixOS Configuration

This is my compact version of NixOS Configuration chapter that can be found on the NixOS Manual. I’ve added and modified a few things. NixOS Configuration File The NixOS configuration…

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Jayden StewardJanuary 17, 2020January 22, 2020

Short introduction to Nix, NixOS and NixOps

NixOps: Declarative Provisioning and Deployment It is declarative. There is no difference between doing a new deployment or doing an upgrade of an existing deployment. The resulting machine configurations will…

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Jayden StewardOctober 30, 2019October 30, 2019

[NixCon 2019] Reading Nix expressions (notes)

This are my notes from the Reading Nix expressions talk in NixCon 2019. Nix package language has a similar syntax to the "JSON meets functional language concepts". E.g. you have…

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Jayden StewardOctober 28, 2019October 28, 2019

Create a new package in Go using Go Modules

Go Modules The purpose of this post is to give a very simple example and instructions on how to create a Go package with the Go Modules. Create a new…

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Jayden StewardOctober 11, 2019October 11, 2019

Nix package manager

Few good articles: Domen’s article Getting started with Nix package manager. Nix and Python. Nix and Python user guide. Nix – The Purely Functional Package Manager for Linux. Nix for…

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Jayden StewardSeptember 3, 2019October 17, 2019

Allow root access without password

First add a user: $ sudo adduser ubuntu $ sudo usermod -aG sudo ubuntu Edit sudoser file with visudo (edit the sudoers file in a safe fashion). $ sudo visudo…

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Jayden StewardAugust 22, 2019August 22, 2019

Install Apache & Set Up Virtual Hosts

This is just a quick step by step guide taken from DigitalOcean’s tutorial (see the references at the bottom). The main difference is that it has less explanation – so…

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