System & Network Admin

Blocking in the kernel's random-number generator (RNG)—causing a process to wait for "enough" entropy to generate strong random numbers—has always been controversial. It has also led to various kinds of problems over the years, from timeouts and delays caused by misuse in user-space programs to deadlocks and other problems in the boot process. That behavior has undergone a number of changes over the last few years and it looks possible that the last vestige of the difference between merely "good" and "cryptographic-strength" random numbers may go away in some upcoming kernel version.

Klunok is a smart versioning and automatic backup daemon for Linux.

A collection of configurable, fast Git status components for custom zsh themes

reNgine is an automated reconnaissance framework for web applications with a focus on highly configurable streamlined recon process via Engines, recon data correlation and organization, continuous monitoring, backed by a database, and simple yet intuitive User Interface. reNgine makes it easy for penetration testers to gather reconnaissance with minimal configuration and with the help of reNgine’s correlation, it just makes recon effortless.

NetDrive is a DOS device driver that allows you to access a remote disk image hosted by another machine as though it was a local device with an assigned drive letter. The remote disk image can be a…

What are home row mods? What is a mod-tap? What settings do you need to use? What are the alternatives? And more in this article...

It’s been a while since my last post, so today i have something bigger and – most probably – more usefull than usually. [Download link here] I present to you Mèdved (bear in serbi…

Read about what happens when you start experiencing bottlenecks within your organization and the solutions that can help you streamline your process.

Linux tricks can make even the more complicated Linux commands easier, more fun and more rewarding.

Curious about the power consumption and carbon footprint of an EC2 instance? As part of the first Measure challenge, get an estimation below.

Extension for Visual Studio Code - Support for the LikeC4 modeling language

ISC DHCP allows you to configure failover easily, with these steps.

Join us on a DNS debugging deep dive, starting from bisecting the problem to reproducing the issue and finding a fix.

Scripts for Streamlining Your Homelab with Proxmox VE

In this article, we’ll see how to use Kubernetes to create ephemeral environments that look like production in a cost-effective way.

Microservices often communicate with each other to fulfill complex business operations, creating security and scaling challenges. Mutual Transport Layer Security (mTLS) can help. Here's how to get started.

We have our services and main application all in Kubernetes, but part of our system offers workers to run workloads on. This used to be all managed directly in Kubernetes, but we want to be able to run on “remote” machines too. So the idea of orchestrating through Nomad came up. We have a POC running in 2 VM instances with a server on each. But I want to be able to scale up servers as needed easily and just keep our infra in Kubernetes if possible. I did find the nomad-on-kubernetes repository...

How to self host your own netboot.xyz in your environment

Understanding of Docker and Kubernetes networking starts with the basics - learn how to create and interconnect network namespaces using standard Linux tools.

How I organize and manage my system and user configs with NixOS and homemanager

An open-source, cross-platform terminal for seamless workflows