System & Network Admin

Author: Peter Enseleit Zero Configuration Networking (Zeroconf) is a standard method of establishing communications between computers and allowing them to advertise and access each others’ resources. It is designed to ease some of the complexities involved in computer networking — in fact, it is designed to remove them altogether, by requiring no user configuration at […]

Learn how to use the ServerName and ServerAlias directives to configure virtual hosts on an Apache web server.

Analyze telemetry data for builds

Docker is now widely used in DevOps due to its ease of use and intuitive user experience. In this series, you'll learn everything there is to know about Docker, from its internals to exploiting misconfigurations to securing your Docker environment.

Docker images are created from a Dockerfile that defines a base image and a series of instructions that add your own filesystem layers.

The Docker container driver runs BuildKit in a container image.

Have you ever wondered what it's like to create a docker base image that users can import and build on? This tutorial will show you how to make your own Docker base images from scratch in two different approaches.

Tired of iptables? With firewalld, you can easily open ports, block IP addresses, manage zones, and even add a GUI for easier management.

Bryan Lunduke posts a guide on running a DOS-based web server. Yes, DOS. And, while DOS may not be the high-up-time, massively scalable Web Server platform of the future… it’s still a heck of…

Multi functional app to find duplicates, empty folders, similar images etc.

Learn how to use Nginx as a forward proxy for any requested location.

This short from my Ship It! apperance created a firestorm of comments from folks who were unsatisfied with the lack of explanation behind my conclusion. Let me explain…

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.