System & Network Admin

This article explains how to use commands like copy, and also use troubleshooting commands like show and debug.

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nmapUnleashed emerges as a powerful CLI wrapper enhancing Nmap's capabilities for penetration testers and network auditors.

I still remember the day a minor security patch took down an entire staging cluster. Nothing dramatic—just a few manual tweaks on “that one server.” But the environment never matched production again, and the team lost two days chasing a phantom bug. That was my turning point: if infrastructure matters as much as application code, […]

Terraform and configuration management tools are both essential components of modern infrastructure management, but they serve distinct…

Installation and configuration of VRRP on Linux using Keepalived to provide IP redundancy.

Large container images were causing slow cold starts and poor auto-scaling for Grab's data platforms. This post explores how we implemented Docker image lazy loading with Seekable OCI (SOCI) technology, to achieve faster image pulls and startup times. The blog discusses how lazy loading works, the technology behind SOCI and eStargz, and finally how this configuration delivered a 60% improvement in download times.

Stream YouTube music without ads from your terminal. Open source CLI music player with playlist support and MP3 downloads.

This tutorial looks at how to set up Tailscale on a Synology NAS. Tailscale is a configure-less VPN that lets you access your local devices securely!

Homebrew’s package index

A sensible NixOS Xfce configuration. GitHub Gist: instantly share code, notes, and snippets.

I would rather use copyparty to browse the files I have on my Synology DiskStation than log into Synology's homepage and use their crappy DSM File Station. However, I'm not sure how I would configu...

If you need to work with BGP in your AWS VPCs—so that BGP-learned routes can be injected into a VPC route table—then you will likely need a VPC Route Server. While you could set up a VPC Route Server manually, what’s the fun in that? In this post, I will walk you through a Pulumi program that will set up a VPC Route Server. Afterward, I will discuss some ways you could check the functionality of the VPC Route Server to show that it is indeed working as expected.

A privacy-friendly messaging app for the desktop. It uses the XMPP protocol and provides a clean UI with modern features.

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A lightweight, fast, terminal-based markdown research tool inspired by Obsidian. Built with Rust.

Podman also has a compose tool that allows you to work with Docker compose like files. Here's all you need to know about it.

In this article, learn how to enable AI-powered document editing on Ubuntu using ONLYOFFICE Desktop Editors and Ollama for a local AI-assistant.

Your new project really could use a block device for Linux. File systems are easy to do with FUSE, but that’s sometimes too high-level. But a block driver can be tough to write and debug, esp…

Everything you need from a Managed SIEM, nothing you don’t. We cut complexity and unpredictable pricing with 24/7 managed security. Flip the script today.

I cannot get wifi to work on a fresh nixos install. Hardware: Dell Latitude E7250. Ethernet connection works out-of-the-box. Desktop Env: Budgie configuration.nix (extract) users.users.xa = { isNormalUser = true; description = "xa"; shell = pkgs.fish; extraGroups = [ "networkmanager" "wheel" ]; packages = with pkgs; [ ]; }; nixpkgs.config.allowUnfree = true; networking.networkmanager.enable = true; networking.wireless.enable = false; # The wiki seems to say that...

Replace complex RAG pipelines with a single portable file that gives every agent instant retrieval and long-term memory.

Learn to edit the hosts.allow file on Linux for TCP wrapped services. Discover syntax, rules, and examples for network access control.