System & Network Admin

A simple and easy-to-use OIDC provider that allows users to authenticate with their passkeys to your services.

Learn how to use and administer GitLab, the most scalable Git-based fully integrated platform for software development.

AWS provides a feature that allows mirroring your infrastructure’s network traffic to a separate system for analysis purposes. This is called AWS Traffic Mirroring. If you’d like to use…

The problem This week at work while upgrading a hypervisor from Bullseye to Bookworm, the automatic provisioning failed. Upon closer inspection, it became clear the failure was caused by the machine not having network connectivity after the first step of provisioning. Upon closer inspection, things became clearer: the predictable interface names had changed. On a Bullseye host of the same model we have: 2: enp65s0f0: BROADCAST,MULTICAST,UP,LOWER_UP mtu 1500 qdisc mq master ovs-system state UP group default qlen 1000 link/ether f8:f2:1e:xx:xx:xx brd ff:ff:ff:ff:ff:ff inet6 fe80::faf2:1eff:xxxx:xxxx/64 scope link valid_lft forever preferred_lft forever 3: enp65s0f1: BROADCAST,MULTICAST,UP,LOWER_UP mtu 1500 qdisc mq master ovs-system state UP group default qlen 1000 link/ether f8:f2:1e:xx:xx:xx brd ff:ff:ff:ff:ff:ff inet6 fe80::faf2:1eff:xxxx:xxxx/64 scope link valid_lft forever preferred_lft forever On the Bookworm host we have:

Understand predictable network interface naming in Talos Linux and learn when to use or disable it for consistent configurations.

In the world of containerization, Docker has emerged as a dominant platform, enabling developers to package applications and their dependencies into lightweight, portable containers. Alpine Linux, a lightweight and security-focused Linux distribution, has become a popular choice as a base image for Docker containers. Its small size, fast boot times, and minimal resource usage make it ideal for building efficient and secure Docker images. This blog post will explore the fundamental concepts of Alpine Linux Docker, its usage methods, common practices, and best practices.

Use different network interfaces for Docker (compose) services and containers

Your music is everywhere... now you don't have to be.

The proper work-around to pull images from GitHub's Container Registry and use them in Synology's Container Manager, with SSH and Docker CLI.

Open source monitoring for networks, servers and more. Set up custom checks, get alerts fast and keep full control of your infrastructure.

Browse all Proxmox VE community scripts.

A build tool and environment manager

Simple, fast, and green CI and caching for nix projects

Replace port numbers with stable, named .localhost URLs. For humans and agents.

Complete guide to install and configure pgvector for PostgreSQL 16. Build AI-powered vector databases for semantic search, RAG applications, and embeddings storage with step-by-step examples.

When people talk about Retrieval-Augmented Generation (RAG), they often mention vector databases like Pinecone, Weaviate, or FAISS. These…

The Terraform plugin cache does not support concurrent terraform inits. Here’s how we worked around that with OverlayFS.

Terraform init, plan and apply have distinct performance bottlenecks. Here’s a breakdown of each phase, what makes it slow, and what you can do about it.

A self-hosted bookmarking service that is designed to be minimal, fast and easy to set up.

One app seamlessly integrates everything into your desktop.

Loki is a horizontally scalable, highly available, multi-tenant log aggregation system inspired by Prometheus.

Join Smallstep's open-source community. Contribute to identity and security tools that improve enterprise workflows worldwide.

A feature-rich command-line audio/video downloader - yt-dlp/yt-dlp

EDIT BY MAINTAINER: Fixed in latest release. Update! Checklist I'm reporting that yt-dlp is broken on a supported site I've verified that I have updated yt-dlp to nightly or master (update instruct...

GitHub Gist: instantly share code, notes, and snippets.

Stop winging your hosting migration. Learn how to make a plan that turns high-stakes moves into boring successes.

Database routine libraries