Sysadmin Tools 🇺🇦

Valerter

Valerter streams logs from VictoriaLogs in real-time and sends notifications with the actual log line plus extracted context (host, site, service, port, user, etc.). The goal is to put the key debugging context in the alert itself (full log line + fields), so you can start investigating right away.

https://github.com/fxthiry/valerter #victorialogs #alerts #observability

Vind

vind (vCluster in Docker) is a revolutionary way to run Kubernetes clusters directly as Docker containers. Built on top of vCluster, vind combines the power of virtual Kubernetes clusters with the simplicity of Docker, creating isolated Kubernetes environments that are perfect for development, testing, and CI/CD pipelines.

https://github.com/loft-sh/vind #docker #k8s #kubernetes

Scaling PostgreSQL to power 800 million ChatGPT users https://openai.com/index/scaling-postgresql #postgres #databases #ai

MikroTik: First Look and Getting Started https://rtfm.co.ua/en/mikrotik-first-look-and-getting-started #mikrotik #network #vpn

AliSQL

AliSQL is Alibaba's MySQL branch, forked from the official MySQL and used extensively in Alibaba Group's production environment. It includes various performance optimizations, stability improvements, and features tailored for large-scale applications

. https://github.com/alibaba/AliSQL #mysql #duckdb #sql

VictoriaLogs Basics: What You Need to Know, with Examples & Visuals https://victoriametrics.com/blog/victorialogs-architecture-basics #victorialogs #logs #observability #logs

frameworks for understanding databases https://www.bitsxpages.com/p/frameworks-for-understanding-databases #databases #sql #tsdb

Databases in 2025: A Year in Review https://www.cs.cmu.edu/~pavlo/blog/2026/01/2025-databases-retrospective.html #postgres #rds #mcp #mongodb

Using iperf3 and Prometheus for WAN link monitoring https://freebsd.uw.cz/2026/01/using-iperf3-and-prometheus-for-wan.html #iperf #freebsd #prometheus #monitoring #observability

iperf3 bandwidth exporter https://github.com/davidpasek/iperf3_bandwidth_exporter #iperf #freebsd #monitoring #network #observability

Terminal UI for Proxmox VE https://github.com/devnullvoid/pvetui #proxmox #tui #kvm

FreeBSD: Home NAS, part 7 – NFSv4 and use with Linux clients https://rtfm.co.ua/en/freebsd-home-nas-part-7-nfsv4-and-use-with-linux-clients #freebsd #nfs #linux

FreeBSD: Home NAS, part 6 – Samba server and client connections https://rtfm.co.ua/en/freebsd-home-nas-part-6-samba-server-and-client-connections #freebsd #nas #samba

FreeBSD: Home NAS, part 5 – ZFS pool, datasets, snapshots, and ZFS monitoring https://rtfm.co.ua/en/freebsd-home-nas-part-5-zfs-pool-datasets-snapshots-and-zfs-monitoring #freebsd #nas #zfs #monitoring

FreeBSD: Home NAS, part 4 – Local DNS with Unbound https://rtfm.co.ua/en/freebsd-home-nas-part-4-local-dns-with-unbound #freebsd #nas #dns

Sysbench for MySQL 5.6 through 9.5 on a 2-socket, 24-core server https://smalldatum.blogspot.com/2025/12/sysbench-for-mysql-56-through-95-on-2.html #mysql #benchmark

FreeBSD: Home NAS, part 3 – WireGuard VPN, Linux peer, and routing https://rtfm.co.ua/en/freebsd-home-nas-part-3-wireguard-vpn-linux-peer-and-routing #freebsd #nas #wireguard #vpn #linux

FreeBSD: Home NAS, part 2 – introduction to Packet Filter (PF) firewall https://rtfm.co.ua/en/freebsd-home-nas-part-2-introduction-to-packet-filter-pf-firewall #freebsd #nas #security #firewall

FreeBSD: Home NAS, part 1 – configuring ZFS mirror (RAID1) https://rtfm.co.ua/en/freebsd-home-nas-part-1-configuring-zfs-mirror-raid1 #freebsd #nas #zfs