Sysadmin Tools 🇺🇦

Advanced Cache (advCache)

High‑performance in‑memory HTTP cache & reverse proxy for latency‑sensitive workloads. Built in Go on top of fasthttp, with sharded storage, TinyLFU admission, background refresh, upstream controls, and minimal‑overhead observability (Prometheus + OpenTelemetry).

https://github.com/Borislavv/adv-cache #go #k8s #kubernetes #proxy

What's New in PostgreSQL 18 - a Developer's Perspective https://www.bytebase.com/blog/what-is-new-in-postgres-18-for-developer #postgres #postgresql #database

ZenTimings

A free, simple and lightweight app for monitoring memory timings on Ryzen platform. ZenTimings shows you all the important memory timings, voltages, Infinity Fabric and Memory Controller clocks. No matter the motherboard vendor, the app should help you see what DRAM parameters are applied.

https://github.com/irusanov/ZenTimings #cpu #tool #amd #ryzen #harware

nanokv

A distributed key value store in ~1,000 lines of code

https://github.com/PABannier/nanokv #rust #kv #redis

Lessons Learned Building Observability DX for HyperDX https://www.youtube.com/watch?v=BD4X0xQF-54 #clickhouse #observability #monitoring #monitoring

TernFS — an exabyte scale, multi-region distributed filesystem https://www.xtxmarkets.com/tech/2025-ternfs #storage #network #fs

Ceph on NVMe Made No Sense to Us—So We Built a 40x Better Alternative https://www.simplyblock.io/blog/simplyblock-versus-ceph-40x-performance #ceph #k8s #kubernetes #benchmark

The initial 0.0.1 version of the VictoriaTraces helm chart has been released! VictoriaTraces single VictoriaTraces cluster #observability #tracing #victoriatraces

AWS: introduction to the OpenSearch Service as a vector store https://rtfm.co.ua/en/aws-introduction-to-the-opensearch-service-as-a-vector-store #elasticsearch #databases #aws

0x.tools

A set of open-source utilities for analyzing application performance on Linux. It has a goal of deployment simplicity and minimal dependencies, to reduce friction of systematic troubleshooting. No need to install kernel modules or heavy monitoring frameworks.

https://0x.tools #ebpf #opensource #linux #tos

Talos Operator

talos-operator enables to bootstrap Talos Kubernetes clusters using custom controllers. It allows you to create and manage Talos clusters in different environments, such as bare metal, virtual machines or even in Kubernetes-in-Kubernetes method by using Talos' container support.

https://github.com/alperencelik/talos-operator #talos #linux #k8s #kubernetes #docker

VictoriaLogs: “rate limit exceeded” and monitoring ingested logs https://rtfm.co.ua/en/victorialogs-rate-limit-exceeded-and-monitoring-ingested-logs #victorialogs #loki #monitoring #observability

Debian 13, Postgres, and the US/* time zones https://rachelbythebay.com/w/2025/09/11/debtz/ #debian #postgres

httpjail

A cross-platform tool for monitoring and restricting HTTP/HTTPS requests from processes using network isolation and transparent proxy interception

https://github.com/coder/httpjail #network #tool #security #firewall

nlbw2collectd

This collectd lua plugin allows you to put Nlbwmon statistics directly to Collectd (luci-app-statistics). By default on Openwrt statistics are uploaded every 30 seconds, so it allows you to get pseudo realtime statistic about the traffic on your router.

https://github.com/mstojek/nlbw2collectd #openwrt #linux #monitoring #network #observability

VictoriaLogs: What if logs management became simple and performant? https://bit.ly/3KcJQmA #observability #monitorign #victorialogs

ChopChop

ChopChop is a CLI to help developers scanning endpoints and identifying exposition of sensitive services/files/folders

https://github.com/michelin/ChopChop #security #devsecops #tool

Campfire

Campfire is web-based chat application. It supports many of the features you'd expect, including: - Multiple rooms, with access controls - Direct messages - File attachments with - Search - Notifications (via Web Push) - @mentions - API, with support for bot integrations

https://github.com/basecamp/once-campfire #slack #opensource #chat #ruby

When Metrics Leak Secrets: Kubernetes CTF Lessons https://programmerprodigy.code.blog/2025/09/01/when-metrics-leak-secrets-kubernetes-ctf-lessons #k8s #kubernetes #security #grafana #victoriametrics #victorialogs

OpsiMate

The all-in-one platform for managing and controlling your organization - Everything in one place.

https://github.com/OpsiMate/OpsiMate #monitoring #observability #k8s #kubernetes #docker #linux