Lukas
Sysadmin, coder, CIO at one company and CEO of my own. Linux, Windows Server, game servers — I write down what I set up and what broke.
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BungeeCord config.yml — Every Option Explained
Full breakdown of BungeeCord's config.yml — listeners, servers, IP forwarding, priorities, the options nobody documents and the ones that bite you.
Running Minecraft -
Velocity Minecraft Proxy — Setup From Scratch in 10 Minutes
Stand up a Velocity proxy on Linux from zero — install, velocity.toml, modern IP forwarding to Paper backends, systemd unit, firewall. The clean install, no BungeeCord baggage.
Running Minecraft -
Restic Backups to S3 / MinIO — Encrypted, Deduplicated, Restore-Tested
Real backup setup with Restic — encrypted offsite to S3 or self-hosted MinIO, dedup, retention, and the restore-drill that proves your backups actually work.
Running Linux -
Active Directory Part 3 — GPO Hardening for the Whole Domain
The GPOs every domain should have — password policy, account lockout, audit, RDP restrictions, SMBv1 / LLMNR / NTLMv1 kill, BitLocker enforcement. The defaults are not enough.
Running Windows Server -
Active Directory Part 2 — OUs, Users, and GPO Basics
Build a sane AD structure — OU layout, user and group provisioning via PowerShell, first GPO. The patterns that scale from 10 users to 1000.
Running Windows Server -
Active Directory Part 1 — Promoting Your First Domain Controller
Stand up a new Active Directory forest from scratch. Install AD DS, promote the first DC, DNS integration, the post-promo checks. PowerShell-driven, no GUI.
Running Windows Server -
Proxmox + Cloud-Init — Spinning Up an Ubuntu VM in 30 Seconds
Build a reusable Ubuntu cloud-image template on Proxmox with cloud-init. Clone, set hostname, IP, SSH key, boot — full VM in under a minute. The setup I run on node1.
Running Linux -
Netdata on Ubuntu — Live Server Metrics in 5 Minutes
Install Netdata on Ubuntu for per-second server metrics. Install, bind to localhost, SSH-tunnel the dashboard, ship alerts to Discord.
Running Linux -
WireGuard VPN on Ubuntu — the Setup I Actually Use
Minimal WireGuard setup on Ubuntu. Server config, one client, UFW rule, QR code for the phone. The version I run on my home-lab jumpbox.
Running Security -
BungeeCord / Waterfall Setup — Running a Minecraft Server Network
BungeeCord network on one Linux box: proxy, Paper backends on localhost, IP forwarding, systemd template, DNS. Plus why Waterfall is EOL.
Running Linux -
PowerShell for Sysadmins — A Cheatsheet From My Daily Use
The PowerShell snippets I actually use every day on Windows Server — pipeline filters, remoting, services, event logs, scheduled tasks, error handling.
Running Windows Server -
Minecraft Java Server on Linux — Paper, systemd, and Memory Tuning
Run a Paper Minecraft server on Linux the clean way: own user, Java, systemd unit, Aikar's flags, sane RAM sizing, RCON console, firewall and safe backups.
Running Linux -
Valheim Dedicated Server on Linux — the One Thing People Get Wrong
Valheim dedicated server on Ubuntu via SteamCMD. Systemd unit, port 2456-2458, the SteamAppId thing that trips everyone up, backups that actually survive crashes.
Running Gameserver -
Vanilla vs Spigot vs Paper — Which Minecraft Server Should You Use?
Vanilla, Spigot, Paper, Purpur, Folia, Fabric, Forge, NeoForge compared: plugins vs mods, performance, vanilla mechanics, what to pick.
Running Minecraft -
SSH Hardening Checklist for Ubuntu Servers
Lock down SSH on Ubuntu 24.04 without locking yourself out: keys only, no root, the cloud-init drop-in trap, socket activation, verification.
Running Linux -
Palworld Dedicated Server on Linux with SteamCMD
Palworld dedicated server on Ubuntu via SteamCMD: native Linux build, systemd unit, the empty PalWorldSettings.ini trap, steamclient.so fix, backups.
Running Linux -
Join Windows Server to AD Domain with PowerShell
Domain-join a Windows Server with Add-Computer: point DNS at the DC first, land in the right OU, verify the secure channel, fix the usual join errors.
Running Windows Server -
rsync Backups That Actually Work — No Excuses
rsync backups that hold up: trailing-slash rules, dry runs, hard-link snapshots with --link-dest, rotation, pull over SSH with rrsync, a timer.
Running Linux -
Reset a Forgotten Windows Administrator Password — the Utilman Trick
You're staring at a Windows login screen. You don't know the password. You own the machine. You need back in. This is the utilman trick — a classic…
Running Windows Server -
How to Install Mods on a Hytale Server (Full Guide)
Installing mods on a Hytale server is short enough to fit in a tweet, but most new operators still get tripped up by three things: which file goes where,…
Running Gameserver