A knowledge base for homelab enthusiasts, IT security analysts, and Linux practitioners — practical guides for tasks you do once and forget before the next time. https://wiki.b717.dev/ Sebastian Heisehttps://github.com/bastii717/b717-docsen Fri, 12 Jun 2026 10:51:24 -0000 Fri, 12 Jun 2026 10:51:24 -0000 1440 MkDocs RSS plugin - v1.19.0 None https://wiki.b717.dev/ Stop nginx from answering requests to the bare server IP: a catch-all default_server with return 444 and ssl_reject_handshake prevents domain leaks via TLS certificates and keeps scanners out of your vhosts. https://wiki.b717.dev/security/nginx-block-direct-ip-access/ Fri, 12 Jun 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/security/nginx-block-direct-ip-access/ Install ModSecurity v3 and the OWASP Core Rule Set 4 on nginx mainline (Ubuntu) from scratch: build the connector module, configure anomaly scoring, and move safely from DetectionOnly to blocking mode. https://wiki.b717.dev/security/nginx-modsecurity-crs-setup/ Fri, 12 Jun 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/security/nginx-modsecurity-crs-setup/ Protect login endpoints and APIs on nginx with limit_req and limit_conn: zone configuration, burst and nodelay explained, dry-run calibration, correct 429 responses, and real client IPs behind a proxy. https://wiki.b717.dev/security/nginx-rate-limiting/ Fri, 12 Jun 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/security/nginx-rate-limiting/ Sync the Spamhaus DROP list into a Cloudflare custom IP list via API and block it with a single WAF rule — works on the Free plan, no rule-size limits, fully automated with a daily cron job. https://wiki.b717.dev/security/spamhaus-drop-cloudflare-waf/ Fri, 12 Jun 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/security/spamhaus-drop-cloudflare-waf/ Automatically block all traffic from the Spamhaus DROP list on Linux using nftables sets: a daily sync script fetches the JSON feeds, rebuilds the set atomically, and protects every service on the host. https://wiki.b717.dev/security/spamhaus-drop-nftables/ Fri, 12 Jun 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/security/spamhaus-drop-nftables/ How to connect a non-Telekom router to Deutsche Telekom FTTH. Covers PPPoE credentials, VLAN 7 configuration, and step-by-step setup for ASUS, Ubiquiti UniFi, and OpenWrt routers. https://wiki.b717.dev/homelab/telekom-ftth-custom-router/ Sat, 30 May 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/homelab/telekom-ftth-custom-router/ Practical guide to WSL2: installation, updates, file path navigation, configuration with wsl.conf and .wslconfig, systemd, interop with Windows, and quality-of-life tips. https://wiki.b717.dev/linux/wsl/ Sat, 30 May 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/linux/wsl/ Step-by-step guide to installing a TeamSpeak 3 server on Ubuntu and running it as a systemd service. Covers user setup, binary extraction, license acceptance, and admin token retrieval. https://wiki.b717.dev/selfhosted/teamspeak3-install/ Sat, 30 May 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/selfhosted/teamspeak3-install/ Shell script to upgrade a TeamSpeak 3 server on Ubuntu: stops the service, backs up the installation, extracts the new release, and restarts. Covers pitfalls with bzip2, backup paths, and orphaned processes. https://wiki.b717.dev/selfhosted/teamspeak3-upgrade/ Sat, 30 May 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/selfhosted/teamspeak3-upgrade/ Diagnose and fix RDP session drops in Proxmox Windows 11 VMs: CPU limit, missing VirtIO-GPU driver, RAM ballooning, and SCSI driver bugs. https://wiki.b717.dev/homelab/proxmox-windows11-rdp-drops/ Mon, 25 May 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/homelab/proxmox-windows11-rdp-drops/ How to flush swap on a Proxmox VE host without rebooting, and how to reduce swappiness so swap stays empty under normal load. https://wiki.b717.dev/homelab/proxmox-clear-swap/ Sun, 24 May 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/homelab/proxmox-clear-swap/ Use Cloud-Init in Proxmox to automate VM provisioning. Covers image preparation, template creation, network and SSH configuration, cloning, and custom user-data snippets with practical examples. https://wiki.b717.dev/homelab/proxmox-cloud-init/ Sun, 24 May 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/homelab/proxmox-cloud-init/ How to reset a lost root or user password inside a Proxmox LXC container without the old password — using pct enter from the host. Explains why this works and how the LXC access methods differ. https://wiki.b717.dev/homelab/proxmox-lxc-password-reset/ Sun, 24 May 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/homelab/proxmox-lxc-password-reset/ Step-by-step guide to creating and installing a Windows 11 virtual machine in Proxmox VE. Covers VM settings, VirtIO driver loading, 24H2 gotchas, and post-install configuration. https://wiki.b717.dev/homelab/proxmox-windows11-vm/ Sun, 24 May 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/homelab/proxmox-windows11-vm/ Set up Apt-Cacher NG as a caching proxy for apt packages on your LAN. Covers server installation, HTTPS passthrough, UFW, client proxy configuration, and the web admin interface. https://wiki.b717.dev/linux/apt-cacher-ng/ Sun, 24 May 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/linux/apt-cacher-ng/ How to use the at command to run shell commands or scripts once at a specific time. Covers installation, scheduling, listing, and removing jobs. https://wiki.b717.dev/linux/at-command/ Sun, 24 May 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/linux/at-command/ Install Docker Engine and the Docker Compose plugin on Ubuntu using the official apt repository. Covers manual step-by-step installation, user and group setup, and a fully automated bash script. https://wiki.b717.dev/linux/docker/ Sun, 24 May 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/linux/docker/ Quick reference for frequently needed Linux sysadmin commands — system info, resources, processes, networking, users, and package management. With notes on when to reach for each. https://wiki.b717.dev/linux/linux-commands/ Sun, 24 May 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/linux/linux-commands/ How to extend an LVM logical volume on Ubuntu — from free VG space or a new disk — and resize ext4 or XFS filesystems. https://wiki.b717.dev/linux/lvm-extend/ Sun, 24 May 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/linux/lvm-extend/ Set up msmtp as a lightweight SMTP client on Ubuntu servers so scripts and cron jobs can send email alerts. Covers installation, configuration, aliases, and testing. https://wiki.b717.dev/linux/msmtp/ Sun, 24 May 2026 00:00:00 +0000 B717 Knowledge Basehttps://wiki.b717.dev/linux/msmtp/