Liu Zhen (liuzhen932)

About

Network engineer and self-hosted services enthusiast. Running autonomous system infrastructure and experimenting with BGP, DNS, and distributed systems. 1.3.6.1.4.1.64517

Services

Network

Operating AS213891, primarily used for experimental networking. more info

Tech Stack

Linux · Docker · BGP · BIRD2 · BIND9 · Caddy · Wireguard

Projects

2018-present
Minecraft Server

Multi-instance game server with automated backups and monitoring

2022-present
Self-hosted Services

Deployed Git server, DNS infrastructure, and BitTorrent tracker

2024-present
AS213891 Network

Building experimental BGP network infrastructure with multiple peering sessions

2025-present
DNS Infrastructure

Implemented both recursive and authoritative DNS servers with DNSSEC

Network Information

AS Number AS213891
Type Experimental / Educational
IPv6 Support Yes (only)
Geofeed /geofeed.csv

Skills & Technologies

Networking: BGP, Babel, VLANs, VPN (Wireguard, OpenVPN), Network Security

Virtualization: Docker, KVM/QEMU, LXC

Services: Caddy, BIND9

Monitoring: Prometheus, Grafana, SNMP

Programming: Go, TypeScript, Rust, Bash

Certifications & Learning

Self-taught network engineer with focus on practical implementation and hands-on experience. Active in network operator communities and open-source projects.

Interests

Network protocols · Distributed systems · Self-hosting · Privacy · Open source · Automation · Homelab · IPv6 deployment · BGP routing · DNS architecture · Game Play

PGP Fingerprint

2647 611C 3597 15FA 4E10 F6E3 6756 5966 6666 6666

View on OpenPGP Keyserver

SSH Public Key

ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINMIp5E9SDqZcfJ02msIWpHc5+v/8VtGcirpi2+3ClAR

Add it to your ~/.ssh/authorized_keys file :D

Contact

Email: [email protected]

Fediverse: @[email protected]

1.3.6.1.4.1.64517