← All skills

Skill 03

Networking

Business and homelab networks using VLANs, managed switching, VPNs, DNS, and network diagnostics.

TCP/IPDNSDHCPVLANsUniFiVPNWiresharkNmap

01

ProGranite network

I redesigned and deployed ProGranite’s network using a UniFi Dream Machine Pro, Layer 3 switches, wireless access points, and fiber uplinks. The project increased available throughput from 500 Mbps to 1 Gbps and improved segmentation and reliability.

  • VLAN segmentation and inter-VLAN policies
  • Layer 3 switching and fiber uplinks
  • Wireless access-point management
  • VPN remote access
  • Static addressing for CNC and business systems

02

Homelab networking

The homelab is segmented by function and supports virtualized servers, storage, container workloads, and externally published services. I manage internal DNS, TLS routing, VPN connectivity, firewall rules, and service troubleshooting.

  • Tagged and untagged VLANs
  • Traefik reverse proxy and certificate management
  • WireGuard and Tailscale connectivity
  • Cloudflare DNS and proxy services
  • NFS storage traffic between systems

03

Diagnostics

I use packet and service-level tools to identify faults across addressing, name resolution, routing, firewall rules, and application connectivity.

  • ping, traceroute, dig, and nslookup
  • Nmap and netcat
  • tcpdump and Wireshark
  • Switch, firewall, and service logs