# Brian Kimball posts tagged "Networking"

> Articles about Networking — systems engineering, development, and infrastructure from Brian Kimball.

- [Surveyor: A Field-Tested Network Discovery Tool for MSPs](https://brian-kimball.com/blog/surveyor-msp/index.md): From Raspberry Pi prototype to Wails desktop app: how Surveyor replaces manual nmap commands with stealth scanning and RFC 1918 auto-discovery.
- [Designing Fully Redundant Infrastructure: Physical and Logical Layers Explained](https://brian-kimball.com/blog/high-availability/index.md): How redundant compute, SAN mirroring, load balancers with CARP, and synchronous database clustering eliminate both hardware failures and maintenance windows.
- [Using Proxy ARP on pfSense to Bridge Remote Networks Across an IPSec Tunnel](https://brian-kimball.com/blog/pfsense-proxy-arp/index.md): How to answer ARP requests for remote IPs using pfSense Virtual IPs and port forwarding. Useful for VPN tunnel access without renumbering subnets.