local.frz.sh

Wildcard DNS that points back to your own machine.

What it is: any hostname under *.local.frz.sh resolves to 127.0.0.1. This lets you use “real” hostnames in local configs (routing, vhosts, service discovery) without touching /etc/hosts.

Example

Running Kafka locally? Set its advertised hostname to kafka.local.frz.sh and it will resolve to localhost.

$ dig +short kafka.local.frz.sh
127.0.0.1

Why it's useful:

Keep configs portable (hostnames work the same across repos and machines).
Play nicely with proxies/routers that rely on Host headers.
No more stale /etc/hosts entries to remember (or forget).