If you want to manage dns, you have a few options depending on the approach you want to take & what domain you want to host under
there's a powerdns instance being hosted at http://pdns.devhack.internal that is managing zones such as devhack.internal and devhack2.net, and adding subdomains under those is very easy and what you'de be used to doing with a normal registrar
There are many other domains managed by our core infra team and can be found and configured here: https://git.devhack.net/devhack/tf-external-dns/
or you could BYOD
long story short: if you want a domain to point at an IP address, that's an A Record. devhack.internal obviously only routes internally, so 10.213 addresses typically. devhack2.net is a different story and these should point at public addresses, so like our address on wlan0 is 23.143.44.2 and if you want to route traffic to our router, you'de point it at that