Overriding one name in a public domain without breaking the domain
A single internal zone for the domain makes the resolver authoritative for all of it, so mail and the public site start returning NXDOMAIN to everyone in the house.
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dns
A name should say what something is, not where it runs
I counted seven naming shapes on my own network for the same kind of thing, and one of the suffixes meant two different backends depending on which name you picked.
My Pi-hole had not been blocking ads for most of the network
An adlist with no group assignment applies to no client. Mine had 93,516 domains in it and had been doing nothing for as long as it had been there.
dnsmasq answers on the interface, not on the address
The gateway pings from inside the container and its DNS never answers. I got the diagnosis wrong twice, and the second time it was my own test that was lying.
Technitium DNS in a container on a UDM Pro Max
The UDM runs Debian and systemd, so it can run an nspawn container. What it cannot do is let that container talk to the router it is attached to.
Verifying SSH Key Fingerprints with DNS records
SSH Fingerprinting is a method to provide DNS records for key fingerprint verification of any client that logs into said machine.
Domain and Web hosting on different servers
If you want a website you need two things, the domain name and the web hosting. I ran into a small problem a while ago, the usual method of integrating them together is simple, just point the...