DNS

I noticed that the Web UI of the Pi-hole I run at home (http://127.0.0.1:8053/admin) had become completely unreachable. All I got back was Connection reset by peer, and neither the browser nor curl could see anything. DNS resolution (port 53) was still working fine, so there was no real damage. As far as docker ps went the container was shown as healthy, so I had not been worried, but when I looked into it I found that the problem itself went back six days, to 2026-08-01. [Read More]

TL;DR I tried building a mail server with Docker on a Sakura VPS I will skip registering a domain on Freenom and how to use Cloudflare Linux(Debian10) Docker is assumed to be already installed A domain name has been obtained from Freenom and registered in a DNS such as Cloudflare Freenom : example.com (fictitious name) Sakura VPS: 11.22.33.44 (fictitious IP) For this server build I referred to the sites below [Read More]

On my home server I use my own domain and run several servers on it, but from inside the home LAN the traffic goes through the router, so accessing them with my own domain does not reach the servers inside the house It is easier to understand if you refer to this article When you only have a few PCs and devices, you can write the entries in each hosts file instead of introducing dnsmasq, but I also wanted to manage the hosts file in one place, so I built dnsmasq as a DNS server inside the LAN with Docker [Read More]