updns is a simple DNS proxy server developed using Rust. You can intercept any domain name and return the ip you need

updns # or updns -c /your/hosts

You may use sudo to run this command because you will use the 53 port

Build docker image

docker build -t updns .

Start up

docker run -d --name updns -p 53:53/udp -v /root/updns/:/root/.updns/ --restart always updns

You can use updns config command and then call vim edit, or find ~/.updns/config edit

You can specify standard domains, or utilize regular expressions for dynamic matching

Regular expression starts with ~

bind 0.0.0.0:53 # Binding address proxy 8.8.8.8:53 # Proxy address timeout 2s # Proxy timeout (format: 1ms, 1s, 1m, 1h, 1d) # Domain matching example.com 1.1.1.1 *.example.com 2.2.2.2 ~^\w+\.example\.[a-z]+$ 3.3.3.3 # IPv6 test.com :: # Import from other file import /other/hosts

Building a DNS server in Rust

MIT license