killsnow/coredns repository overview

coredns
├── config
│   ├── Corefile
│   └── db.example
└── docker-compose.yml

version: "3.1"
services:
  web:
    image: killsnow/coredns:1.10.1
    restart: unless-stopped
    command: "--conf /root/Corefile"
    volumes:
     - ./config:/root
    ports:
     - 53:53/udp

.:53 {
    forward . 8.8.8.8 9.9.9.9
    log
    errors
}

example.com:53 {
    file /root/db.example
    log
    errors
}

$ORIGIN example.com.  ; designates the start of this zone file in the namespace
$TTL 1h               ; default expiration time of all resource records without their own TTL value
@                 IN  SOA     ns.example.com. rtiger.example.com. (
                                  2020010510     ; Serial
                                  1d             ; Refresh
                                  2h             ; Retry
                                  4w             ; Expire
                                  1h)            ; Minimum TTL
@                 IN  A       192.168.1.20       ; Local IPv4 address for example.com.
@                 IN  NS      ns.example.com.    ; Name server for example.com.
ns                IN  CNAME   @                  ; Alias for name server (points to example.com.)
webblog           IN  CNAME   @                  ; Alias for webblog.example.com
netprint          IN  CNAME   @                  ; Alias for netprint.example.com

docker run --name coredns -d -p 53:53/udp -v $PWD/config:/root killsnow/coredns

nameserver 192.168.1.254