$ docker run --rm chenhw2/dnspod-http-dns -h
NAME:
dnspod-http-dns - A DNS-protocol proxy for DNSPOD's DNS-over-HTTP service.
USAGE:
dnspod-http-dns [global options] command [command options] [arguments...]
VERSION:
MISSING build version [git hash]
COMMANDS:
help, h Shows a list of commands or help for one command
GLOBAL OPTIONS:
--listen value, -l value Serve address (default: ":5300")
--edns value, -e value Extension mechanisms for DNS (EDNS) is parameters of the Domain Name System (DNS) protocol
--udp, -U Listen on UDP
--tcp, -T Listen on TCP
--help, -h show help
--version, -v print the version