ddnssrv is a simple dynamic DNS listener that accepts DNS updates in the same format as the DynDNS.org servers.
The server was developed to be used in combination with https://github.com/marpie/cfup.
{
"Users": [
{
"Username": "Default-User",
"Password": "MyPassword",
"Domains": [
"www.example.com"
]
}
]
}