Inspired by other Oracle-bought products, perhaps they can make it so you can only update your DNS if you use their proprietary Java client, which uses an out-of-support version of Java even though Oracle own Java, and which tries to install adware every time you install/update it.
(An out-of-date Java being a requirement of a recentish version of Oracle Financials, and Java on Windows defaults to installing browser toolbars every time. Because Oracle need those extra few cents from tricking users.)
I setup a simple service to do the same thing, but unfortunately I had to close new registrations due to abuse. The code is open and available at github though:
I created my own service a while ago, use https://github.com/longsleep/mydyns as pointers if you want to roll your own. I am certain there are plenty of similar solutions to run your own dynamic DNS.
(An out-of-date Java being a requirement of a recentish version of Oracle Financials, and Java on Windows defaults to installing browser toolbars every time. Because Oracle need those extra few cents from tricking users.)