I am using Digital Ocean's Linux VPS, say, hosting my own domain
example.com on a fixed ip address:
At home, I have a broadband internet service, sharing to two PCs via a Wifi router. The IP address assigned by my broadband provider is usually random. Now, I'd like to add a third Linux box at home, forwarding port 80 of the Wifi router to it.
Is it possible to setup my own DDNS (without subscribe to service like DynDNS)? Such that other people from the internet can access my new Linux box by:
If yes, what software are required on my VPS and/or home Linux box?