1. If I use DynDNS a free Dynamic DNS Service and have a domain name: openserver.ath.cx can I use this domain name on my server and does this mean replaceing 'server1.example.com' from the tutorial to say... 'www.openserver.ath.cx'?
Actually the server1.example.com is merely the local server name that you want to setup and this is ok call it wnat you want except without a www in the from of the domain
rather then this www.openserver.ath.cx
use this openserver.ath.cx...
2.I host the server from home on broadband, If I enable wildcards on my domain eg. *.openserver.ath.cx, Does this mean I can setup subdomains on the server and it will be managed by my Internal DNS Server. (BIND 9 installed with ISPConfig).
If you are running the server from your home on broadband what is required is a static ip address and not a dynamic ip address, ispconfig does not work well with dynamic ip address....
Also once you have setup ispconfig within the admin logon you setup a client and then a web for that client and within the web setup ispconfig allows you to setup as many subdomains as you want.....