When I SSH to adams.dreamhost.com, it does ask me for a password. Try ssh -v adams.dreamhost.com
The first lines will show the connection attempt with an IP address. And try by its IP address as well: 18.104.22.168
This sounds like it's a DNS issue at your end. Can you get to scottdayman.com? Or any other sites hosted at DreamHost?
Oh, while you're at it, why not use DreamHost's anonymous WHOIS service so your address and phone number aren't public. Your domain is already registered here, so it's easy to modify.