Alright, I realize this isn't a professional server question, but this seemed like the most appropriate place to ask.
I'm working on some web design projects and I've been dissatisfied with many of the free servers I have tried. I don't want to pay for a server service because most of the projects I'm working on are really just for learning purposes, as a result I decided to try and set up my own server with an old Macbook Air.
I went into my Sharing settings and turn on web sharing, then proceeded to turn on the firewall for extra security.
After this I went into my router(Arris) settings and enabled DMZ for that computer, which opened up port 80. I then set up port forwarding and port triggering
From here I went to No-IP.com and set up an account, where I signed up for a subdomain name and then added a host where I selected the DNS Host(A) option.
Lastly, I downloaded their client update manager and set it up to where it "should" work.
The issue though, is that when I type in the subdomain that I setup, it just says page cant be found. What am I missing, clearly there is a step i have overlooked. Is there anyone here who has dealt with no-ip.com, or at least know what I need to do to get this going?