I am having kind of a weird problem. I have run a small webserver from my home computer and I can access it fine from computers on my local network, but cannot access it from other networks. I see in wireshark that the traffic is arriving at the computer and I have checked the firewall logs on my computer and nothing is being blocked(I use iptables as a firewall), and I can't see any reason why it shouldn't be working. Any thoughts on what could be going on here? Thanks

Let me know if you guys need more info on anything.

I was double checking the wireshark capture and realized that I was seeing something wrong. HTTP data is coming in from hosts on the same network, but not from my remote host. Also, another new twist in the plot: I changed the virtualhost and ports.conf to listen on port 999 instead of 80 and added a new firewall rule and I could access the website from remote hosts. I changed it back to 80 and it stopped working again. I checked the port forwarding configuration on my router and everything seems to be in order. Is it possible that my ISP is not allowing me to host anything on port 80? It would seem bizarre if that was the case. Another thought would be that my router has shitty firmware and some idiot coder's implementation of the rule "do not allow remote administration via http" was to block all port 80 traffic. Any thoughts? Thanks.

It wouldn't be that odd at all for your provider to block port 80 on consumer grade service. It is one reason they justify higher prices for business grade service.
Call them and ask, or try forwarding port 8080 (or other non privileged port) to your internal port 80.