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I recently got a new DSL Gateway (modem) from Qwest, the Actiontec GTW701-wg with 54 Mbps WiFi, USB and Ethernet. It is a pretty nice little box so far and gives me over twice the DSL speed I had with the old Cisco 675! So I like it. BUT... it turns out this Actiontec box does everything except allow me to see my own webserver on my internal network. Anyone outside my network can see my webserver, but not me. I just get the modem's configuration screen! Not so convenient. I called Qwest and got the "we don't officially support that" answer (even though I have static IPs) but they put me through to "Nick" in India who checked into my question and finally replied "I'm sorry, the Actiontec cannot do that." Right. Thanks, Nick. Undaunted, I forged on, googling like a mad man... until I figured out HOW TO FIX THE ACTIONTEC DSL MODEM TO WORK WITH A PERSONAL WEBSERVER...

Finding tons of people with the same problem on tons of forums (well, it seemed like it), I found little good information. Most people resolved themselves to having it not work or buying different routers, switches, modems, etc, to solve the problem.

It initially appeared that editing the "hosts" file on Mac OS X would be a fix and a few people recommended using NetInfo in the Utilities folder to create a new Machine entry pointing my domain to my private IP address. That did not work. I tried editing the /etc/hosts file by hand. That didn't work either. I kept looking and looking and reading and reading and the hours went by...

Finally, I came across a page in Google's cache that I had previously discounted and re-read it again. It seems that Mr. Dennis Cox had a similar issue and came up with a fix. Nothing else had worked at this point so I plunged it with his intructions. Voila! It worked like a charm! And it was pretty simple to implement as well. Thanks, Dennis Cox!

Here's how to do it:
1) Edit your /etc/hosts file to include your private IP address and your domain name. For example "10.0.0.1 yourdomain.com"
2) Create a file called "lookupd.txt" in your /tmp directory with the following content:
/___start_below___/

{
"LookupOrder" = ( "FFAgent", "CacheAgent", "NIAgent", "YPAgent" , ');
"name" = ( "lookupd" , ');
"MaxThreads" = ( "12" , ');
CHILDREN = (
{"name" = ( "groups" , ');
"LookupOrder" = ( "FFAgent", "CacheAgent", "NIAgent" , ');
},
{"name" = ( "users" , ');
"LookupOrder" = ( "FFAgent", "CacheAgent", "NIAgent", ');
},
{"name" = ( "hosts" , ');
"LookupOrder" = ("FFAgent", "CacheAgent", "NIAgent", "DNSAgent", "NILAgent" , ');
},
{"name" = ( "netgroups" , ');
"LookupOrder" = ( "FFAgent", "CacheAgent", "NIAgent", ');
}
)
}

/___end_above___/

3) run this command from the terminal: "niutil -create . /locations/lookupd"
4) run this command: "niload -r /locations/lookupd . < lookupd.txt"
5) type "lookupd -d" to get a prompt and then type "hostWithName: yourdomain.com" and see that the results match your domain and IP.
6) Reboot your Mac and enjoy!

Hopefully this helps all you Mac OS X with Actiontec DSL users out there. It sure would have saved me a ton of time to have this info right from the start. Huge huge thanks to Dennis Cox.
And I'm sorry, but no, I won't provide any assistance to you with your machine. I simply don't have the time. The solution above will work for you.

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