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Old 09-29-2003, 06:47 AM   #1
esteeven
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Netgear router blocking website when using internal network


I have a webserver. My site is accessible from outside the network on which Apache lives but internally, a request for the web page brings up the username and password box for my Netgear router. I'm sure that the answer is staring me in the face (as usual!!) but I can't see it. There's no problem accessing the site using the local address of the server.
Thanks in advance!!
 
Old 09-29-2003, 08:05 AM   #2
slightcrazed
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If I'm hearing your right, you have a webserver NAT'd on a local subnet behind a router, and you use the router to forward poirt 80 to the server (very common setup). If you type www.insertwebsitenamehere.com externally it connects fine, but if you do so internally it connects you to the routers admin console.
Sounds like this might be a DNS problem. Do you have a DNS server on your internal network that is somehow resolving www.insertwebsitenamehere.com to your routers INTERNAL address?

slight
 
Old 09-29-2003, 08:18 AM   #3
esteeven
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That makes sense - but I have no memory of setting up a DNS server anywhere on the network. I'll have a look around though. I'll let you know. Cheers slightcrazed.
 
Old 09-29-2003, 09:32 AM   #4
esteeven
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Hmmmm! If the Netgear Router is pointing port 80 to my Apache server, does that mean that the DNS server is on the Apache box. Nothing else is pointing anywhere on the router (apart from ports 22 and 10000). How would I find the DNS Server? I was playing around with ddclient last week - could that be it?
 
Old 09-29-2003, 09:50 AM   #5
slightcrazed
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Very well could be. DDclient does dynamic DNS updating.

I apologize though, it is monday, and it is early, and the coffee hasn't kicked in yet. The client that you are using to browse to the site on the internal network, where is it pointing for DNS?

slight
 
Old 09-29-2003, 10:02 AM   #6
esteeven
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Monday is almost over for me! ;-)
 
Old 09-29-2003, 10:10 AM   #7
slightcrazed
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Gee... don't rub it in or anything.

slight
 
Old 09-30-2003, 05:46 AM   #8
esteeven
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It's Tuesday now....and I'm three hours in to my working day!!
I still have my problem though. I removed ddclient from the Apache box. I still can't load the website from inside the network. The page loads using its local address.


The client that you are using to browse to the site on the internal network, where is it pointing for DNS?

I'm somewhat in dark here. Galeon/Mozilla/K-Meleon etc are all default setups - if that's what you mean. How could I find out what is pointing at what? Is it /etc/hosts ???? Or ...... err! ????
 
Old 09-30-2003, 07:48 AM   #9
slightcrazed
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/etc/resolv.conf is where it is usually located. cat the file and it will give you IP addresses of DNS servers, in the order that it will try.

Usually behind a router the IP address will be the routers address, but you can set it to point directly at your ISP's DNS and that may help.

slight
 
  


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