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DNS Setup for FTP Site

Posted on 2007-04-03
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Last Modified: 2008-02-01
Hello,
I need some help with DNS I believe. I'm not too good in this area. It could be dyslexia. Anyway, I have an FTP site within my domain. If I am outside of my domain then i can get to it just fine. But, when I am part of the network Windows Explorer tells me it cannot display the web page. This sounds like a DNS issue to me. I had to setup a DNS entry for my regular web page but it is unclear to me what I should do for my FTP site.

thanks,
John

PS: Using IIS & Windows 2003 Server
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Question by:jhieb
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Tomeryos earned 500 total points
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Hi,

Answer to whether it is a DNS issue :
get the ip address of the ftp server (start->cmd->ipconfig) and try to access your ftp without a name, but using his ip like this : ftp://x.y.z.t:21 (if the port is 21). If you can connect like this but you can't connect with the name (ftpserver.mydomain.net) then it is a DNS problem.

It isn't a DNS issue as outside the domain you can connect, this means that the server DNS is configured correctly (which means that you have a server in your domain, that once it receives a request for ftpserver.mydomain.net, it hands out the correct ip address) this means that the problem lays in the DNS client. You need to change the DNS server of your network/internet connection.
You can do that by : control panel->network connections->right click your internet connection and click properties->click on "internet protocol (TCP/IP)"->click properties.
Now, if you see "Obtain DNS server address automatically" this means that somewhere in your network you have a DHCP server which is responsible to giving the DNS information. If this is the case, you need to change the DNS server ip address that the DHCP server hands.
If this is not the case, and "use the following dns server addresses" then you need to change it to the correct one. the correct one is the one which an out-of-the-company user uses to resolve the name
if you don't know which ip address to put here, we will continue from this point once you reply.
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by:jhieb
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Thanks for the help. It seems to be a dns issue. From within the network I can get to the ftp site by using the ip address. I have two DNS servers on my network. The primary is the same machine with the ftp site. The secondary is on another server, which is also the DHCP server.

My workstations are set to obtain the IP address and DNS info automatically.

My ip addresses look to the .10 and then the .12 servers for the DNS info. I do not have anything that looks to my ISP's DNS records, however. Other than creating an A record on my ISP I dont' see any other option. The odd thing is that I used to use TZO (dymanic dns) and I could resolve it just fine using that service. Now that I have a static IP address I am not sure what to do.
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by:jhieb
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Hi Tom, are you still there?
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by:Tomeryos
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yes, thanks for the grade
any questions, jhieb?
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by:jhieb
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Not really. I just closed the question because it was open so long. It is a dns issue but I still don't know where the problem is. I'm working on setting up another domain and this other domain can see the ftp site just fine by using the ftp name. But, when I am within the same domain I can't get to it unless I use the ip address.
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