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DNS and NAT

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beefjerky911

Senior member
hi, im trying to run a dns server on my win98 machine using the program simple dns. i want to be able to run different servers behind my firewall/nat. the problem im getting is when the outside world tries to resolve a name, it comes back as 192.168.1.x, which is the correct lan ip. is it possible to have a nat dns setup? and if so, how would the dns tables look.
 
I would recommend not using it. DNS is too much of a hastle to setup in such a small environment. I had a DNS server running on my network at home with 5 machines on it, then I realized that it wasn't worth it. I can still ping or attach to a system without DNS because WINS replicates without a server in the same workgroup. I don't even need a WINS server. 🙂
 
When you wrote your DNS entries did you put the internal ips or the external ip? If you only have 1 IP Address, DNS is not worthwhile. If you do, just do redirects to different servers depending on the port.
 


<< internal ips >>



Well duh. If you put the internal ips into the configuration it is going to respond with internal ips. Use the external ips you have mapped to the servers.
 


<< theres only 1 external ip >>



Then why bother with DNS anyways? Just redirect each service to its server at your firewall.
 


<< ideally wanted to use 1 external ip that can point a web browser to http://webserver.domain.com, nat-ed ip 192.168.1.1, and be able to telnet to telnetbox.domain.com at 192.168.1.2, just wanted to know if that was a possible setup. im just a newbie at dns >>



You must have missed the point of DNS. DNS is so you can map several Domain Names to different IPs. If you only have 1 IP you have problems. Setup a firewall/NAT gateway. That machine should be able to redirect requests to port 22 (telnet is bad) to box #2 and port 80 requests to box #1.
 


<< understood now, thanks >>



and trust me, this is a MUCH easier solution than running a DNS Server... Especially DNS on win9x 😉
 
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