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Re: Dns Port Problems



On Sun, Mar 21, 2004 at 08:35:20PM +0200, George Roman wrote:
> this is the result of nmap started from my local
> workstation(172.16.35.137), when the DNS...server had
> no firewall(/etc/init.d/iptables clear)
> ^^^^^^^^^^^
> 53/tcp     open        domain

> this is the result of nmap started from the station
> situated on the internet(x.y.z.t), when the DNS
> ..server had no firewall(/etc/init.d/iptables clear)
> 	     ^^^^^^^^^^
> 
> 53/tcp     filtered    domain


There's a firewall somewhere between x.y.z.t and 172.16.35.137.
Traceroute is your friend. If its between your isp and 
172.16.35.37 that would be the problem. Can you get the ISP's server to
nmap you (or equivilent)?

Brian



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