Re: Windows 2003 server, DNS forwarding to internet not working
- From: "Ace Fekay [MVP]" <PleaseSubstituteMyActualFirstName&LastNameHere@xxxxxxxxxxx>
- Date: Sun, 26 Feb 2006 13:48:38 -0500
In news:MPG.1e6ae8febfb4582f9899b7@xxxxxxxxxxxxxxxxxxxx,
network_out <none.none.none> stated, which I commented on below:
Hi - no I'm not able to ping a public ip addr from a workstation.
nslookup does work. I've only used nslookup a couple of times so I'm
not sure what it implies about my issues.
Thanks
Lack of pinging indicates blocked ICMP. Nonetheless, attempting to ping a
name should resolve it. When you ping from the workstation, ping using a
public name, such as www.macromedia.com. Tell us if it at least resolves the
name to an IP.
Example using nslookup in batch mode querying www.microsoft.com:
===================================
C:\>nslookup
Default Server: london.nwtraders.msft
Address: 192.168.5.200
(at the next prompt line signified by the ">" symbol, type in
www.microsoft.com and the results will follow below)
www.microsoft.comServer: london.nwtraders.msft
Address: 192.168.5.200
Non-authoritative answer:
Name: lb1.www.ms.akadns.net
Addresses: 207.46.19.30, 207.46.20.60, 207.46.20.30, 207.46.18.30
207.46.198.60, 207.46.19.60, 207.46.199.60, 207.46.198.30
Aliases: www.microsoft.com, toggle.www.ms.akadns.net
g.www.ms.akadns.net
exit===================================
If it cannot resolve www.microsoft.com, then it's indicating DNS traffic is
being blocked. Now if you are only using the server's IP for DNS in the
workstations, I would suggest to double check if DNS traffic (TCP and UDP
53) is allowed in/out from the server. But since you said the server works,
then do you allow HTTP and HTTPS traffic to the internal network? I assume
the gateway on the workstations is the Smoothwall.
Ace
.
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