[Dnsmasq-discuss] DNS does not work (UNCLASSIFIED)

[Hakenson, Gary C CIV USA ATEC]

Classification: UNCLASSIFIED
Caveats: FOUO

Indeed, the firewall was blocking the DNS requests.

I enabled the DNS service on the firewall for the dnsmasq machine and I
finally got back DNS responses.

Thanks for your help,
Gary

-----Original Message-----
From: Simon Kelley [mailto:simon at thekelleys.org.uk] 
Sent: Monday, April 26, 2010 3:26 PM
To: Hakenson, Gary C CIV USA ATEC
Cc: dnsmasq-discuss at lists.thekelleys.org.uk
Subject: Re: [Dnsmasq-discuss] DNS does not work (UNCLASSIFIED)

Hakenson, Gary C CIV USA ATEC wrote:
> Classification: UNCLASSIFIED
> Caveats: FOUO
> 
> I don't want queries to go to upstream DNS servers. I only want to use
> the local /etc/hosts file.
> 
> I ran tcpdump on the dnsmasq machine and I can see the DNS queries
> coming in but dnsmasq is not responding.
> 
> Syslog shows the dnsmasq is not responding either.
> 
Can you see the dnsmasq startup banners in the syslog?

Given the information we have so far, I think iptables rules blocking
the packets are the most likely explanation.

Cheers,

Simon.
Classification: UNCLASSIFIED
Caveats: FOUO