[Dnsmasq-discuss] SMTP server DNS resolution

[Charles Marcus]

Hi Jon,

Thanks for the reply... I'd like to keep this on list if you don't mind...

Jon wrote:
> Not sure if I fully understand your question, but the killer feature of 
> DNSMasq for me is that it will return addresses from the /etc/hosts file 
> as responses to DNS queries from machines on the network. Therefore, if 
> I put the name of my SMTP server and an address for it in my /etc/hosts 
> file, then it would return that address for queries against the SMTP 
> server's host name.
> 
> Does that sound like what you're looking for?

No, I guess I wasn't clear. Let me try rephrasing...

I'm talking about my internal, public smtp server using DNSMasq for its 
caching capability...

Specifically:

1. I'd like to use DNSMasq as my DHCP/DNS server for my new Samba server.

2. I'd like normal DNS client requests (LAN/web browsing) to be handled 
by DNSMasq, taking advantage of the DHCP/Dynamic DNS and external DNS 
caching, forwarding any non-local requests that aren't cached to the 
OpenDNS servers.

3. I'd like a SEPARATE DNSMasq instance, that is used ONLY by my 
internal SMTP server, as an SMTP DNS cache, forwarding any cache misses 
to the internet root servers for authoritative resolution.

I have been simply forwarding all such requests to my ISPs DNS servers, 
but they haven't been extremely reliable, so I'd like to bypass them. Is 
forwarding such requests directly to the root servers considered bad 
netiquette?

-- 

Best regards,

Charles