paul.a...@gmail.com wrote:
(snip)
>> >That's pretty much annoying because it's impossible to answer
>> >such a message as
twenex.paul7.net resolves to a host
>> >machine's IP and not that AA.BB.CC.DD address which is in the header.
(snip)
>> Are you sure that there really IS a reverse record for the address?
>> Check with another machine; tops20 has all the resolver stuff well hidden.
(snip)
> No, there isn't. The address is on a private network (
10.0.0.0/8)
> and the DNS servers are external, so I'm not sure if it's even
> possible.
> I thought there should be a way to override that locally, so I
> tried to do that with HOSTS file. Apparently that's not enough.
> I will set up my own DNS if I must but I'd really like to avoid that.
I have had a home DNS since I had two computers and a 9600 baud SLIP
line to the internet. Or maybe before that when I had UUCP running.
What you want is called split DNS, where one server serves the local
network, with FORWARDERS to the outside DNS. It will then reply to zones
it knows, and refer (and cache) zones it doesn't to the DNS servers
listed as forwarders.
You can also have (or your ISP) a DNS server with the outside addresses
for your network, if any. (For example, to allow mail from outside to
reach your TOPS20 host.) Outside hosts will use that one, with the
appropriate addresses to go through your NAT gateway.
It is nice to be able to reach your internal hosts by name instead
of numeric address.
-- glen