<div dir="ltr"><div>hello.</div><div><br></div><div>really? my first post have a tcpdump capture packet, dig trace...<br></div><br><div><br></div><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Jan 15, 2022 at 2:14 PM G.W. Haywood via bind-users <<a href="mailto:bind-users@lists.isc.org">bind-users@lists.isc.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi there,<br>
<br>
On Sat, 15 Jan 2022, Diego Garcia wrote:<br>
<br>
> Still with problems. That setup was running fine for few years.<br>
<br>
But you changed something.<br>
<br>
> Bind Server is on DMZ and doing NAT for the local net. Test Server is<br>
> behing NAT<br>
><br>
> Must have another problem<br>
><br>
> I try this days a lot of things and nothing works,<br>
<br>
Generally speaking, if you set things up right, BIND Just Works. It<br>
must be a couple of decades since I last had to fiddle with anything<br>
to fix a broken BIND server.<br>
<br>
It is not helpful to us if you tell us that you have tried a lot of things.<br>
It would be much more helpful if you told us exactly what you have tried<br>
and exactly what were the results. You need to be methodical and precise.<br>
<br>
> think in try reinstall but i preferred to know what happened and solve it<br>
<br>
'Reinstall' to me means the sort of thing that you do if you're<br>
working on a Windows box. If you're using a real computer it's<br>
usually much better to find out what's going wrong and fix it.<br>
<br>
> ...<br>
> network unreachable resolving '<a href="http://play.google.com/A/IN" rel="noreferrer" target="_blank">play.google.com/A/IN</a>': 216.239.36.10#53<br>
> ...<br>
<br>
If you are getting 'network unreachable' messages then likely there's<br>
something wrong with your network setup. Before doing anything else,<br>
you need to fix that. It may or may not be a problem of your making,<br>
but given that you said you are using BIND on a server in a DMZ then I<br>
suspect that it is. Using a DMZ will make things more complicated and<br>
the faults will be more difficult to diagnose - especially for people<br>
on mailing lists to whom you give little and very poor information.<br>
<br>
It *looks* like BIND is trying to make queries but failing to connect<br>
to anything to make them.<br>
<br>
You do not appear to have acted on the good advice which was given to<br>
you after your previous post. Are you able to use tools like 'ping'<br>
and 'traceroute' to diagnose network problems, also like Wireshark or<br>
tcpdump to inspect network traffic? These would be my first steps in<br>
approaching this kind of problem. You will need to know that packets<br>
from the BIND server can go where they're supposed to go and replies<br>
reach the server in good time. You might also need to be able to see<br>
exactly what BIND sends, where it sends it, exactly what it receives<br>
(if anything) in reply to what it sends, and perhaps where the replies<br>
come from. If there are no replies, or the replies go to the wrong<br>
place, you need to be able to show that and find out why.<br>
<br>
What exactly are you trying to achieve which cannot be achieved by<br>
simply using a public DNS service, or one provided by your ISP?<br>
<br>
-- <br>
<br>
73,<br>
Ged.<br>
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</blockquote></div></div>