Re: Suse 10 DNS, firewall, or masquerading problem?

On Thu, 08 Dec 2005 17:59:02 -0600, Clifford Kite wrote:

> Ger <gp_lally@xxxxx> wrote:
>> Some information that might be helpful: Ethereal capturing packets on
>> Squid's internal interface while running Outlook Send/receive on Linux
>> client: Windows PC sends DNS query mail.iol.ie Squid replies ICMP
>> Destination unreachable (port unreachable)
>
> For what it's worth, that ICMP message essentially means nothing is
> listening on the port. No DNS server running on the port means no IP
> address for mail.iol.ie is returned to the "Windows PC."

Well thank you Clifford! I think I have DNS working now. When I start a
send\receive on the Windows machine and capture packets on SuSE's
external interface I can see that IP addresses for mail.iol.ie and
pop.iol.ie are being resolved, up to a certain point. I also see from
netstat that the SuSE machine is listening to port 53 on TCP only, on both
external and internal interfaces, but not on UDP. Is this a good thing?

I'm still at a loss to understand what's going on. I honestly amn't a
networking guru by any means but I've learned so much over the past week
trying to figure this out! That's why I put the Linux system together --
to learn!! I really would appreciate someone helping me resolve my email
and news issues though!!

.

Relevant Pages

  • Re: Cant access web on local network server
    ... Yes my Windows 2003 R2 Standard Server is a DC domain controller. ... How do I open DNS for the outside? ... What port should I give access to? ...
    (microsoft.public.windows.server.general)
  • Re: Dual NICS
    ... In the DNS management console, on the properties of the DNS server, ... Add this registry entry with regedt32 to stop the ... give it the IP of the internal interface. ... Windows 2003 won't bark. ...
    (microsoft.public.windows.server.active_directory)
  • Re: Strange - all my programs want internet access.
    ... >results in Windows Explorer attemping to open a port for DNS. ... >destination IP is my ISP's DNS proxy server, ... >played around with the Services, Windows Components, Registry and Network ...
    (microsoft.public.windowsxp.network_web)
  • Re: Zone Transfer with Secondary DNS error
    ... Roland Hall made a post then I commented below ... > will be a high numbered random port. ... With Microsoft's DNS Server for Windows and ISC's ... That's pretty much the way Windows ...
    (microsoft.public.win2000.dns)
  • Re: Group Policy and event 1054
    ... > NSlookup is OK, flushed and registered DNS. ... > DNS server looks OK, ... give it the IP of the internal interface. ... Windows 2003 won't bark. ...
    (microsoft.public.win2000.dns)
Loading