Re: [cobalt-users] problems with Qube3 (was Macintosh, AppleShare IP Users)

["Gary Melendez" <gmelendez@xxxxxxxxxxxxxxxx>]

----- Original Message -----
From: "Rodolfo J. Paiz" <rpaiz@xxxxxxxxxxxxxx>
To: <cobalt-users@xxxxxxxxxxxxxxx>
Sent: Thursday, April 05, 2001 11:48 AM

[SNIP]

> This may or may not apply to you, but the most frequently seen cause of
> this problem is improper reverse DNS resolution. If you do not know what

[SNIP some more]


Thanks for the reply, Rodolfo.

Like Arnis, I have tried using the straight IP address and it doesn't change
any symptoms. The problem isn't consistent - sometimes my outgoing mail gets
sent so fast I can't see it go through the Outbox. Other times it can take
up to two minutes. I have both Outlook Express 5.01/5.5 users and Netscape
Communicator 4.76 users - the latency seems to be worse and more consistent
for my Netscape users.

I am using the Qube 3 as a gateway with NAT - i.e., all my machines are on a
192.168.x.x network as is the secondary ethernet on the Qube 3. The Qube 3
connects to the Internet through our DSL router using a real IP address on
its primary ethernet. If I try an nslookup on my mail servers real IP
address, I get the following

DNS request timed out.
         timeout was 2 seconds
*** Cant' find server name for address 192.168.x.x: Timed Out
Server:  sextant.bluestar.net
Address:  209.119.96.2

*** sextant.bluestar.net can't find 64.183.17.34: Server failed

The actual address it gives for the internal IP is correct for my mail
server's internal IP. sextant.bluestar.net is our Primary DNS server at the
ISP. I am not running DNS at all myself.

Any further ideas you could give me would be greatly appreciated.

Thanks,
Gary