From: John Beckett 

Randall Parker

wrote in message news::
> I would not expect Thunderbird to resolve news.barkto.com every time I
> click on another message in the same forum. I'd expect it to resolve
> that URL just once.

True, but maybe if it had trouble with something, it retries on the next
occasion that it would like the info.

I don't think anyone has mentioned the possibility that something on your
Linux system is doing a reverse DNS lookup - i.e. given the IP that it is
talking to, look up the name for that IP. Some systems do that as an extra
(thin) layer of checking.

Since you are now a (potential) Linux guru, you should install Wireshark
(the new Ethereal) and sniff network traffic to see exactly what is
happening.

Hosts file is /etc/hosts
Make sure each line (that is, the last line) has an Enter at the end - newline).

John

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