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Re: Weird SMTP problem?

Paul Haesler wrote:

> Hi all,
> Just experienced a very weird problem.
> My Debian box has 2 NIC's: eth1 connects to the cable modem
> and the outside world, eth0 connects to the Windoze boxen on my
> LAN ( - Masqueraded access to outside world.)
> Yesterday I had a weird thing.  My Debian box could not connect
> to my ISP's SMTP server - no response whatsoever.  What's weird
> is I could connect to the same box on the same port from my
> masqueraded Windoze boxes!!
> Bringing the external ethernet interface down and back up again
> fixed the problem - but why was it happening in the first place?
> Has anybody else seen anything like this, or have any theories
> as to what was going on?
> Paul Haesler
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Was it the same IP address after you brought it down and up?  I believe they
have several different mail servers.  Possibly the one your server was sending
to was no longer there but you had cached the address?  Just guessing.


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