webhosting recommendations with procmail

Mon Jan 20 11:08:14 PST 2003

Chuck Yerkes writes:
>Quoting William R Ward (bill at wards.net):
>> Static IP's are not necessary for this.  You can use Dynamic DNS
>> (www.dyndns.org) to get the appearance of static IP for any broadband
>> account.  I use AT&T Broadband, and even though technically it's not a
>> static IP, the IP has never changed except when my MAC address has
>> changed.  But I run a program that updates Dynamic DNS regularly just
>> in case.  So while I don't have a static IP, I do have
>> "wards.dyndns.org."
[...]
>
>You have that address except when you are not on the net for a time. e.g.
>1) your machine crashes for a time and isn't available.
>2) when your provider, which never would make a mistake, makes a mistake.
>
>Someone else comes in, gets your IP while your down and, if
>they have an SMTP server, gets mail hitting them.  Odds may
>be low, but it can happen.

Yes, I agree.  That's one reason I let an ISP handle the SMTP traffic
for my domains.

Actually I should clarify: I get my connection through AT&T Broadband
(cable modem), but have my SMTP and WWW hosted with sasquatch.com.

>My twisted workaround is that mail hits a machine with a static
>IP (friends, etc) and relays to my machine via a tunnel.

That works too.

>If my dynamic DNS changes, that tunnel doesn't end right so the
>new holder of that IP won't get my mail - they will get some
>very odd packets expecting them to have a tunnel, but so what?
>Tunnels can be IPSec or simply IPv6/IPv4 or even IPv4/IPv4.

Or even ssh.

--Bill.

-- 
William R Ward            bill at wards.net          http://www.wards.net/~bill/
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