[clug] Fixed IP ISP

Steve Walsh steve at nerdvana.org.au
Thu May 13 07:08:31 GMT 2004

Erm, I may have to hold you up on part of that. One problem with using a
DHCP address for SMTP is if the destination server is using the SORBS (or
any DNSBL) to limit spam. As the address is part of the registered IP DHCP
space, the DNSBL part declines the connection.

Drove me mad trying to find out why I wasn't getting emails from a friend
through to my work email until I checked the log. Lo and behold, SORBS/DNSBL
was rejecting the mail, as they are on a ADSL service with a Dynamic DNS for
their domain.

As a simple solution, Dynamic DNS tools are great, but for hosting your own
server, they do have drawbacks.

-----Original Message-----
From: linux-bounces+steve=nerdvana.org.au at lists.samba.org
[mailto:linux-bounces+steve=nerdvana.org.au at lists.samba.org]On Behalf Of
Martin Pool
Sent: Thursday, 13 May 2004 4:50 PM
To: Edgecombe, Scott
Cc: linux at samba.org
Subject: Re: [clug] Fixed IP ISP

On 13 May 2004, "Edgecombe, Scott"
<Scott.Edgecombe at AirservicesAustralia.com> wrote:
> Hi Guys,
> I have a query from a work colleague. He wants to know if there is a
> good ISP in Canberra that will assign a static IP address.

I know this doesn't exactly answer your question but: has he
considered using a regular dynamic address and dynamic DNS?  ADSL and
Transact addresses are so stable that for all intents & purposes they
might as well be static.  For hosting regular web, ssh, smtp services
it will work just as well.


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