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Re: [OCLUG-Tech] Postifx/SMTP problem - Sender address rejected

  • Subject: Re: [OCLUG-Tech] Postifx/SMTP problem - Sender address rejected
  • From: Michael Walma <michael [ at ] walma [ dot ] org>
  • Date: Sat, 4 Feb 2006 15:34:23 -0500
On February 4, 2006 02:50 pm, Dan Langille wrote:
> On 4 Feb 2006 at 14:46, Stephen Gregory wrote:
> > On Sat, Feb 04, 2006 at 02:36:10PM -0500, Michael Walma wrote:
> > > I am perplexed as to why some people are not finding my server and some
> > > are not.
> >
> > $ whois walma.org
> >
> > <snip>
> >
> > Name Server:NS1.TWISTED4LIFE.COM
> > Name Server:NS1.WALMA.ORG
> >             ^^^^^^^^^^^^^
> >
> > That is going to cause some problems.
>
> I think it would help if you explained why you say this.

Yes please.  If you are suggesting that it bad practice to do your own DNS, 
I'd point out that it is pretty common.  

# whois google.com

<snip>

   Name Server: NS2.GOOGLE.COM
   Name Server: NS1.GOOGLE.COM
   Name Server: NS3.GOOGLE.COM
   Name Server: NS4.GOOGLE.COM

Also, it is not really self-referential, the initial request goes to the root 
servers who return the IP addresses, not just the names, of your name 
servers.  Or so I understand, not being a DNS guru.

Michael