• Subject: Re: FTP connect
  • From: "Patrick Townsend" <patownsend@xxxxxxxxxxxxxx>
  • Date: Sat, 6 Jan 2001 10:17:53 -0800
  • Organization: Patrick Townsend & Associates Inc

Leif,

I erred when I said the FTP server does a lookup on its own domain name.
Actually it does a look up on its own IP address to get the domain name.
Maybe it would help if I actually quoted IBM on this issue. Speaking of the
delay:

"Yes, this comes up occasionally.... and no, there's no way to turn it off.
However, there's an easy workaround:  just put the system's name and IP
address in the local host table, and set Host name search priority on
CHGTCPDMN to *LOCAL.  (Performance-wise, that's a good thing to do
anyways.)

The reverse lookup is for the SERVER address, not the client address!  It's
used to get the name to put into the initial 220 response.  As long as the
server address is in the host table (and it's set to search local first),
the delay shouldn't happen."

Hope this helps.
Patrick
---
IBM AS/400 communications, FTP automation, and eCommerce
software and consulting services.

http://www.patownsend.com

----- Original Message -----
From: "Leif Svalgaard" <leif@leif.org>
To: <MIDRANGE-L@midrange.com>
Sent: Thursday, January 04, 2001 7:47 PM
Subject: Re: FTP connect


>
> ----- Original Message -----
> From: Patrick Townsend <patownsend@patownsend.com>
> To: <MIDRANGE-L@midrange.com>
> Sent: Thursday, January 04, 2001 7:05 PM
> Subject: Re: FTP connect
>
>
> > Leif,
> >
> > The IBM AS/400 FTP server does a reverse lookup on its own domain name.
If
> > DNS is configured to be searched first it will take 30 seconds to fail
over
> > on the search and give you the user prompt. Just put the AS/400 name in
DNS
> > and it will resolve this
>
> where in DNS? what pull down, property tab, etc...?
>
> sorry that I'm so dense, but in one email you
> say "I actually asked IBM if the FTP was doing a lookup on the client IP
> address
> or name and the answer was a definitive "no".", now you say
> "The IBM AS/400 FTP server does a reverse lookup on its own domain name".
> What gives? no wonder I'm confused. I do appreciate your (and other's)
help,
> but I'm not making any progress on this...   :-(
>
> Leif
>
>
>
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