ftp://elsie.nci.nih.gov/pub/ doesn't work

Paul Eggert eggert at CS.UCLA.EDU
Thu Aug 12 08:44:19 UTC 2004

> From: "Jessica Yan (jeyan)" <jeyan at cisco.com>
> Date: Wed, 17 Sep 2003 16:36:48 -0700
> I am not able to download the files from ftp://elsie.nci.nih.gov/pub/....
> It says I do not have permissions to view files.

> From: <1 at pervalidus.net>
> Date: Mon, 9 Feb 2004 20:37:08 -0200 (BRST)
> I don't know why, but I'm assuming it's because it now rejects
> connecting from hosts that don't resolve.

Mark Brader and I just debugged a DNS-related problem he was having in
accessing the elsie FTP server.  It turns out that he was connecting
from a host whose PTR record pointed to a CNAME.  This isn't allowed
(see Internet RFC 1912 section 2.1).  Once his ISP corrected its DNS
entry, things started working for him.

Apparently elsie's FTP server is a stickler for proper DNS entries
from clients that are attempting to connect.  This may be why you
can't connect to elsie.nci.nih.gov.

> Please let me know about any mirrors.

Here are two:



Planetmirror tends to be more up-to-date (it has tzcode2004c now);
munnari has much more historical versions.

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