problem reading gwene feeds in gnus agent

[Eric S Fraga <e.fraga@ucl.ac.uk>]

Hello,

I use the gwene.org server to read some rss feeds.  Recently, when I try
to read messages, I get the following error:

,----
| open-network-stream: feeds.wordpress.com/80 Name or service not known
`----

and the message is shown but with full headers.  Hitting t shows the
headers of the message as they are normally shown.  However, depending
on the actual message contents, I may see the message or I may not.  For
instance, for a recent blog posting from Lars, the error is:

,----
| open-network-stream: 2.bp.blogspot.com/80 Name or service not known |
`----

and the header and first few lines of the message (as displayed with
"C-u g") that cause this problem are

--8<---------------cut here---------------start------------->8---
Path: news.gmane.org!not-for-mail
From: Lars Ingebrigtsen <post@gwene.org>
Newsgroups: gwene.no.ingebrigtsen.lars
Subject: Emacs Can Haz =?utf-8?q?Brainz=3f?=
Date: Sat, 16 Apr 2011 01:50:36 +0200
Approved: news@gmane.org
Message-ID: <x1-zYLPZnIIsGpgZDxA3UmqoEgiGPM@gwene.org>
NNTP-Posting-Host: sea.gmane.org
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: 8bit
X-Trace: dough.gmane.org 1302911952 13226 80.91.229.5 (15 Apr 2011 23:59:12 GMT)
X-Complaints-To: usenet@dough.gmane.org
NNTP-Posting-Date: Fri, 15 Apr 2011 23:59:12 +0000 (UTC)
X-Content-Hash: hvA+rG5WNuxIVMqm77u8cxqa+bk
X-Feed: http://lars.ingebrigtsen.no/feeds/posts/default
Archived-at: <http://lars.ingebrigtsen.no/2011/04/emacs-can-haz-brainz.html>

<div class="separator" style="clear: both; text-align: center;"><a
href="http://2.bp.blogspot.com/-Y4L14fKtcHw/TajZqbXAXII/AAAAAAAAADk/_J7Cuh7tSOg/s1600/IMG_1081.JPG"
imageanchor="1" style="clear: right
--8<---------------cut here---------------end--------------->8---

Note the "href" entry...

By recently, I mean that I noticed this today, having updated gnus
yesterday evening from the repository.  I have updated again a few
minutes ago but the problem remains.  I am reading these types of
messages with gnus-unplugged with the gnus agent.

I wonder if this has anything to do with the recent discussion about
problems with DNS et al.?

Thanks,
eric

-- 
: Eric S Fraga (GnuPG: 0xC89193D8FFFCF67D) in Emacs 24.0.50.1 + No Gnus v0.18