From: Jerome M Berkman (jerry@uclink.berkeley.edu)
Date: Wed Dec 12 2001 - 14:11:23 PST
As an example, if you are using AT&T cable modems, you can not
use Eudora or a similar POP or IMAP client to access mail on
UCLink. Instead use Bearmail, http://bearmail.berkeley.edu,
if you are using an AT&T cable modem connection.
- Jerry Berkman, UCLink Support
On Wed, 12 Dec 2001, Michael Sinatra wrote:
>
> As if all the other AT&T problems weren't enough...
>
> Sometime yesterday, AT&T pretty seriously screwed up their DNS for
> ATTBI.COM. Specifically, the reverse and forward hostname to address
> mappings don't match. For example:
>
> [tcsh-->]michael@header[41]: host 12.233.173.120
> 120.173.233.12.IN-ADDR.ARPA domain name pointer 12-233-173-120.client.attbi.com
>
> [tcsh-->]michael@header[42]: host 12-233-173-120.client.attbi.com
> Host not found.
>
> Although this is one example, the problem extends to many, many hosts that
> use the ATTBI (former @home) cable modem service. The problem is that
> many hosts that run TCP_WRAPPERS with the "PARANOID" mode compiled in,
> will reject connections from such hosts, as a forward/reverse DNS mismatch
> can be an indication of DNS spoofing. Many hosts on campus run this
> version of TCP_WRAPPERS (because it's a GOOD THING security-wise), and I
> am hearing of many campus hosts that are rejecting connections from ATTBI
> clients.
>
> A few campus admins have already attempted to notify AT&T; I will be doing
> so soon. I wanted to let everyone know that the problem exists.
>
> michael
>
>
>
>
>
> ------------------------------------------------------------------------
> The following was automatically added to this message by the list server:
>
> For information about Micronet, its meetings and events, and its
> mailing list, including information on subscribing and unsubscribing,
> see the Micronet Web site at <http://wss.berkeley.edu/micronet/>.
>
------------------------------------------------------------------------
The following was automatically added to this message by the list server:
For information about Micronet, its meetings and events, and its
mailing list, including information on subscribing and unsubscribing,
see the Micronet Web site at <http://wss.berkeley.edu/micronet/>.
This archive was generated by hypermail 2b29 : Wed Dec 12 2001 - 14:13:44 PST