Re: Just keep telling yourself, "Worldcom won't fail, Worldcom won't fail"

2002-02-28 Thread John R. Levine
>What is the reasoning for thinking that WorldCom may fail? Is there >something that I've missed? They've laid a lot of people off, and according to the online Wall Street Journal (costs money but is worth it) they would have major negative cashflow if it weren't for all the money they're borro

RE: Satellite latency

2002-02-28 Thread Jeb R. Linton
Very true, though in Ku band, the figure-8s should lie entirely within a couple of decibels of peak for the beamwidth of your dish. Likewise, the DBS satellites in question (GE-4 I think, but don’t quote me) uses spot beam antennae, so realistically there's a great deal of what could be service

Re: Line Rate vs CPU utilization info requested

2002-02-28 Thread Stephen Sprunk
Thus spake "Donn Lasher" <[EMAIL PROTECTED]> > Does anyone have a table / web site / etc that talks about realized IP > throughput on various routers (3600 / 7100 / 7200, 5500, 6500, etc) > versus cpu load? IE even though you can put 4 x 100M ethernet cards > in a 3640, IMHO, you'd never see 400/

Re: Satellite latency

2002-02-28 Thread Clayton Fiske
On Wed, Feb 27, 2002 at 11:01:04PM -0500, Mark Allman wrote: > > The receiver is the one that informs the sender how large of a > > window it can accept, so it can be practical for a subscriber > > installation. It wouldn't be a good idea to park a bunch of > > servers behind one of these links,

Re: Satellite latency

2002-02-28 Thread Jim Mercer
On Thu, Feb 28, 2002 at 12:14:43PM -0500, Eric Oosting wrote: > Is there something else specific to one-way satellite connections that you > are attributing these problems with asymmetric routing to? There is > nothing inherently wrong with asymmetric routing that causes high latency > or perceiv

Reverse DNS and SMTP

2002-02-28 Thread Patrick Muldoon
We have recently implemented a policy on our mail servers of not accepting mail from hosts that do not correctly resolve via reverse DNS. While we on the technical side love the idea, there have been some questions from the business side of the house. If an ISP who doesn't have

RE: Reverse DNS and SMTP

2002-02-28 Thread Daniel Lark
You are most correct, it is definitely a double edged sword. Let's say you try to reverse DNS on an address who's nameserver is down or otherwise unreachable, what then? Some admins I know deliberately do run reverse DNS as they view it as system cracker tool, or they feel it is an unwarranted lo

ep.net status?

2002-02-28 Thread Chris Parker
Anyone know what's going on with ep.net? It's been unresolvable since at least yesterday. PAIX, SIX and several other exchanges point to ep.net to register for an IP assignment at the exchange. The two authoritive servers, flag.ep.net (198.32.4.13) dot.ep.net (198.32.2.10) are not working by

RE: Reverse DNS and SMTP

2002-02-28 Thread Pete Stephenson
>A better solution is to check the ip and see if it is an MX record for >the domain the mail purports to be from. [de-lurk] Perhaps, but do recall that there are systems out there which have certain servers listed in the MX records for receiving mail, and different servers for sending mail th

Re: Reverse DNS and SMTP

2002-02-28 Thread Conrad A. Rockenhaus
Patrick Muldoon <[EMAIL PROTECTED]> said: > > If an ISP who doesn't have reverse DNS setup correctly on their > mail servers, we point them to the RFC's and generally offer to help > them correct it. > We have noticed that our spam has reduced drastically, and the > complaints are

Re: Reverse DNS and SMTP

2002-02-28 Thread Jared Mauch
On Thu, Feb 28, 2002 at 01:35:09PM -0700, Daniel Lark wrote: > > You are most correct, it is definitely a double edged sword. Let's say > you try to reverse DNS on an address who's nameserver is down or > otherwise unreachable, what then? Some admins I know deliberately do run > reverse DNS as t

Re: ep.net status?

2002-02-28 Thread Jeffrey Meltzer
I know Bill was previously having some firewalling issues, possibly is again. I'd assume he'll respond to this email... On Thu, Feb 28, 2002 at 02:39:27PM -0600, Chris Parker typed: > > Anyone know what's going on with ep.net? It's been unresolvable since > at least yesterday. > > PAIX, SIX

Re: ep.net status?

2002-02-28 Thread John M . Brown
I can ping both NS's from LAAP attached box I can also ping via transit inbound to AS 226 On Thu, Feb 28, 2002 at 02:39:27PM -0600, Chris Parker wrote: > > Anyone know what's going on with ep.net? It's been unresolvable since > at least yesterday. > > PAIX, SIX and several other exchanges p

Re: Reverse DNS and SMTP

2002-02-28 Thread David Charlap
Jared Mauch wrote: > > What I do is format my smtp headers such that a very simple > regex can find mail with no reverse dns and dump it in a spam folder. > I find this catches a lot of the messages. If your server is using a heuristic that has the potential of offending your customers,

Re: ep.net status?

2002-02-28 Thread Paul Vixie
> ... > PAIX, SIX and several other exchanges point to ep.net to register for > an IP assignment at the exchange. > ... Actually, and for the record, PAIX gets its IP address blocks from EP.Net but we don't use them for address allocations/registrations within those blocks. That's handled inter

Re: Reverse DNS and SMTP

2002-02-28 Thread Nicole Harrington
Hi Does anyone know of a program that can flag such things and alter mail headers on the fly like this? Nicole On 28-Feb-02 Unnamed Administration sources reported Jared Mauch said : > > On Thu, Feb 28, 2002 at 01:35:09PM -0700, Daniel Lark wrote: >> >> You are most correct, it is defi

Re: Reverse DNS and SMTP

2002-02-28 Thread Paul Timmins
http://www.spambouncer.org I have no connection to this software other than being a satisfied user. -Paul At 07:29 PM 2/28/2002, Nicole Harrington wrote: > Hi > Does anyone know of a program that can flag such things and alter mail > headers >on the fly like this? > > > Nicole > > >On 28

Re: Reverse DNS and SMTP

2002-02-28 Thread Chris Adams
Once upon a time, Nicole Harrington <[EMAIL PROTECTED]> said: > Does anyone know of a program that can flag such things and alter mail headers > on the fly like this? If you use sendmail as your MTA, you can configure it to do it with the check_local rulesets from http://www.digitalanswers.org/

Re: DNS timeline

2002-02-28 Thread David Conrad
Simon, As with all good marketing and/or tabloid periodicals, spinning events such that they have one or two grains of truth makes the stories more believable. Not true, just more believable. To be clear: a fracture does not indicate fragmentation -- if so, the DNS has been fragmented ever sinc

RE: Reverse DNS and SMTP

2002-02-28 Thread Mathias Koerber
> > You are most correct, it is definitely a double edged sword. Let's say > you try to reverse DNS on an address who's nameserver is down or > otherwise unreachable, what then? Some admins I know deliberately do run Temporary DNS errors (timeouts reaching a server etc) are/should be distinguish