[geeks] ADMINISTRIVIA: Changes to mail delivery policies
Greg A. Woods
woods at weird.com
Wed Mar 13 14:12:36 CST 2002
[ On Wednesday, March 13, 2002 at 21:04:40 (+1100), Scott Howard wrote: ]
> Subject: Re: [geeks] ADMINISTRIVIA: Changes to mail delivery policies
>
> Poor network design and/or configuration is your problem, not Bill's.
Indeed that's one of the problems I help people solve, but I am not an
army or even a whole legion and I cannot solve such problems for all
Bill's subscribers around all the far reaches of the world.
> Lets do the sums. The actual number of SYN packets is going to be closer to
> 6-8
WRONG. Three per connection attempt. Period. Yes each MX will cause
an additional connection attempt, but that's a second concern. There
may, or may not, be a returned ICMP error reply for each SYN packet.
In the end we're still talking a total amount of traffic that won't even
show up as a tiny pixel on Bill's throughput graphs, not unless his own
ISP gets disconnected from most of the Internet.
Try checking your facts for a change. A wee bit of patience and tcpdump
will show you what happens.
--
Greg A. Woods
+1 416 218-0098; <gwoods at acm.org>; <g.a.woods at ieee.org>; <woods at robohack.ca>
Planix, Inc. <woods at planix.com>; VE3TCP; Secrets of the Weird <woods at weird.com>
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