-----Original Message----- From: William Herrin [mailto:bill@herrin.us] Sent: Sunday, February 21, 2010 10:02 AM To: Rich Kulawiec Cc: nanog@nanog.org Subject: Re: Spamhaus...
Hint: nothing stops the spammers from pointing the MX records for
throwaway domains at somebody else's mail servers. Among other
On Sun, Feb 21, 2010 at 9:10 AM, Rich Kulawiec <rsk@gsp.org> wrote: their things.
MANY other things, unfortunately.
Rich,
Clearly I shouldn't respond to any packets at all. After all, a bad actor can originate packets with a forged source address and I wouldn't want to abuse your network with unwanted echo-replies, syn-acks and rejs.
Regards, Bill Herrin [Tomas L. Byrnes] Maybe he should avoid any traffic on any non Point to Point only link with no repeaters, as there's always the possibility of a beaconing station or someone with SQE turned on.
Reductio ad absurdam; which, btw, is never a valid argument for, or against. P.S. I once wrote code to change line idle code on Multi-drop X.25 from 7E to FF, because AT&T ignored DTR and had all their MJUs run wide open, thereby destroying a NRZI multidrop 56kbps digital circuit, so the above scenario is not fictitious. Needless to say, pulling the plug was not an option.