nanog mailing list archives
Re: Open Letter to D-Link about their NTP vandalism
From: "Edward B. DREGER" <eddy+public+spam () noc everquick net>
Date: Wed, 12 Apr 2006 05:45:20 +0000 (GMT)
BD> Date: Tue, 11 Apr 2006 23:47:11 -0400 BD> From: Brian Dickson BD> As to the liability issue, it is easy enough to envision that BD> someone, somewhere, is relying on time results from NTP for a BD> life-or-death application, like a medical device, and is innocently BD> an impacted third party in this. If I had a life-or-death application depending on NTP, I'd do what I've already suggested: Use GPS and multiple stratum-1 servers, and clip adjustment delta magnitude. I might also listen for a heartbeat (no pun intended) saying "device agrees with NTP server", then raise an error if that condition failed. BD> Sending bad NTP values could in theory be responsible for killing BD> someone's scratch monkey... I can only hope that my life is never entrusted to a device that, at the suggestion of a lone NTP server, would adjust the clock by 42 years. IANAL, nor do I play one on TV, but such a setup would seem grossly negligent. Automated devices fail. Pretending otherwise is foolish. But you _did_ say "scratch monkey". :-) Eddy -- Everquick Internet - http://www.everquick.net/ A division of Brotsman & Dreger, Inc. - http://www.brotsman.com/ Bandwidth, consulting, e-commerce, hosting, and network building Phone: +1 785 865 5885 Lawrence and [inter]national Phone: +1 316 794 8922 Wichita ________________________________________________________________________ DO NOT send mail to the following addresses: davidc () brics com -*- jfconmaapaq () intc net -*- sam () everquick net Sending mail to spambait addresses is a great way to get blocked. Ditto for broken OOO autoresponders and foolish AV software backscatter.
Current thread:
- Re: well-known NTP?, (continued)
- Re: well-known NTP? Lars-Johan Liman (Apr 11)
- Re: well-known NTP? Edward B. DREGER (Apr 11)
- Re: well-known NTP? (Re: Open Letter to D-Link about their NTP vandalism) Stephane Bortzmeyer (Apr 12)
- Re: well-known NTP? (Re: Open Letter to D-Link about their NTP vandalism) Peter Dambier (Apr 12)
- Re: well-known NTP? (Re: Open Letter to D-Link about their NTP vandalism) Peter Dambier (Apr 12)
- Re: well-known NTP? (Re: Open Letter to D-Link about their NTP vandalism) Peter Dambier (Apr 12)
- Re: well-known NTP? (Re: Open Letter to D-Link about their NTP vandalism) Tony Finch (Apr 12)
- Re: Open Letter to D-Link about their NTP vandalism Martin Hannigan (Apr 11)
- Re: Open Letter to D-Link about their NTP vandalism Edward B. DREGER (Apr 11)
- Re: Open Letter to D-Link about their NTP vandalism Joe Maimon (Apr 12)
- Re: Open Letter to D-Link about their NTP vandalism Matt Ghali (Apr 13)
- Re: Open Letter to D-Link about their NTP vandalism Peter Corlett (Apr 13)
- Re: Open Letter to D-Link about their NTP vandalism Chris Kuethe (Apr 13)