On Wednesday 27 July 2005 00:39, Amos Shapira wrote: > > Why not? As long as its owner doesn't care?
There is no "law" that requires it, and the NTP server operator can do whatever he/she deems right. However, the way it was designed to work is below... From the original NTP RFC1059: The purpose of NTP is to connect a number of primary reference sources, synchronized to national standards by wire or radio, to widely accessible resources such as backbone gateways. These gateways, acting as primary time servers, use NTP between them to cross-check the clocks and mitigate errors due to equipment or propagation failures. Some number of local-net hosts or gateways, acting as secondary time servers, run NTP with one or more of the primary servers. In order to reduce the protocol overhead the secondary servers distribute time via NTP to the remaining local-net hosts. > Since you seem to be up to date with the situation, do you think you know > who to talk to in order to organize an il.pool.ntp.org sub-domain > (see http://www.pool.ntp.org/)? I think it's more of a matter of having a > concent from the server's owner than anything else. I read the project description, but I guess it requires FULLY public ntp servers to join. In this case, you'd have to suggest this to the operators of these servers, in the case of .ac.il clocks, you can e-mail Hank Nussbacher <[EMAIL PROTECTED]> and he can propagate the request for you to the appropriate people inside IIUCC. In the case of the IIX clocks, you'll have to send an e-mail to Doron Shikmoni <[EMAIL PROTECTED]>. The ISPs don't open their NTP servers to non-clients, so they are not usefull. > In what way? Screwing with the signal or just logging in and running > date(1)? Isn't it recommanded to setup a local NTP server for large > networks? And what's the difference of this recommandation from the "best > practice... ISP's setup their own clock" that you mentioned above? It is recommended to install a local NTP server for large networks, I just said one needs to be careful when installing it, to keep it secure. ISPs are large networks in this context, and as such there is no contradiction with the above. All I said is that people that sync with a server provided by their service provider expect the time to not be tampered with, as this is a service that their provider supplies (in contrast with public servers which provide a "as is" service with no guarantees or obligations). > > Thanks for the update. > --Ariel -- Ariel Biener e-mail: [EMAIL PROTECTED] PGP: http://www.tau.ac.il/~ariel/pgp.html ================================================================To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
