-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 The Monday 2006-10-02 at 16:43 +0200, Per Jessen wrote:
You should have more than one server to read the time from. A dozen or two would be apropiate. Enter several server lines like this:
I'm not sure why you'd have that many - maybe in your pool-example, but Daniel is pulling time from a very reliable stratum 1 server.
It may be reliable, but even so, it might not be, or his network path to it might not be. The daemon is designed to use a bunch of servers, compare them, then chose one, and switch to another if it needs. If you only supply one or two, you deny the measures built into the daemon. On the other hand, I use servers that explicitly make themselves public by being listed in the pool.ntp.org list. Some of them are on adsl, so it is in my interest to ask a fairly sized bunch in case some of them are out of alignment - network delays or just booted up are fairly common occurrences.
We, as users, should not request the time form them, but use level 2 or 3 instead (however, if they are in the pool, that's their fault).
I would generally agree with that, but some stratum 1 servers are for public consumption and allow you to subscribe if you ask.
Maybe so, but I can not justify needing such a precise time keeping. It is more polite to use other servers. However, some stratum 1 servers are in the pool, in which case I use them, although not explicitly. The article "http://en.wikipedia.org/wiki/NTP_vandalism" that Stan Glasoe mentioned is very interesting. - -- Cheers, Carlos E. R. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Made with pgp4pine 1.76 iD8DBQFFIbpwtTMYHG2NR9URAiebAJ9ijFX1HfT1q3L7aySRIW5numax/gCeJQtU rvFJF6zTlv7mNpw9/PfKd44= =XRnp -----END PGP SIGNATURE-----