In article <[EMAIL PROTECTED]>, David J Taylor <[EMAIL PROTECTED]> wrote: > Fabrice wrote: > >> Richard B. Gilbert wrote: > [] > >>> FWIW NTP uses UDP rather than TCP! > > > According to netdate man page, both protocols can be used.
> Then the manual is wrong in at least one respect, and perhaps how many > others? The man page is correct, but has nothing to do with NTP; it refers to the protocol on port 37, whereas NTP is on port 123. Being in pool.ntp.org doesn't constitute permission to use the port 37 protocol. (On some systems, the equivalent of netdate is called rdate.) Almost certainly what happened is that the random selection of servers selected one that particularly disliked unauthorised accesses on port 37 and deliberately served an incorrect time to such clients to try and dissuade them. Subsequently it selected a server that wasn't so aggressive in defending itself against port 37 attacks. _______________________________________________ questions mailing list [email protected] https://lists.ntp.isc.org/mailman/listinfo/questions
