On Monday, March 2, 2015 at 1:35:40 AM UTC+8, William Unruh wrote: > On 2015-03-01, catherine.wei1...@gmail.com <catherine.wei1...@gmail.com> > wrote: > > On Saturday, February 28, 2015 at 4:25:02 PM UTC+8, Jan Ceuleers wrote: > >> On 28/02/15 08:48, catherine.wei1...@gmail.com wrote: > >> > I still have a doubt: the key file is generated on my PC (as the first > >> > ntp server) , when I copied it to the box(client), and I changed the > >> > box's ntp server to a second server "3.cn.pool.ntp.org" or some other > >> > ntp servers. The authentication still passes. Why is that? > >> > >> ntpq talks directly to the ntpd process over the network. If you run > >> ntpq without specifying where the server is located it talks to ntpd on > >> localhost. Which time sources ntpd uses is immaterial. > > > > > > Hi, Jan > > I specified the ntp server "3.cn.pool.ntp.org" in the /etc/ntp.conf file. > > In this case, I run ntpq :config ... , does it still talk to ntpd on > > localhost ? and time sources is still "3.cn.pool.ntp.org" ? > > 3.cn.pool.npt.org is not an ntp time source. It is a dummy name, which > is filled in by pool.ntp.org. For example every time you ping that a > different address comes up > > ping -c 1 3.cn.pool.ntp.org > PING 3.cn.pool.ntp.org (202.112.10.36) 56(84) bytes of data. > ping -c 1 3.cn.pool.ntp.org > PING 3.cn.pool.ntp.org (202.112.31.197) 56(84) bytes of data. > ping -c 1 3.cn.pool.ntp.org > PING 3.cn.pool.ntp.org (202.118.1.81) 56(84) bytes of data. > > Thus there is no time source "3.cn.pool.ntp.org" ( or to be exact, there > are many)
Hi,William I now understand your points, you're right. The ntpq authentication has nothing to do with remote ntp server, it talks to ntpd directly. Thank you so much. _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
