Re: [ntp:questions] Clock time synchronization of four computers

2012-07-11 Thread Nazmul Islam
Thanks a lot for all of your responses. I really appreciate your spending time in this matter. It seems like that my organization's traffic controller was blocking all NTP requests. I contacted them and was able to use the organization's NTP server. Now, I only see a millisecond level difference b

Re: [ntp:questions] Clock time synchronization of four computers

2012-07-09 Thread unruh
On 2012-07-09, Dave Hart wrote: > On Mon, Jul 9, 2012 at 21:00 UTC, unruh wrote: >> If he is having trouble keeping many second sync with pool servers, he >> is going to have trouble with keeping sync with a master. And if that >> master goes out for some reason, he will be totally up the creek. >

Re: [ntp:questions] Clock time synchronization of four computers

2012-07-09 Thread Dave Hart
On Mon, Jul 9, 2012 at 21:00 UTC, unruh wrote: > If he is having trouble keeping many second sync with pool servers, he > is going to have trouble with keeping sync with a master. And if that > master goes out for some reason, he will be totally up the creek. There's a big difference between synch

Re: [ntp:questions] Clock time synchronization of four computers

2012-07-09 Thread unruh
On 2012-07-09, Kennedy, Paul wrote: > Nazim, > If all you need is relative timing, pick a computer as master (a modern > one one you rarely reboot is a good choice), edit the ntp.conf file to > use a series (say 3) of external pool servers. then goto the other 3 > machines, edit the ntp.conf file

Re: [ntp:questions] Clock time synchronization of four computers

2012-07-09 Thread David J Taylor
"Nazmul Islam" wrote in message news:caftrfezn5mhq_bodeg5kz7l2kga5s6ngsmfbhyksmxxm9gf...@mail.gmail.com... Hello, I have not used ntp processing before. I apologize in advance if my questions seem too novice. I am trying to synchronize the clocks of four computers. The timing does not have

Re: [ntp:questions] Clock time synchronization of four computers

2012-07-08 Thread Kennedy, Paul
2:25 PM To: questions@lists.ntp.org Subject: Re: [ntp:questions] Clock time synchronization of four computers On 2012-07-08, Nazmul Islam wrote: >> >> Hello, >> >> I have not used ntp processing before. I apologize in advance if my >> questions seem too novice. >&g

Re: [ntp:questions] Clock time synchronization of four computers

2012-07-08 Thread unruh
On 2012-07-09, Nazmul Islam wrote: > Hi Chris, > > Thanks a lot for your reply. I was using Ubuntu 12.04. The computers were > connected to the server overnight but it did not seem to work. We have no idea what "did not seem to work" means. Do ntpq -p and look at teh "offset" column. It is in ms

Re: [ntp:questions] Clock time synchronization of four computers

2012-07-08 Thread unruh
On 2012-07-09, Chris Albertson wrote: > On Sun, Jul 8, 2012 at 12:24 PM, Nazmul Islam wrote: > >> >> server nist1-ny.ustiming.org >> server nist1-nj.ustiming.org >> server ntp.ubuntu.com >> >> >> > However, each computer is still off. It's hard to find the exact time >> > difference from eye-balli

Re: [ntp:questions] Clock time synchronization of four computers

2012-07-08 Thread unruh
On 2012-07-08, Nazmul Islam wrote: >> >> Hello, >> >> I have not used ntp processing before. I apologize in advance if my >> questions seem too novice. >> >> I am trying to synchronize the clocks of four computers. The timing does >> not have to be accurate but they have to be sync'd with each oth

Re: [ntp:questions] Clock time synchronization of four computers

2012-07-08 Thread Nazmul Islam
Hi Chris, Thanks a lot for your reply. I was using Ubuntu 12.04. The computers were connected to the server overnight but it did not seem to work. I will try with the mentioned servers and see how it goes. Thanks, Nazmul On Sun, Jul 8, 2012 at 8:39 PM, Chris Albertson wrote: > > > On Sun, Jul

Re: [ntp:questions] Clock time synchronization of four computers

2012-07-08 Thread Chris Albertson
On Sun, Jul 8, 2012 at 12:24 PM, Nazmul Islam wrote: > > server nist1-ny.ustiming.org > server nist1-nj.ustiming.org > server ntp.ubuntu.com > > > > However, each computer is still off. It's hard to find the exact time > > difference from eye-balling but I can see a clock time difference of > > ro

[ntp:questions] Clock time synchronization of four computers

2012-07-08 Thread Nazmul Islam
> > Hello, > > I have not used ntp processing before. I apologize in advance if my > questions seem too novice. > > I am trying to synchronize the clocks of four computers. The timing does > not have to be accurate but they have to be sync'd with each other. An > error tolerance of 10-20 ms is acc