[opensuse] good ntp server
Just wondering what ntp servers people here prefer to use. I have done a google search an get a list of the public servers but wanted to see which ones people here on the list use. Thanks -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Hello Jack, On Mon, 05 Nov 2007, Jack Malone wrote:
Just wondering what ntp servers people here prefer to use. I have done a google search an get a list of the public servers but wanted to see which ones people here on the list use.
at work, we've our own Stratum 2 from a regional Stratum 1 and at other machines, I always use {0,1,2}.fedora.pool.ntp.org. I'm guessing SuSE respective Novell has a similar pool. Greetings, Robert -- Robert Scheck Web: http://www.etes.de E-Mail: scheck@etes.de ETES GmbH Libanonstrasse 58 A D-70184 Stuttgart Fon: +49 (7 11) 48 90 83 - 12 Fax: +49 (7 11) 48 90 83 - 50 Registergericht: Amtsgericht Stuttgart HRB 721182 Geschäftsführende Gesellschafter: Markus Espenhain und Jan Theofel Sitz der Gesellschaft: Stuttgart USt.-Id.Nr.: DE814767446 -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Nov 5, 2007 3:26 PM, Jack Malone
Just wondering what ntp servers people here prefer to use. I have done a google search an get a list of the public servers but wanted to see which ones people here on the list use.
Depends where you are, really. $CONTINENT.pool.ntp.org or $COUNTRY.pool.ntp.org is the preferred option for you to use by the ntp pool admins - see http://www.pool.ntp.org/use.html regards, Daniel Goldsmith -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Mon, 2007-11-05 at 09:26 -0600, Jack Malone wrote:
Just wondering what ntp servers people here prefer to use. I have done a google search an get a list of the public servers but wanted to see which ones people here on the list use.
Thanks
Depends where you live. The closer to an NTP server, the better. Personally, I prefer NTP servers that participate in a round robin. us.pool.ntp.org is a good one. -- ---Bryen--- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Depends where you live. The closer to an NTP server, the better. Personally, I prefer NTP servers that participate in a round robin. us.pool.ntp.org is a good one. Thanks all. Guess I Since I'm in the us, I will go with ( should have stated I was in the us ) 0.us.pool.ntp.org 1.us.pool.ntp.org for now. Its my first time to setup one up an was not sure what was good one to use. thanks -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Thanks all I have it setup on the new server here now an plan to start using it as I move things over this server. Thanks all for suggestions. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Bryen wrote:
Depends where you live. The closer to an NTP server, the better.
beware the net :-!, geografically closer don't mean internet closer, most ISP don't route locally on 10.3, Yast have a automatic option.I used it and it worked (I don't know what server is used) jdd -- http://www.dodin.net http://www.ladepeche.fr/article/2007/10/27/127022-Claire-Dodin-une-Toulousai... -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Jack Malone wrote:
Just wondering what ntp servers people here prefer to use. I have done a google search an get a list of the public servers but wanted to see which ones people here on the list use.
Thanks
WHY? Just pick the one closest to you and it will work. Ken -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Ken Schneider wrote:
Jack Malone wrote:
Just wondering what ntp servers people here prefer to use. I have done a google search an get a list of the public servers but wanted to see which ones people here on the list use.
Thanks
WHY?
Just pick the one closest to you and it will work.
Ken
Of course, that should be network closest. Depending on your ISP's peering arrangement, a server that's physically close may be more hops away, than one near where you ISP peers with others. But then again, if accuracy is that critical, perhaps your own stratum 1 server is in order. All it takes is a GPS or other time source receiver, connected to your computer. -- Use OpenOffice.org http://www.openoffice.org -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Mon, 2007-11-05 at 10:39 -0500, Ken Schneider wrote:
Jack Malone wrote:
Just wondering what ntp servers people here prefer to use. I have done a google search an get a list of the public servers but wanted to see which ones people here on the list use.
Thanks
WHY?
He's asking why because there are some unreliable NTP servers out there. I've come across one or two in my time over the years that were horribly unreliable and needed to be put in front of a firing range and shot. It was a perfectly legitimate question on his part.
Just pick the one closest to you and it will work.
Ken -- ---Bryen---
-- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 The Monday 2007-11-05 at 09:49 -0600, Bryen wrote:
WHY?
He's asking why because there are some unreliable NTP servers out there. I've come across one or two in my time over the years that were horribly unreliable and needed to be put in front of a firing range and shot.
Then just define a bunch of servers from the pool, like a dozen. The daemon will evaluate them all and choose the best one automatically. No problemo! :-p - -- Cheers, Carlos E. R. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4-svn0 (GNU/Linux) Comment: Made with pgp4pine 1.76 iD8DBQFHL0SHtTMYHG2NR9URAjatAJ0UNhpdQ16LR+VVWZ2A1iysUK4w6QCfWV+U R37kmfvQxQS2xGX/JXEl+QQ= =xn7+ -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Bryen wrote:
On Mon, 2007-11-05 at 10:39 -0500, Ken Schneider wrote:
Jack Malone wrote:
Just wondering what ntp servers people here prefer to use. I have done a google search an get a list of the public servers but wanted to see which ones people here on the list use.
Thanks
WHY?
He's asking why because there are some unreliable NTP servers out there. I've come across one or two in my time over the years that were horribly unreliable and needed to be put in front of a firing range and shot.
It was a perfectly legitimate question on his part.
Yes, and opinions are like belly buttons, everyone has one. And if the first one you pick doesn't work go back and choose a different one. Ken -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Jack Malone wrote:
Just wondering what ntp servers people here prefer to use. I have done a google search an get a list of the public servers but wanted to see which ones people here on the list use.
That's certainly a wide open question, given that there are users around the world. Generally, you want one that's close to where you are. There are also NTP pools which will redirect you to an available server. You can also have your own stratum 1 server, by using a radio receiver clock that's synced to one of the time & frequency standard signals, to GPS or the CDMA cell phone network. Some ISP's also provide NTP servers. You'll just have to look up the NTP server list and find one that's good for you. -- Use OpenOffice.org http://www.openoffice.org -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Just wondering what ntp servers people here prefer to use. I have done a google search an get a list of the public servers but wanted to see which ones people here on the list use. I noticed that no one else has mentioned this so I would like to add a suggestion. One of our sysadmins here at work tells me
Jack Malone wrote: that good time is important to DNS servers so he suggested just using the ISP's DNS server for your NTP server. Anyone else have any comments on that? Damon Register -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Damon Register wrote:
Just wondering what ntp servers people here prefer to use. I have done a google search an get a list of the public servers but wanted to see which ones people here on the list use. I noticed that no one else has mentioned this so I would like to add a suggestion. One of our sysadmins here at work tells me
Jack Malone wrote: that good time is important to DNS servers so he suggested just using the ISP's DNS server for your NTP server. Anyone else have any comments on that?
Aside from the fact that my ISP doesn't provide NTP on the DNS server, why is DNS time so critical? DNS is simply a database lookup function. -- Use OpenOffice.org http://www.openoffice.org -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 James Knott wrote:
Damon Register wrote:
Just wondering what ntp servers people here prefer to use. I have done a google search an get a list of the public servers but wanted to see which ones people here on the list use. I noticed that no one else has mentioned this so I would like to add a suggestion. One of our sysadmins here at work tells me
Jack Malone wrote: that good time is important to DNS servers so he suggested just using the ISP's DNS server for your NTP server. Anyone else have any comments on that?
Aside from the fact that my ISP doesn't provide NTP on the DNS server, why is DNS time so critical? DNS is simply a database lookup function.
But are not inter DNS server updates time stamped?... I would expect a DNS server to reasonably well time synchronised... but I would be surprised it acted as an ntp server as well... - -- ============================================================================== I have always wished that my computer would be as easy to use as my telephone. My wish has come true. I no longer know how to use my telephone. Bjarne Stroustrup ============================================================================== -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iD8DBQFHMG3TasN0sSnLmgIRAnv+AKD2gDFvrmnIabU3XGO7SUK9TqjdawCcDnrm E1RUcRSoVHhJYujN5p26Rts= =PyWh -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On Tuesday 06 November 2007 05:36, G T Smith wrote:
James Knott wrote:
Damon Register wrote:
...
I noticed that no one else has mentioned this so I would like to add a suggestion. One of our sysadmins here at work tells me that good time is important to DNS servers so he suggested just using the ISP's DNS server for your NTP server. Anyone else have any comments on that?
Aside from the fact that my ISP doesn't provide NTP on the DNS server, why is DNS time so critical? DNS is simply a database lookup function.
But are not inter DNS server updates time stamped?... I would expect a DNS server to reasonably well time synchronised... but I would be surprised it acted as an ntp server as well...
I doubt DNS aging rules need millisecond-level precision and accuracy to operate properly or reliably. NTP is a high-precision, high-accuracy time protocol. From Wikipedia: -==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==- NTP uses Marzullo's algorithm with the UTC time scale, including support for features such as leap seconds. NTPv4 can usually maintain time to within 10 milliseconds (1/100 s) over the public Internet, and can achieve accuracies of 200 microseconds (1/5000 s) or better in local area networks under ideal conditions. -==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==- Randall Schulz -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Randall R Schulz wrote:
On Tuesday 06 November 2007 05:36, G T Smith wrote:
James Knott wrote:
Damon Register wrote:
...
Aside from the fact that my ISP doesn't provide NTP on the DNS server, why is DNS time so critical? DNS is simply a database lookup function.
But are not inter DNS server updates time stamped?... I would expect a DNS server to reasonably well time synchronised... but I would be surprised it acted as an ntp server as well...
I doubt DNS aging rules need millisecond-level precision and accuracy to operate properly or reliably. NTP is a high-precision, high-accuracy time protocol.
Agreed... but DNS requires some sort of time control, John seemed to be saying that DNS is simply a database, it is a synchronised distributed database (a much more hairy beast ) ... From the client end all one is doing is a database lookup, but the servers need methods to ensure that the information they hold is reasonably sane, time is just one part of this process... Similarly for Directory Service Servers which are usually synchronised against an ntp time source and may actually take on the workstation time synchronising role in some environments because it is fairly important that both workstations and their servers are in reasonable agreement about time (OK they can all be on the wrong time but that is a different can of worms )... And I emphasise reasonable ... usually about a couple of minutes or so in either direction, more than that and one could be in trouble...
Randall Schulz
- -- ============================================================================== I have always wished that my computer would be as easy to use as my telephone. My wish has come true. I no longer know how to use my telephone. Bjarne Stroustrup ============================================================================== -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iD8DBQFHMJ+1asN0sSnLmgIRAi6CAKDOW7XDqqbdp8Fnqrh8PAy/SIB2+gCggo1A S1KMnB9HNSlcp8YqSlcKjk0= =IB2p -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
G T Smith wrote:
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
James Knott wrote:
Damon Register wrote:
Jack Malone wrote:
Just wondering what ntp servers people here prefer to use. I have done a google search an get a list of the public servers but wanted to see which ones people here on the list use.
I noticed that no one else has mentioned this so I would like to add a suggestion. One of our sysadmins here at work tells me that good time is important to DNS servers so he suggested just using the ISP's DNS server for your NTP server. Anyone else have any comments on that?
Aside from the fact that my ISP doesn't provide NTP on the DNS server, why is DNS time so critical? DNS is simply a database lookup function.
But are not inter DNS server updates time stamped?... I would expect a DNS server to reasonably well time synchronised... but I would be surprised it acted as an ntp server as well...
I'd expect any server to have accurate time, but I doubt any server synced via NTP would be off enough to be critical. As for whether the DNS server supports NTP, well that's entirely up to whoever sets up the servers. In offices, it may be common to have one server do several tasks, such as DNS, DHCP, NTP and other functions too. -- Use OpenOffice.org http://www.openoffice.org -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Jack Malone wrote:
Just wondering what ntp servers people here prefer to use. I have done a google search an get a list of the public servers but wanted to see which ones people here on the list use.
Thanks
Being a good Aggie, I prefer: server ntppub.tamu.edu -- David C. Rankin, J.D., P.E. Rankin Law Firm, PLLC 510 Ochiltree Street Nacogdoches, Texas 75961 Telephone: (936) 715-9333 Facsimile: (936) 715-9339 www.rankinlawfirm.com -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
participants (12)
-
Bryen -
Carlos E. R. -
Damon Register -
Daniel Goldsmith -
David C. Rankin -
G T Smith -
Jack Malone -
James Knott -
jdd -
Ken Schneider -
Randall R Schulz -
Robert Scheck