Operating System - HP-UX
1819835 Members
2830 Online
109607 Solutions
New Discussion юеВ

Re: Public NTP time server in Atlanta, GA USA

 
SOLVED
Go to solution
A. Daniel King_1
Super Advisor

Public NTP time server in Atlanta, GA USA

Is there a reliable, long-term, non-stratum-1, public NTP server in or near Atlanta, Georgia?

I know HP is here locally, but I understand that their public server is in California.

I'd like to get geographically as close as possible, as well as the fewest number of hops.

Thanks in advance.
Command-Line Junkie
3 REPLIES 3
A. Clay Stephenson
Acclaimed Contributor
Solution

Re: Public NTP time server in Atlanta, GA USA

The U. S. Naval Observatory is hard to beat and you really don't have to work about hops. You don't want a single timesource but rather several. These times are compared and the delays are actually anticipated and there is a correction algorithm. Just select a number of Stratum-1 timesources and NTP will deal with the delays.
If it ain't broke, I can fix that.
John Poff
Honored Contributor

Re: Public NTP time server in Atlanta, GA USA

Hi,

I did a search on Google for "ntp servers" and found a URL lists public NTP secondary (stratum 2) time servers. The URL doesn't seem to work, but it is available in their cache. I don't know if the list is good or not, but I did a DNS lookup on them and they returned IP addresses, so maybe they are good. They want you to contact them before using them. I agree with Clay. We have our ntp server pointed to the USNO and it works fine. They have a real interest in keeping the correct time, and if you can't get to them you'll probably have bigger problems to solve anyway.


http://www.eecis.udel.edu/~mills/ntp/clock2.html


It lists three servers in Atlanta:

US GA ntp.shorty.com
Location: CNSG, Atlanta, GA
Synchronization: NTP secondary (stratum 2), PC/Linux
Service Area: Southeast United States
Access Policy: Open access, please send an email to notify before use.
Contact: timelords@shorty.com
Note: Please use the CNAME ntp. IP addresses can (and likely will) change.


US GA rolex.usg.edu
Location: University System of Georgia NOC, Atlanta, GA
Synchronization: NTP secondary (stratum 2)
Service Area: PeachNet (Georgia)
Access Policy: open access, please send a message with the hostname and/or address of your NTP client to notify.
Contact: timekeeper@usg.edu


US GA timex.usg.edu
Location: University System of Georgia NOC, Atlanta, GA
Synchronization: NTP secondary (stratum 2)
Service Area: PeachNet (Georgia)
Access Policy: open access, please send a message with the hostname and/or address of your NTP client to notify.
Contact: timekeeper@usg.edu



JP

A. Daniel King_1
Super Advisor

Re: Public NTP time server in Atlanta, GA USA

These sites proved most useful for selecting specific NTP time sources:

http://tycho.usno.navy.mil/ntp.html
http://boulder.nist.gov/timefreq/service/time-servers.html

Thanks, all.
Command-Line Junkie