Differences

This shows you the differences between two versions of the page.

--- ntp:ntp_pools [2021/09/23 10:23] – created bstafford
+++ ntp:ntp_pools [2026/02/17 03:59] (current) – bstafford
@@ Line 1: / Line 1: @@
 ====== Public NTP Servers ======
-  * There is a dedicated page to [[networking:ntp|general NTP]].
+  * There is a dedicated page to [[ntp:ntp|general NTP]].
-  * There is a dedicated page to [[infoblox:ntp|Infoblox NTP]].
+  * There is a dedicated page to [[infoblox:ntp_on_infoblox|Infoblox NTP]].
 ===== pool.ntp.org =====
-**DO NOT** use burst or iburst against public NTP servers unless they are announced they accept it (e.g. don't use it against *.ntp.org servers). More details [[networking:ntp#burst_and_iburst|here]].
+**DO NOT** use burst or iburst against public NTP servers unless they are announced they accept it (e.g. don't use it against *.ntp.org servers). More details [[ntp:ntp#burst_and_iburst|here]].
 **DO NOT** configure your system to use leap-smearing NTP servers as well as non-leap-smearing NTP servers at the same time. e.g. do not combine Google NTP with Cloudflare NTP. See [[ntp_pools#leap_smearing|here]].
@@ Line 38: / Line 38: @@
 In addition to pool.ntp.org, there are several other publicly accessible NTP servers (some of which also appear in pool.ntp.org).
-**DO NOT** use burst or iburst against public NTP servers unless they are announced they accept it (e.g. don't use it against *.ntp.org servers). More details [[networking:ntp#burst_and_iburst|here]].
+**DO NOT** use burst or iburst against public NTP servers unless they are announced they accept it (e.g. don't use it against *.ntp.org servers). More details [[ntp#burst_and_iburst|here]].
 **DO NOT** configure your system to use leap-smearing NTP servers as well as non-leap-smearing NTP servers at the same time. e.g. do not combine Google NTP with Cloudflare NTP. See [[ntp_pools#leap_smearing|here]].
+For your time source list, also consider using one or two from  and something appropriate (Top Public Time Servers) from .
 Lists of Stratum 1 servers are here:
   * [[http://tf.nist.gov/tf-cgi/servers.cgi|NIST]]
   * [[http://support.ntp.org/bin/view/Servers/StratumOneTimeServers|ntp.org]]
+Useful GitHub list [[https://gist.github.com/mutin-sa/eea1c396b1e610a2da1e5550d94b0453|here]].
 Examples are:
@@ Line 52: / Line 58: @@
 Cloudflare's service provides NTP services over their anycast network of over 180 locations worldwide. Cloudflare's NTP server already support NTS. If you have an NTS client you can point it at time.cloudflare.com:1234
+More information on [[https://gist.github.com/n1zyy/d58555b0d6ffe5d935bb7c0ccf19eada|Apple time]].
 ^Operator ^ Server FQDN ^ Server IP ^ Stratum ^ RefID ^ Source Type or FQDN ^ Delay ^
@@ Line 81: / Line 89: @@
 | Facebook | time4.facebook.com | 129.134.26.123 | 1 | .FB... | N/A | 18.341 |
 | Facebook | time5.facebook.com | 129.134.27.123 | 1 | .FB... | N/A | 16.546 |
+| AWS | ? | 169.254.169.123 | ? | ? | ? | ? |
 | Apple | time.apple.com | 17.253.108.253 (and others)  | 1 | .SHM. |  | 17.343 |
 | Apple | time.euro.apple.com | 17.253.34.125 (and others) | 1 | .SHM. |  |  9.889 |
@@ Line 90: / Line 99: @@
 | Leo Bodnar Electronics | ntp9.leontp.com | 85.199.214.102 | 1 | .GPS. | N/A | 15.965 |
 | Xentex IT Solutions | ntp.xtx.cloud | 81.133.66.177 | 1 | .PPS. | N/A | 24.301 |
+| Nest | time.nest.com | 216.239.35.0 | 1 | .GOOG. | N/A | 11.6 |