NTP server stats - dreamstation.systems ======================================= we run two time servers. dreamstation.systems is a member of pool.ntp.org, serving time on UDP/123 (plain NTP) and TCP/4460 (NTS). starport.dreamstation.systems serves time on UDP/123 (plain NTP), and gets its own time from dreamstation over NTS. these are some live stats for both, regenerated every 5 minutes from each box's chronyd and a standing nftables packet counter. right now --------- dreamstation starport ------------ -------- queries/second 3.2k 6.0k 30-minute average 3.3k 6.5k 24-hour average 3.7k 7.2k 7-day average 7.3k 6.9k bandwidth serving time 241.0 KiB/s 446.9 KiB/s 24-hour average 278.1 KiB/s 536.5 KiB/s clients rate-limited 0.0% 0.4% 30-minute average 0.0% 0.3% our stratum 2 3 syncing to ntp.your.org dreamstation.systems rms clock offset 11 microsec 273 microsec averages cover only as much history as a server has: dreamstation: 7.0 days of samples starport: 7.0 days of samples queries per second, last 24 hours (UTC) --------------------------------------- dreamstation starport 12:00 |##################### 4.2k |################## 7.4k 13:00 |##################### 4.1k |################## 7.3k 14:00 |##################### 4.2k |################### 7.6k 15:00 |#################### 4.1k |#################### 8.1k 16:00 |##################### 4.2k |##################### 8.4k 17:00 |#################### 4.1k |##################### 8.3k 18:00 |#################### 3.9k |################### 7.5k 19:00 |################### 3.9k |################## 7.4k 20:00 |################### 3.8k |################### 7.6k 21:00 |################### 3.8k |################### 7.4k 22:00 |################### 3.8k |################## 7.2k 23:00 |################### 3.7k |################## 7.2k 00:00 |################## 3.7k |################## 7.4k 01:00 |################## 3.7k |################## 7.2k 02:00 |################## 3.6k |################## 7.1k 03:00 |################## 3.6k |################# 6.9k 04:00 |################## 3.6k |################ 6.5k 05:00 |################## 3.6k |################ 6.3k 06:00 |################# 3.5k |################# 7.0k 07:00 |################# 3.5k |################# 6.7k 08:00 |################ 3.3k |################ 6.3k 09:00 |################ 3.3k |################ 6.3k 10:00 |################ 3.3k |################ 6.5k 11:00 |################ 3.3k |################ 6.5k each column is scaled to its own peak. '-' = no samples that hour (the server or its sampler was not running yet). clients ------- dreamstation starport ------------ -------- unique IPv4 ever seen 153,901,171 118,498,615 new in last 24h 32,909 1,305,651 unique IPv6 ever seen [unsupported] 22,964,103 in chronyd's live table 4,096 4,096 dreamstation: 1 in every 24 routable IPv4 addresses starport: 1 in every 31 routable IPv4 addresses (the live table caps at 4096 clients per server. the two servers' unique-IP sets are kept separately, so the totals overlap and are not added together.) how often the live clients poll us: dreamstation starport faster than 1s (!) 45 # 360 1s - 8s 54 35 16s - 64s 6 0 2min - 17min 11 0 slower than 17min 1 0 too new to tell ############### 3979 ############### 3701 GeoIP, top 10 ------------- dreamstation starport ------------ -------- United States 3924 95.8% United States 3437 83.9% China 25 0.6% China 156 3.8% United Kingdom 17 0.4% Russia 107 2.6% Aruba 14 0.3% Canada 28 0.7% Russia 13 0.3% Germany 27 0.7% Canada 12 0.3% Mexico 27 0.7% Mexico 8 0.2% United Kingdom 21 0.5% Germany 8 0.2% Dominican Republic 20 0.5% Brazil 6 0.1% Puerto Rico 12 0.3% Guatemala 5 0.1% India 12 0.3% ASN, top 10 ----------- dreamstation starport ------------ -------- Amazon.com, Inc. 1168 28.5% Amazon.com, Inc. 485 11.8% Verizon Business 459 11.2% AT&T Enterprises, L 376 9.2% Comcast Cable Commu 331 8.1% Comcast Cable Commu 347 8.5% AT&T Enterprises, L 263 6.4% Verizon Business 341 8.3% Charter Communicati 185 4.5% Charter Communicati 273 6.7% Metronet 99 2.4% T-Mobile USA, Inc. 111 2.7% Charter Communicati 79 1.9% Charter Communicati 95 2.3% Cox Communications 53 1.3% Space Exploration T 89 2.2% T-Mobile USA, Inc. 49 1.2% Cox Communications 87 2.1% Charter Communicati 43 1.0% Cisco IoT 79 1.9% upstream time sources --------------------- dreamstation: source str reach offset +/- err ------------------------------------------------------- ntp.your.org 1 377 0.78ms 5.59ms <- synced time-d-b.nist.gov 1 377 -0.08ms 17.26ms not combined time-b-wwv.nist.gov 1 377 -0.41ms 17.76ms not combined time-b-b.nist.gov 1 377 -0.47ms 17.69ms not combined time.apple.com 1 377 -1.32ms 11.32ms combined tick.usno.navy.mil 1 363 -3.72ms 19.39ms not combined tock.usno.navy.mil 1 377 -3.50ms 19.78ms not combined starport: source str reach offset +/- err ------------------------------------------------------- dreamstation.systems 2 377 -2.88ms 41.39ms <- synced since each chronyd last started ------------------------------- dreamstation starport ------------ -------- started 2026-10-30 10:01Z 2026-10-29 12:29Z NTP packets answered 20,571,026 590,491,777 NTP packets received 20,584,934 599,321,795 dropped (ratelimit) 13,555 8,677,689 as a share 0.1% 1.4% NTS-KE handshakes 26 NTS not offered dropped 0 - fun numbers ----------- * since the packet counters started, these boxes have told the time 912,505,629 times and served 65.0 GiB of time dreamstation: 312,785,672 times, 22.1 GiB starport: 599,719,957 times, 42.8 GiB * a new NTP query lands on dreamstation every ~308 microseconds (on starport, every ~154 microseconds). every time dreamstation asks its GPS-fed upstream for the time (an ~11ms round trip), another ~36 queries arrive there during the trip. * if every unique client IP were a person, we'd be roughly the population of Japan (dreamstation) and Germany (starport). generated 2026-10-30 11:45:05 UTC starport's figures are collected there every 5 minutes and fetched over SSH once a minute; these are 68s old.