hey 8O)
/etc/ntp.conf does not exist on my ssytem.
and the command: $ cd /etc && grep -R 'ntp\.ubuntu' 2>/dev/null
returns: nothing.
but still via wireshark, today..
----------------------------
15 2019-10-26 10:12:55,145091472 127.0.0.1 127.0.1.1 DNS 76 Standard query
0xd9c9 A ntp.ubuntu.com
16 2019-10-26 10:12:55,145125415 127.0.0.1 127.0.1.1 DNS 76 Standard query
0xd66c AAAA ntp.ubuntu.com
17 2019-10-26 10:12:55,145318876 and here my router
18 2019-10-26 10:12:55,147059530 and her my router
19 2019-10-26 10:12:55,147076781 192.168.8.100 192.168.8.1 DNS 76 Standard
query 0xf23b A ntp.ubuntu.com
20 2019-10-26 10:12:55,147092774 192.168.8.100 91.239.100.100 DNS 76 Standard
query 0xf23b A ntp.ubuntu.com
21 2019-10-26 10:12:55,147099549 192.168.8.100 89.233.43.71 DNS 76 Standard
query 0xf23b A ntp.ubuntu.com
22 2019-10-26 10:12:55,147105067 192.168.8.100 192.168.8.1 DNS 76 Standard
query 0x0373 AAAA ntp.ubuntu.com
23 2019-10-26 10:12:55,147109397 192.168.8.100 91.239.100.100 DNS 76 Standard
query 0x0373 AAAA ntp.ubuntu.com
24 2019-10-26 10:12:55,147113238 192.168.8.100 89.233.43.71 DNS 76 Standard
query 0x0373 AAAA ntp.ubuntu.com
25 2019-10-26
10:12:55,202437103 91.239.100.100 192.168.8.100 DNS 220 Standard query
response 0xf23b A ntp.ubuntu.com A 91.189.91.157 A 91.189.89.199 A
91.189.94.4 A 91.189.89.198 NS ns2.canonical.com NS ns1.canonical.com NS
ns3.canonical.com A 91.189.94.173
26 2019-10-26 10:12:55,202657173 127.0.1.1 127.0.0.1 DNS 220 Standard query
response 0xd9c9 A ntp.ubuntu.com A 91.189.91.157 A 91.189.89.199 A
91.189.94.4 A 91.189.89.198 NS ns2.canonical.com NS ns1.canonical.com NS
ns3.canonical.com A 91.189.94.173
27 2019-10-26
10:12:55,207369015 91.239.100.100 192.168.8.100 DNS 212 Standard query
response 0x0373 AAAA ntp.ubuntu.com AAAA 2001:67c:1560:8003::c7 AAAA
2001:67c:1560:8003::c8 NS ns2.canonical.com NS ns1.canonical.com NS
ns3.canonical.com A 91.189.94.173
28 2019-10-26 10:12:55,207633783 127.0.1.1 127.0.0.1 DNS 212 Standard query
response 0xd66c AAAA ntp.ubuntu.com AAAA 2001:67c:1560:8003::c7 AAAA
2001:67c:1560:8003::c8 NS ns2.canonical.com NS ns1.canonical.com NS
ns3.canonical.com A 91.189.94.173
29 2019-10-26 10:12:55,208211371 192.168.8.1 192.168.8.100 DNS 140 Standard
query response 0xf23b A ntp.ubuntu.com A 91.189.89.199 A 91.189.89.198 A
91.189.91.157 A 91.189.94.4
30 2019-10-26 10:12:55,209068393 192.168.8.1 192.168.8.100 DNS 132 Standard
query response 0x0373 AAAA ntp.ubuntu.com AAAA 2001:67c:1560:8003::c7 AAAA
2001:67c:1560:8003::c8
31 2019-10-26 10:12:55,227552587 89.233.43.71 192.168.8.100 DNS 252 Standard
query response 0xf23b A ntp.ubuntu.com A 91.189.94.4 A 91.189.89.199 A
91.189.91.157 A 91.189.89.198 NS ns1.canonical.com NS ns2.canonical.com NS
ns3.canonical.com A 91.189.94.173 A 91.189.95.3 A 91.189.91.139
32 2019-10-26 10:12:55,227975057 89.233.43.71 192.168.8.100 DNS 244 Standard
query response 0x0373 AAAA ntp.ubuntu.com AAAA 2001:67c:1560:8003::c7 AAAA
2001:67c:1560:8003::c8 NS ns2.canonical.com NS ns1.canonical.com NS
ns3.canonical.com A 91.189.94.173 A 91.189.95.3 A 91.189.91.139
33 2019-10-26 10:12:55,250888236 192.168.8.100 91.189.91.157 NTP 92 NTP
Version 4, client
34 2019-10-26 10:12:55,425531394 91.189.91.157 192.168.8.100 NTP 92 NTP
Version 4, server
----------------------------
what is going on here i dont know 8O(
