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Special Forums Windows & DOS: Issues & Discussions Home Questions Tags Users Unanswered Windows 2016 DNS server returns SERVFAIL for non-existing doma Post 303043685 by broy32000 on Monday 3rd of February 2020 07:57:39 PM
Old 02-03-2020
Some more evidences:
Code:
19:20:00.768582 IP 172.18.140.80.43432 > 172.28.3.40.53: 62969+ AAAA? DMPCUSG01. (27)
19:20:00.769278 IP 172.28.3.40.53 > 172.18.140.80.43432: 62969 ServFail 0/0/0 (27)
19:20:00.769344 IP 172.18.140.80.43433 > 172.18.3.40.53: 62969+ AAAA? DMPCUSG01. (27)
19:20:00.769775 IP 172.18.3.40.53 > 172.18.140.80.43433: 62969 ServFail 0/0/0 (27)
20:30:01.433471 IP 172.18.140.80.46031 > 172.28.3.40.53: 62969+ AAAA? DMPCUSG01. (27)
20:30:01.434064 IP 172.28.3.40.53 > 172.18.140.80.46031: 62969 ServFail 0/0/0 (27)
20:30:01.434163 IP 172.18.140.80.46033 > 172.18.3.40.53: 62969+ AAAA? DMPCUSG01. (27)
20:30:01.434361 IP 172.18.3.40.53 > 172.18.140.80.46033: 62969 ServFail 0/0/0 (27)

The above shows same transaction ID/query ID repeat for more than an hour

The below shows same queryID for different query
Code:
19:30:06.039765 IP 172.18.140.80.43852 > 172.28.3.40.53: 56554+ AAAA? 172.18.140.80.sg.uobnet.com. (45)
19:30:06.040741 IP 172.28.3.40.53 > 172.18.140.80.43852: 56554 NXDomain* 0/1/0 (110)
19:30:06.644668 IP 172.18.140.80.43873 > 172.28.3.40.53: 56554+ AAAA? DMPCUSG01. (27)
19:30:06.645465 IP 172.28.3.40.53 > 172.18.140.80.43873: 56554 ServFail 0/0/0 (27)
19:30:06.646417 IP 172.18.140.80.43876 > 172.18.3.40.53: 56554+ AAAA? DMPCUSG01. (27)
19:30:06.646762 IP 172.18.3.40.53 > 172.18.140.80.43876: 56554 ServFail 0/0/0 (27)
19:30:11.677793 IP 172.18.140.80.43931 > 172.28.3.40.53: 56554+ AAAA? DMPUSG01. (26)
19:30:11.678681 IP 172.28.3.40.53 > 172.18.140.80.43931: 56554 ServFail 0/0/0 (26)
19:30:11.678892 IP 172.18.140.80.43932 > 172.18.3.40.53: 56554+ AAAA? DMPUSG01. (26)
19:30:11.679180 IP 172.18.3.40.53 > 172.18.140.80.43932: 56554 ServFail 0/0/0 (26)
19:30:15.333065 IP 172.18.140.80.43939 > 172.28.3.40.53: 56554+ AAAA? DMPCUSG03. (27)
19:30:15.334013 IP 172.28.3.40.53 > 172.18.140.80.43939: 56554 ServFail 0/0/0 (27)
19:30:15.334393 IP 172.18.140.80.43940 > 172.18.3.40.53: 56554+ AAAA? DMPCUSG03. (27)
19:30:15.335231 IP 172.18.3.40.53 > 172.18.140.80.43940: 56554 ServFail 0/0/0 (27)
19:30:15.734408 IP 172.18.140.80.43950 > 172.28.3.40.53: 56554+ AAAA? DMPCUSG03. (27)
19:30:15.735368 IP 172.28.3.40.53 > 172.18.140.80.43950: 56554 ServFail 0/0/0 (27)
19:30:15.735561 IP 172.18.140.80.43951 > 172.18.3.40.53: 56554+ AAAA? DMPCUSG03. (27)
19:30:15.735866 IP 172.18.3.40.53 > 172.18.140.80.43951: 56554 ServFail 0/0/0 (27)
19:30:16.869232 IP 172.18.140.80.44008 > 172.28.3.40.53: 56554+ AAAA? DMPUSG01. (26)
19:30:16.869946 IP 172.28.3.40.53 > 172.18.140.80.44008: 56554 ServFail 0/0/0 (26)
19:30:16.902206 IP 172.18.140.80.44010 > 172.18.3.40.53: 56554+ AAAA? DMPUSG01. (26)
19:30:16.902499 IP 172.18.3.40.53 > 172.18.140.80.44010: 56554 ServFail 0/0/0 (26)

Moderator's Comments:
Mod Comment Please use code tags for the code and data you post, thanks

Last edited by vbe; 02-04-2020 at 04:31 AM..
 

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