DNSSEC Debugger - umich.edu

Domain Name:

Time: 2025-04-23 17:48:57 UTC

Analyzing DNSSEC problems for umich.edu

DS=20326/SHA-256 is now in the chain-of-trust

	Checking DS between Trust Anchor and .
	`. IN DS ( 20326 8 2 e06d44b80b8f1d39a95c0b0d7c65d08458e880409bbc683457104237c7f8ec8d )`
	Query to c.root-servers.net for ./DNSKEY
	Received 1141 bytes from 192.33.4.12
	;; Response received from [192.33.4.12] 1141 octets ;; HEADER SECTION ;; id = 60377 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 4 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; . IN DNSKEY ;; ANSWER SECTION (4 records) . 172800 IN DNSKEY ( 257 3 8 AwEAAaz/tAm8yTn4Mfeh5eyI96WSVexTBAvkMgJzkKTOiW1vkIbzxeF3+/4RgWOq7HrxRixHlFlE xOLAJr5emLvN7SWXgnLh4+B5xQlNVz8Og8kvArMtNROxVQuCaSnIDdD5LKyWbRd2n9WGe2R8PzgC mr3EgVLrjyBxWezF0jLHwVN8efS3rCj/EWgvIWgb9tarpVUDK/b58Da+sqqls3eNbuv7pr+eoZG+ SrDK6nWeL3c6H5Apxz7LjVc1uTIdsIXxuOLYA4/ilBmSVIzuDWfdRUfhHdY6+cn8HFRm+2hM8AnX GXws9555KrUB5qihylGa8subX2Nn6UwNR1AkUTV74bU= ) ; keytag 20326 . 172800 IN DNSKEY ( 256 3 8 AwEAAbEbGCpGTDrcZTWqWWE72nphyshpRcILdzCVlBGU9Ln1Fui9kkseUOP+g5GLUeVFKdTloeRT A9+EYiQdXgWXmXmuW/nGxZjAikluF/O9NzLVrr5iZnth2xu+F48nrJlAgWWiMNau54NI5sZ3iVQf hFsq2pZmf43RauRPniYMShOLO7EBWWXr5glDSgZGS9fSm6xHwwF+g8D4m8oanjvdCBNxXzSEKS31 ibxjLifTfvwCg3y4XXcNW9U6Nu3JmoKUdxqpPPIkBvVQbIz4UO2FwaR13uXC03ALP1Yx2QNSS4SZ lcIMtAftQR9wtCiuPWQnFv4jkzWqlhp1Lmf7bcoL9yk= ) ; keytag 53148 . 172800 IN DNSKEY ( 257 3 8 AwEAAa96jeuknZlaeSrvyAJj6ZHv28hhOKkx3rLGXVaC6rXTsDc449/cidltpkyGwCJNnOAlFNKF 2jBosZBU5eeHspaQWOmOElZsjICMQMC3aeHbGiShvZsx4wMYSjH8e7Vrhbu6irwCzVBApESjbUdp WWmEnhathWu1jo+siFUiRAAxm9qyJNg/wOZqqzL/dL/q8PkcRU5oUKEpUge71M3ej2/7CPqpdVwu MoTvoB+ZOT4YeGyxMvHmbrxlFzGOHOijtzN+u1TQNatX2XBuzZNQ1K+s2CXkPIZo7s6JgZyvaBev YtxPvYLw4z9mR7K2vaF18UYH9Z9GNUUeayffKC73PYc= ) ; keytag 38696 . 172800 IN RRSIG ( DNSKEY 8 0 172800 20250512000000 20250421000000 20326 . d57ThXzGZNbeW1yPlvFiOt+aiFXSHAsVopf8jxG/JBBNh6Hko6Ey94OI82FSawKHQoc63C7Gt2sD Z4HDn6anc8jy5U4E47VDka/vxOCubiJbD+tU62ADZxENh0mHr/jwODZ1kwbtfFZK2LYoqF2FiDsw IFLZ0serEa73QKNZHPnGOuZgeQMJyBNjovFfAYfLQnOeDHjMTlfp6Ly0l5w+OqS37KjkdXvMUd4M i4ls1PNAPq3OyB2QgCcigUtrjx0Bxuu/4yVVCkRyGaa4L3tI9yIDTCHI2+gI48DpxZaN602BJvVg JDaSIqJ5F4I02bJWuI4ksAxB9Pdsae3JeU5ZbQ== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 3 DNSKEY records for .
	`. 172800 IN DNSKEY ( 257 3 8 AwEAAaz/tAm8yTn4Mfeh5eyI96WSVexTBAvkMgJzkKTOiW1vkIbzxeF3+/4RgWOq7HrxRixHlFlE xOLAJr5emLvN7SWXgnLh4+B5xQlNVz8Og8kvArMtNROxVQuCaSnIDdD5LKyWbRd2n9WGe2R8PzgC mr3EgVLrjyBxWezF0jLHwVN8efS3rCj/EWgvIWgb9tarpVUDK/b58Da+sqqls3eNbuv7pr+eoZG+ SrDK6nWeL3c6H5Apxz7LjVc1uTIdsIXxuOLYA4/ilBmSVIzuDWfdRUfhHdY6+cn8HFRm+2hM8AnX GXws9555KrUB5qihylGa8subX2Nn6UwNR1AkUTV74bU= ) ; keytag 20326`
	`. 172800 IN DNSKEY ( 256 3 8 AwEAAbEbGCpGTDrcZTWqWWE72nphyshpRcILdzCVlBGU9Ln1Fui9kkseUOP+g5GLUeVFKdTloeRT A9+EYiQdXgWXmXmuW/nGxZjAikluF/O9NzLVrr5iZnth2xu+F48nrJlAgWWiMNau54NI5sZ3iVQf hFsq2pZmf43RauRPniYMShOLO7EBWWXr5glDSgZGS9fSm6xHwwF+g8D4m8oanjvdCBNxXzSEKS31 ibxjLifTfvwCg3y4XXcNW9U6Nu3JmoKUdxqpPPIkBvVQbIz4UO2FwaR13uXC03ALP1Yx2QNSS4SZ lcIMtAftQR9wtCiuPWQnFv4jkzWqlhp1Lmf7bcoL9yk= ) ; keytag 53148`
	`. 172800 IN DNSKEY ( 257 3 8 AwEAAa96jeuknZlaeSrvyAJj6ZHv28hhOKkx3rLGXVaC6rXTsDc449/cidltpkyGwCJNnOAlFNKF 2jBosZBU5eeHspaQWOmOElZsjICMQMC3aeHbGiShvZsx4wMYSjH8e7Vrhbu6irwCzVBApESjbUdp WWmEnhathWu1jo+siFUiRAAxm9qyJNg/wOZqqzL/dL/q8PkcRU5oUKEpUge71M3ej2/7CPqpdVwu MoTvoB+ZOT4YeGyxMvHmbrxlFzGOHOijtzN+u1TQNatX2XBuzZNQ1K+s2CXkPIZo7s6JgZyvaBev YtxPvYLw4z9mR7K2vaF18UYH9Z9GNUUeayffKC73PYc= ) ; keytag 38696`
	DNSKEY=20326/SEP is now in the chain-of-trust
	DS=20326/SHA-256 verifies DNSKEY=20326/SEP
	Found 1 RRSIGs over DNSKEY RRset
	`. 172800 IN RRSIG ( DNSKEY 8 0 172800 20250512000000 20250421000000 20326 . d57ThXzGZNbeW1yPlvFiOt+aiFXSHAsVopf8jxG/JBBNh6Hko6Ey94OI82FSawKHQoc63C7Gt2sD Z4HDn6anc8jy5U4E47VDka/vxOCubiJbD+tU62ADZxENh0mHr/jwODZ1kwbtfFZK2LYoqF2FiDsw IFLZ0serEa73QKNZHPnGOuZgeQMJyBNjovFfAYfLQnOeDHjMTlfp6Ly0l5w+OqS37KjkdXvMUd4M i4ls1PNAPq3OyB2QgCcigUtrjx0Bxuu/4yVVCkRyGaa4L3tI9yIDTCHI2+gI48DpxZaN602BJvVg JDaSIqJ5F4I02bJWuI4ksAxB9Pdsae3JeU5ZbQ== )`
	RRSIG=20326 and DNSKEY=20326/SEP verifies the DNSKEY RRset
	DNSKEY=53148 is now in the chain-of-trust
	DNSKEY=38696/SEP is now in the chain-of-trust
	Query to h.root-servers.net for umich.edu/A
	Received 1168 bytes from 198.97.190.53
	;; Response received from [198.97.190.53] 1168 octets ;; HEADER SECTION ;; id = 17438 ;; qr = 1 aa = 0 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 0 ;; nscount = 15 arcount = 27 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; umich.edu. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (15 records) edu. 172800 IN NS a.edu-servers.net. edu. 172800 IN NS b.edu-servers.net. edu. 172800 IN NS c.edu-servers.net. edu. 172800 IN NS d.edu-servers.net. edu. 172800 IN NS e.edu-servers.net. edu. 172800 IN NS f.edu-servers.net. edu. 172800 IN NS g.edu-servers.net. edu. 172800 IN NS h.edu-servers.net. edu. 172800 IN NS i.edu-servers.net. edu. 172800 IN NS j.edu-servers.net. edu. 172800 IN NS k.edu-servers.net. edu. 172800 IN NS l.edu-servers.net. edu. 172800 IN NS m.edu-servers.net. edu. 86400 IN DS ( 35663 13 2 a2e1614291831a4746b5ac52b4b345357687271e85353082741f1cf3d06a4c1d ) edu. 86400 IN RRSIG ( DS 8 1 86400 20250506050000 20250423040000 53148 . dO1qkshwThLQTFp/wKSUM8cbxugnTp2PdklA6zCfs6MP5q6eSjJMsA1Tj/B6RDAXQUX5hl0t1Nue XKi7ZI+VsstI+2++1tYV6JmZrtzAI9ALw00s3L0ipkAiTNcG/VhchySJu2P6sXA4PT3V5eD7fWBH z7Pbuz5s/KNid7zf//yICIDWOJ0EgXxtd+dKe3N30IcVkzs/zAsxB4qDm6z+fn6svP/pKXfmaDeA k5qanhQboSKDlDJjqFtTqUdC20rbeVPpf1IQfP/eJxGT85vxsb15j0mK8mArMS5tvuTm/JHQpkLN uXloQ4CThDUVeKg188jHVZrvf+/EzGbbqbZEOg== ) ;; ADDITIONAL SECTION (27 records) a.edu-servers.net. 172800 IN A 192.5.6.30 b.edu-servers.net. 172800 IN A 192.33.14.30 c.edu-servers.net. 172800 IN A 192.26.92.30 d.edu-servers.net. 172800 IN A 192.31.80.30 e.edu-servers.net. 172800 IN A 192.12.94.30 f.edu-servers.net. 172800 IN A 192.35.51.30 g.edu-servers.net. 172800 IN A 192.42.93.30 h.edu-servers.net. 172800 IN A 192.54.112.30 i.edu-servers.net. 172800 IN A 192.43.172.30 j.edu-servers.net. 172800 IN A 192.48.79.30 k.edu-servers.net. 172800 IN A 192.52.178.30 l.edu-servers.net. 172800 IN A 192.41.162.30 m.edu-servers.net. 172800 IN A 192.55.83.30 a.edu-servers.net. 172800 IN AAAA 2001:503:a83e::2:30 b.edu-servers.net. 172800 IN AAAA 2001:503:231d::2:30 c.edu-servers.net. 172800 IN AAAA 2001:503:83eb::30 d.edu-servers.net. 172800 IN AAAA 2001:500:856e::30 e.edu-servers.net. 172800 IN AAAA 2001:502:1ca1::30 f.edu-servers.net. 172800 IN AAAA 2001:503:d414::30 g.edu-servers.net. 172800 IN AAAA 2001:503:eea3::30 h.edu-servers.net. 172800 IN AAAA 2001:502:8cc::30 i.edu-servers.net. 172800 IN AAAA 2001:503:39c1::30 j.edu-servers.net. 172800 IN AAAA 2001:502:7094::30 k.edu-servers.net. 172800 IN AAAA 2001:503:d2d::30 l.edu-servers.net. 172800 IN AAAA 2001:500:d937::30 m.edu-servers.net. 172800 IN AAAA 2001:501:b1f9::30 ;; { "EDNS-VERSION": 0 }
	Query to l.root-servers.net for edu/DNSKEY
	Received 1162 bytes from 199.7.83.42
	;; Response received from [199.7.83.42] 1162 octets ;; HEADER SECTION ;; id = 63477 ;; qr = 1 aa = 0 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 0 ;; nscount = 15 arcount = 27 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; edu. IN DNSKEY ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (15 records) edu. 172800 IN NS a.edu-servers.net. edu. 172800 IN NS b.edu-servers.net. edu. 172800 IN NS c.edu-servers.net. edu. 172800 IN NS d.edu-servers.net. edu. 172800 IN NS e.edu-servers.net. edu. 172800 IN NS f.edu-servers.net. edu. 172800 IN NS g.edu-servers.net. edu. 172800 IN NS h.edu-servers.net. edu. 172800 IN NS i.edu-servers.net. edu. 172800 IN NS j.edu-servers.net. edu. 172800 IN NS k.edu-servers.net. edu. 172800 IN NS l.edu-servers.net. edu. 172800 IN NS m.edu-servers.net. edu. 86400 IN DS ( 35663 13 2 a2e1614291831a4746b5ac52b4b345357687271e85353082741f1cf3d06a4c1d ) edu. 86400 IN RRSIG ( DS 8 1 86400 20250506050000 20250423040000 53148 . dO1qkshwThLQTFp/wKSUM8cbxugnTp2PdklA6zCfs6MP5q6eSjJMsA1Tj/B6RDAXQUX5hl0t1Nue XKi7ZI+VsstI+2++1tYV6JmZrtzAI9ALw00s3L0ipkAiTNcG/VhchySJu2P6sXA4PT3V5eD7fWBH z7Pbuz5s/KNid7zf//yICIDWOJ0EgXxtd+dKe3N30IcVkzs/zAsxB4qDm6z+fn6svP/pKXfmaDeA k5qanhQboSKDlDJjqFtTqUdC20rbeVPpf1IQfP/eJxGT85vxsb15j0mK8mArMS5tvuTm/JHQpkLN uXloQ4CThDUVeKg188jHVZrvf+/EzGbbqbZEOg== ) ;; ADDITIONAL SECTION (27 records) a.edu-servers.net. 172800 IN A 192.5.6.30 a.edu-servers.net. 172800 IN AAAA 2001:503:a83e::2:30 b.edu-servers.net. 172800 IN A 192.33.14.30 b.edu-servers.net. 172800 IN AAAA 2001:503:231d::2:30 c.edu-servers.net. 172800 IN A 192.26.92.30 c.edu-servers.net. 172800 IN AAAA 2001:503:83eb::30 d.edu-servers.net. 172800 IN A 192.31.80.30 d.edu-servers.net. 172800 IN AAAA 2001:500:856e::30 e.edu-servers.net. 172800 IN A 192.12.94.30 e.edu-servers.net. 172800 IN AAAA 2001:502:1ca1::30 f.edu-servers.net. 172800 IN A 192.35.51.30 f.edu-servers.net. 172800 IN AAAA 2001:503:d414::30 g.edu-servers.net. 172800 IN A 192.42.93.30 g.edu-servers.net. 172800 IN AAAA 2001:503:eea3::30 h.edu-servers.net. 172800 IN A 192.54.112.30 h.edu-servers.net. 172800 IN AAAA 2001:502:8cc::30 i.edu-servers.net. 172800 IN A 192.43.172.30 i.edu-servers.net. 172800 IN AAAA 2001:503:39c1::30 j.edu-servers.net. 172800 IN A 192.48.79.30 j.edu-servers.net. 172800 IN AAAA 2001:502:7094::30 k.edu-servers.net. 172800 IN A 192.52.178.30 k.edu-servers.net. 172800 IN AAAA 2001:503:d2d::30 l.edu-servers.net. 172800 IN A 192.41.162.30 l.edu-servers.net. 172800 IN AAAA 2001:500:d937::30 m.edu-servers.net. 172800 IN A 192.55.83.30 m.edu-servers.net. 172800 IN AAAA 2001:501:b1f9::30 ;; { "EDNS-VERSION": 0 }
	Found child zone edu

edu

	Checking DS between . and edu
	Query to m.root-servers.net for edu/DS
	Received 367 bytes from 202.12.27.33
	;; Response received from [202.12.27.33] 367 octets ;; HEADER SECTION ;; id = 6864 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 2 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; edu. IN DS ;; ANSWER SECTION (2 records) edu. 86400 IN DS ( 35663 13 2 a2e1614291831a4746b5ac52b4b345357687271e85353082741f1cf3d06a4c1d ) edu. 86400 IN RRSIG ( DS 8 1 86400 20250506050000 20250423040000 53148 . dO1qkshwThLQTFp/wKSUM8cbxugnTp2PdklA6zCfs6MP5q6eSjJMsA1Tj/B6RDAXQUX5hl0t1Nue XKi7ZI+VsstI+2++1tYV6JmZrtzAI9ALw00s3L0ipkAiTNcG/VhchySJu2P6sXA4PT3V5eD7fWBH z7Pbuz5s/KNid7zf//yICIDWOJ0EgXxtd+dKe3N30IcVkzs/zAsxB4qDm6z+fn6svP/pKXfmaDeA k5qanhQboSKDlDJjqFtTqUdC20rbeVPpf1IQfP/eJxGT85vxsb15j0mK8mArMS5tvuTm/JHQpkLN uXloQ4CThDUVeKg188jHVZrvf+/EzGbbqbZEOg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 1 DS records for edu in the . zone
	DS=35663/SHA-256 has algorithm ECDSAP256SHA256
	Found 1 RRSIGs over DS RRset
	`edu. 86400 IN RRSIG ( DS 8 1 86400 20250506050000 20250423040000 53148 . dO1qkshwThLQTFp/wKSUM8cbxugnTp2PdklA6zCfs6MP5q6eSjJMsA1Tj/B6RDAXQUX5hl0t1Nue XKi7ZI+VsstI+2++1tYV6JmZrtzAI9ALw00s3L0ipkAiTNcG/VhchySJu2P6sXA4PT3V5eD7fWBH z7Pbuz5s/KNid7zf//yICIDWOJ0EgXxtd+dKe3N30IcVkzs/zAsxB4qDm6z+fn6svP/pKXfmaDeA k5qanhQboSKDlDJjqFtTqUdC20rbeVPpf1IQfP/eJxGT85vxsb15j0mK8mArMS5tvuTm/JHQpkLN uXloQ4CThDUVeKg188jHVZrvf+/EzGbbqbZEOg== )`
	RRSIG=53148 and DNSKEY=53148 verifies the DS RRset
	DS=35663/SHA-256 is now in the chain-of-trust
	`edu. 86400 IN DS ( 35663 13 2 a2e1614291831a4746b5ac52b4b345357687271e85353082741f1cf3d06a4c1d )`
	Query to e.edu-servers.net for edu/DNSKEY
	Received 291 bytes from 192.12.94.30
	;; Response received from [192.12.94.30] 291 octets ;; HEADER SECTION ;; id = 9017 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 3 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; edu. IN DNSKEY ;; ANSWER SECTION (3 records) edu. 86400 IN DNSKEY ( 257 3 13 vqk4cwmCpZkXat25PaOVt3RPYDOmCr8B4D1IynrqSqzs+BeCYI6pnBNRUD9BgfqbxZHyfyDz6vbv 8KQaT7maRw== ) ; keytag 35663 edu. 86400 IN DNSKEY ( 256 3 13 5ImtzG5OqHjNCOhBhQ+IzNMnu0KKRiLUf5wOtBlFSIlmoG0Nv7rhyhCBj2PzyDy3+V0Ncgr5z1GD hOM2W3JcFQ== ) ; keytag 57579 edu. 86400 IN RRSIG ( DNSKEY 13 1 86400 20250505151114 20250420150614 35663 edu. is07qJWJ2CsPgK4pyKnFplVCMfKHbGoSKZAMF2u48l3YaQFzxlMOfrjTSxZPgj2IJX4svHTlf6mo EJQ2OrkbEw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 2 DNSKEY records for edu
	`edu. 86400 IN DNSKEY ( 257 3 13 vqk4cwmCpZkXat25PaOVt3RPYDOmCr8B4D1IynrqSqzs+BeCYI6pnBNRUD9BgfqbxZHyfyDz6vbv 8KQaT7maRw== ) ; keytag 35663`
	`edu. 86400 IN DNSKEY ( 256 3 13 5ImtzG5OqHjNCOhBhQ+IzNMnu0KKRiLUf5wOtBlFSIlmoG0Nv7rhyhCBj2PzyDy3+V0Ncgr5z1GD hOM2W3JcFQ== ) ; keytag 57579`
	DNSKEY=35663/SEP is now in the chain-of-trust
	DS=35663/SHA-256 verifies DNSKEY=35663/SEP
	Found 1 RRSIGs over DNSKEY RRset
	`edu. 86400 IN RRSIG ( DNSKEY 13 1 86400 20250505151114 20250420150614 35663 edu. is07qJWJ2CsPgK4pyKnFplVCMfKHbGoSKZAMF2u48l3YaQFzxlMOfrjTSxZPgj2IJX4svHTlf6mo EJQ2OrkbEw== )`
	RRSIG=35663 and DNSKEY=35663/SEP verifies the DNSKEY RRset
	DNSKEY=57579 is now in the chain-of-trust
	Query to f.edu-servers.net for umich.edu/A
	Received 382 bytes from 192.35.51.30
	;; Response received from [192.35.51.30] 382 octets ;; HEADER SECTION ;; id = 58222 ;; qr = 1 aa = 0 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 0 ;; nscount = 7 arcount = 4 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; umich.edu. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (7 records) umich.edu. 172800 IN NS dns2.itd.umich.edu. umich.edu. 172800 IN NS dns1.itd.umich.edu. umich.edu. 172800 IN NS dns3.umich.org. umich.edu. 172800 IN NS dns4.umich.org. umich.edu. 86400 IN DS ( 41530 13 2 ce51d840fb6e56da4a9fdffd8ce666d3bd6ac63a5a364563554e2b47aa538705 ) umich.edu. 86400 IN DS ( 58714 13 2 337d48a8abb906be668023caea18ab706e1ad702bd5084ee6f0f1ba23e3d4742 ) umich.edu. 86400 IN RRSIG ( DS 13 2 86400 20250430025158 20250423014158 57579 edu. Jdf+re+aQDfNdKaeYjosCutFCVxrZoMh19+fLZ0MPSLbCS0n1a4pK1WUZzLJ+6GFqaq8JkYGFEVc tUhb2V+zNA== ) ;; ADDITIONAL SECTION (4 records) dns2.itd.umich.edu. 172800 IN A 192.12.80.222 dns1.itd.umich.edu. 172800 IN A 192.12.80.214 dns1.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::2 ;; { "EDNS-VERSION": 0 }
	Query to l.edu-servers.net for umich.edu/DNSKEY
	Received 382 bytes from 192.41.162.30
	;; Response received from [192.41.162.30] 382 octets ;; HEADER SECTION ;; id = 58456 ;; qr = 1 aa = 0 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 0 ;; nscount = 7 arcount = 4 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; umich.edu. IN DNSKEY ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (7 records) umich.edu. 172800 IN NS dns2.itd.umich.edu. umich.edu. 172800 IN NS dns1.itd.umich.edu. umich.edu. 172800 IN NS dns3.umich.org. umich.edu. 172800 IN NS dns4.umich.org. umich.edu. 86400 IN DS ( 41530 13 2 ce51d840fb6e56da4a9fdffd8ce666d3bd6ac63a5a364563554e2b47aa538705 ) umich.edu. 86400 IN DS ( 58714 13 2 337d48a8abb906be668023caea18ab706e1ad702bd5084ee6f0f1ba23e3d4742 ) umich.edu. 86400 IN RRSIG ( DS 13 2 86400 20250430025158 20250423014158 57579 edu. Jdf+re+aQDfNdKaeYjosCutFCVxrZoMh19+fLZ0MPSLbCS0n1a4pK1WUZzLJ+6GFqaq8JkYGFEVc tUhb2V+zNA== ) ;; ADDITIONAL SECTION (4 records) dns2.itd.umich.edu. 172800 IN A 192.12.80.222 dns1.itd.umich.edu. 172800 IN A 192.12.80.214 dns1.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::2 ;; { "EDNS-VERSION": 0 }
	Found child zone umich.edu

umich.edu

	Checking DS between edu and umich.edu
	Query to c.edu-servers.net for umich.edu/DS
	Received 1127 bytes from 192.26.92.30
	;; Response received from [192.26.92.30] 1127 octets ;; HEADER SECTION ;; id = 51714 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 3 ;; nscount = 14 arcount = 27 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; umich.edu. IN DS ;; ANSWER SECTION (3 records) umich.edu. 86400 IN DS ( 41530 13 2 ce51d840fb6e56da4a9fdffd8ce666d3bd6ac63a5a364563554e2b47aa538705 ) umich.edu. 86400 IN DS ( 58714 13 2 337d48a8abb906be668023caea18ab706e1ad702bd5084ee6f0f1ba23e3d4742 ) umich.edu. 86400 IN RRSIG ( DS 13 2 86400 20250430025158 20250423014158 57579 edu. Jdf+re+aQDfNdKaeYjosCutFCVxrZoMh19+fLZ0MPSLbCS0n1a4pK1WUZzLJ+6GFqaq8JkYGFEVc tUhb2V+zNA== ) ;; AUTHORITY SECTION (14 records) edu. 172800 IN NS a.edu-servers.net. edu. 172800 IN NS e.edu-servers.net. edu. 172800 IN NS f.edu-servers.net. edu. 172800 IN NS c.edu-servers.net. edu. 172800 IN NS b.edu-servers.net. edu. 172800 IN NS h.edu-servers.net. edu. 172800 IN NS k.edu-servers.net. edu. 172800 IN NS l.edu-servers.net. edu. 172800 IN NS g.edu-servers.net. edu. 172800 IN NS m.edu-servers.net. edu. 172800 IN NS j.edu-servers.net. edu. 172800 IN NS i.edu-servers.net. edu. 172800 IN NS d.edu-servers.net. edu. 172800 IN RRSIG ( NS 13 1 172800 20250430025159 20250423014159 57579 edu. +XB/eZ2eZucDROZZRGBOfYn9mDC+7pBGVSamLEzBs70DOvZFIQHEq3E7rpR11z7TtxvFFSkTOwwR /vMg7rN2TQ== ) ;; ADDITIONAL SECTION (27 records) a.edu-servers.net. 172800 IN A 192.5.6.30 a.edu-servers.net. 172800 IN AAAA 2001:503:a83e::2:30 e.edu-servers.net. 172800 IN A 192.12.94.30 e.edu-servers.net. 172800 IN AAAA 2001:502:1ca1::30 f.edu-servers.net. 172800 IN A 192.35.51.30 f.edu-servers.net. 172800 IN AAAA 2001:503:d414::30 c.edu-servers.net. 172800 IN A 192.26.92.30 c.edu-servers.net. 172800 IN AAAA 2001:503:83eb::30 b.edu-servers.net. 172800 IN A 192.33.14.30 b.edu-servers.net. 172800 IN AAAA 2001:503:231d::2:30 h.edu-servers.net. 172800 IN A 192.54.112.30 h.edu-servers.net. 172800 IN AAAA 2001:502:8cc::30 k.edu-servers.net. 172800 IN A 192.52.178.30 k.edu-servers.net. 172800 IN AAAA 2001:503:d2d::30 l.edu-servers.net. 172800 IN A 192.41.162.30 l.edu-servers.net. 172800 IN AAAA 2001:500:d937::30 g.edu-servers.net. 172800 IN A 192.42.93.30 g.edu-servers.net. 172800 IN AAAA 2001:503:eea3::30 m.edu-servers.net. 172800 IN A 192.55.83.30 m.edu-servers.net. 172800 IN AAAA 2001:501:b1f9::30 j.edu-servers.net. 172800 IN A 192.48.79.30 j.edu-servers.net. 172800 IN AAAA 2001:502:7094::30 i.edu-servers.net. 172800 IN A 192.43.172.30 i.edu-servers.net. 172800 IN AAAA 2001:503:39c1::30 d.edu-servers.net. 172800 IN A 192.31.80.30 d.edu-servers.net. 172800 IN AAAA 2001:500:856e::30 ;; { "EDNS-VERSION": 0 }
	Found 2 DS records for umich.edu in the edu zone
	DS=41530/SHA-256 has algorithm ECDSAP256SHA256
	DS=58714/SHA-256 has algorithm ECDSAP256SHA256
	Found 1 RRSIGs over DS RRset
	`umich.edu. 86400 IN RRSIG ( DS 13 2 86400 20250430025158 20250423014158 57579 edu. Jdf+re+aQDfNdKaeYjosCutFCVxrZoMh19+fLZ0MPSLbCS0n1a4pK1WUZzLJ+6GFqaq8JkYGFEVc tUhb2V+zNA== )`
	RRSIG=57579 and DNSKEY=57579 verifies the DS RRset
	DS=41530/SHA-256 is now in the chain-of-trust
	DS=58714/SHA-256 is now in the chain-of-trust
	`umich.edu. 86400 IN DS ( 41530 13 2 ce51d840fb6e56da4a9fdffd8ce666d3bd6ac63a5a364563554e2b47aa538705 )`
	`umich.edu. 86400 IN DS ( 58714 13 2 337d48a8abb906be668023caea18ab706e1ad702bd5084ee6f0f1ba23e3d4742 )`
	Query to dns4.umich.org for umich.edu/DNSKEY
	Received 408 bytes from 3.133.73.51
	;; Response received from [3.133.73.51] 408 octets ;; HEADER SECTION ;; id = 34646 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 4 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; umich.edu. IN DNSKEY ;; ANSWER SECTION (4 records) umich.edu. 1800 IN DNSKEY ( 256 3 13 aW45rB3eswlIDQcFweVLA25EFKq7wVJfCneHLUqbZc+fKCB3TXuS2q9IJi2Efu8Zzwp9Bz69SpaY Mg6+qLxTDg== ) ; keytag 2127 umich.edu. 1800 IN DNSKEY ( 257 3 13 iTDMttJDiv7po2Of2ysenghDasMCaEwuvBk2+uqgVO0kJTJztZbeKAjioUVBYnprwcNtAbqurMym ySzysYWHBw== ) ; keytag 58714 umich.edu. 1800 IN RRSIG ( DNSKEY 13 2 1800 20250522104202 20250422094202 2127 umich.edu. 83/hNU7LrbT/BN0DBGRe3ae8/F4GWZAm911tVzuVcEuV/qGLVP0bCC+WUrtA36AChZ3lQPUe5Rac HyyUFp7R9A== ) umich.edu. 1800 IN RRSIG ( DNSKEY 13 2 1800 20250522104202 20250422094202 58714 umich.edu. pbQD3QCgh94RYA6s9lmjHJX60z3mtAJpP2Fl4P8ZUkuGi4Mb6x18c4Q/gaNjHVmWmlLIlaUEbOTL aWay951nFA== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 2 DNSKEY records for umich.edu
	`umich.edu. 1800 IN DNSKEY ( 256 3 13 aW45rB3eswlIDQcFweVLA25EFKq7wVJfCneHLUqbZc+fKCB3TXuS2q9IJi2Efu8Zzwp9Bz69SpaY Mg6+qLxTDg== ) ; keytag 2127`
	`umich.edu. 1800 IN DNSKEY ( 257 3 13 iTDMttJDiv7po2Of2ysenghDasMCaEwuvBk2+uqgVO0kJTJztZbeKAjioUVBYnprwcNtAbqurMym ySzysYWHBw== ) ; keytag 58714`
	DNSKEY=58714/SEP is now in the chain-of-trust
	DS=58714/SHA-256 verifies DNSKEY=58714/SEP
	DS=41530/SHA-256 is published, but a corresponding DNSKEY is not
	Found 2 RRSIGs over DNSKEY RRset
	`umich.edu. 1800 IN RRSIG ( DNSKEY 13 2 1800 20250522104202 20250422094202 2127 umich.edu. 83/hNU7LrbT/BN0DBGRe3ae8/F4GWZAm911tVzuVcEuV/qGLVP0bCC+WUrtA36AChZ3lQPUe5Rac HyyUFp7R9A== )`
	`umich.edu. 1800 IN RRSIG ( DNSKEY 13 2 1800 20250522104202 20250422094202 58714 umich.edu. pbQD3QCgh94RYA6s9lmjHJX60z3mtAJpP2Fl4P8ZUkuGi4Mb6x18c4Q/gaNjHVmWmlLIlaUEbOTL aWay951nFA== )`
	RRSIG=2127 and DNSKEY=2127 verifies the DNSKEY RRset
	RRSIG=58714 and DNSKEY=58714/SEP verifies the DNSKEY RRset
	DNSKEY=2127 is now in the chain-of-trust
	Query to dns1.itd.umich.edu for umich.edu/A
	Received 489 bytes from 192.12.80.214
	;; Response received from [192.12.80.214] 489 octets ;; HEADER SECTION ;; id = 36056 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 3 ;; nscount = 5 arcount = 7 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; umich.edu. IN A ;; ANSWER SECTION (3 records) umich.edu. 1800 IN A 162.159.140.37 umich.edu. 1800 IN A 172.66.0.37 umich.edu. 1800 IN RRSIG ( A 13 2 1800 20250503185803 20250422094202 2127 umich.edu. WwtAjmESEOlyLwWqdAMGqTqUimvtil0karSzWLwSHJ6QlE83NZp8dV/v0wOngb4MzxzfhIYLmQpq RQm1sQGO5g== ) ;; AUTHORITY SECTION (5 records) umich.edu. 172800 IN NS dns3.umich.org. umich.edu. 172800 IN NS dns4.umich.org. umich.edu. 172800 IN NS dns1.itd.umich.edu. umich.edu. 172800 IN NS dns2.itd.umich.edu. umich.edu. 172800 IN RRSIG ( NS 13 2 172800 20250503185803 20250422094202 2127 umich.edu. td8HzUtcgxtrfuYWQTQ31AGKbe9dxvCW5kbLunZzD9C8vaAseVs8bkNdo/NVy90JmNXwWjSlbmsN IdBlVTrMaQ== ) ;; ADDITIONAL SECTION (7 records) dns2.itd.umich.edu. 1800 IN A 192.12.80.222 dns1.itd.umich.edu. 1800 IN A 192.12.80.214 dns3.umich.org. 1800 IN A 18.225.0.3 dns4.umich.org. 1800 IN A 3.133.73.51 dns2.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::12 dns1.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::2 ;; { "EDNS-VERSION": 0 }
	dns1.itd.umich.edu is authoritative for umich.edu
	Found RRSIG signed by umich.edu zone
	Query to dns4.umich.org for umich.edu/SOA
	Received 524 bytes from 3.133.73.51
	;; Response received from [3.133.73.51] 524 octets ;; HEADER SECTION ;; id = 43503 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 2 ;; nscount = 5 arcount = 7 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; umich.edu. IN SOA ;; ANSWER SECTION (2 records) umich.edu. 1800 IN SOA ( adonis10-2022.umnet.umich.edu. hostmaster.umich.edu. 752051985 ;serial 1800 ;refresh 900 ;retry 2419200 ;expire 1800 ;minimum ) umich.edu. 1800 IN RRSIG ( SOA 13 2 1800 20250523150658 20250423140658 2127 umich.edu. aiR6/RVFruNIOE8CSO9DayWusObsnOY0JsaNE8uSyDy9/lniw0CkOzFBUU0mah7C3vDR2EFW0/Jb Tm3WOXFYeA== ) ;; AUTHORITY SECTION (5 records) umich.edu. 172800 IN NS dns1.itd.umich.edu. umich.edu. 172800 IN NS dns3.umich.org. umich.edu. 172800 IN NS dns2.itd.umich.edu. umich.edu. 172800 IN NS dns4.umich.org. umich.edu. 172800 IN RRSIG ( NS 13 2 172800 20250503185803 20250422094202 2127 umich.edu. td8HzUtcgxtrfuYWQTQ31AGKbe9dxvCW5kbLunZzD9C8vaAseVs8bkNdo/NVy90JmNXwWjSlbmsN IdBlVTrMaQ== ) ;; ADDITIONAL SECTION (7 records) dns2.itd.umich.edu. 1800 IN A 192.12.80.222 dns1.itd.umich.edu. 1800 IN A 192.12.80.214 dns3.umich.org. 1800 IN A 18.225.0.3 dns4.umich.org. 1800 IN A 3.133.73.51 dns2.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::12 dns1.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::2 ;; { "EDNS-VERSION": 0 }
	Query to dns3.umich.org for umich.edu/SOA
	Received 524 bytes from 18.225.0.3
	;; Response received from [18.225.0.3] 524 octets ;; HEADER SECTION ;; id = 56686 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 2 ;; nscount = 5 arcount = 7 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; umich.edu. IN SOA ;; ANSWER SECTION (2 records) umich.edu. 1800 IN SOA ( adonis10-2022.umnet.umich.edu. hostmaster.umich.edu. 752051985 ;serial 1800 ;refresh 900 ;retry 2419200 ;expire 1800 ;minimum ) umich.edu. 1800 IN RRSIG ( SOA 13 2 1800 20250523150658 20250423140658 2127 umich.edu. aiR6/RVFruNIOE8CSO9DayWusObsnOY0JsaNE8uSyDy9/lniw0CkOzFBUU0mah7C3vDR2EFW0/Jb Tm3WOXFYeA== ) ;; AUTHORITY SECTION (5 records) umich.edu. 172800 IN NS dns1.itd.umich.edu. umich.edu. 172800 IN NS dns4.umich.org. umich.edu. 172800 IN NS dns3.umich.org. umich.edu. 172800 IN NS dns2.itd.umich.edu. umich.edu. 172800 IN RRSIG ( NS 13 2 172800 20250503185803 20250422094202 2127 umich.edu. td8HzUtcgxtrfuYWQTQ31AGKbe9dxvCW5kbLunZzD9C8vaAseVs8bkNdo/NVy90JmNXwWjSlbmsN IdBlVTrMaQ== ) ;; ADDITIONAL SECTION (7 records) dns2.itd.umich.edu. 1800 IN A 192.12.80.222 dns1.itd.umich.edu. 1800 IN A 192.12.80.214 dns3.umich.org. 1800 IN A 18.225.0.3 dns4.umich.org. 1800 IN A 3.133.73.51 dns2.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::12 dns1.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::2 ;; { "EDNS-VERSION": 0 }
	Query to dns2.itd.umich.edu for umich.edu/SOA
	Received 524 bytes from 192.12.80.222
	;; Response received from [192.12.80.222] 524 octets ;; HEADER SECTION ;; id = 57832 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 2 ;; nscount = 5 arcount = 7 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; umich.edu. IN SOA ;; ANSWER SECTION (2 records) umich.edu. 1800 IN SOA ( adonis10-2022.umnet.umich.edu. hostmaster.umich.edu. 752051985 ;serial 1800 ;refresh 900 ;retry 2419200 ;expire 1800 ;minimum ) umich.edu. 1800 IN RRSIG ( SOA 13 2 1800 20250523150658 20250423140658 2127 umich.edu. aiR6/RVFruNIOE8CSO9DayWusObsnOY0JsaNE8uSyDy9/lniw0CkOzFBUU0mah7C3vDR2EFW0/Jb Tm3WOXFYeA== ) ;; AUTHORITY SECTION (5 records) umich.edu. 172800 IN NS dns3.umich.org. umich.edu. 172800 IN NS dns4.umich.org. umich.edu. 172800 IN NS dns2.itd.umich.edu. umich.edu. 172800 IN NS dns1.itd.umich.edu. umich.edu. 172800 IN RRSIG ( NS 13 2 172800 20250503185803 20250422094202 2127 umich.edu. td8HzUtcgxtrfuYWQTQ31AGKbe9dxvCW5kbLunZzD9C8vaAseVs8bkNdo/NVy90JmNXwWjSlbmsN IdBlVTrMaQ== ) ;; ADDITIONAL SECTION (7 records) dns2.itd.umich.edu. 1800 IN A 192.12.80.222 dns1.itd.umich.edu. 1800 IN A 192.12.80.214 dns3.umich.org. 1800 IN A 18.225.0.3 dns4.umich.org. 1800 IN A 3.133.73.51 dns2.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::12 dns1.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::2 ;; { "EDNS-VERSION": 0 }
	Query to dns1.itd.umich.edu for umich.edu/A
	Received 489 bytes from 192.12.80.214
	;; Response received from [192.12.80.214] 489 octets ;; HEADER SECTION ;; id = 12722 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 3 ;; nscount = 5 arcount = 7 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; umich.edu. IN A ;; ANSWER SECTION (3 records) umich.edu. 1800 IN A 172.66.0.37 umich.edu. 1800 IN A 162.159.140.37 umich.edu. 1800 IN RRSIG ( A 13 2 1800 20250503185803 20250422094202 2127 umich.edu. WwtAjmESEOlyLwWqdAMGqTqUimvtil0karSzWLwSHJ6QlE83NZp8dV/v0wOngb4MzxzfhIYLmQpq RQm1sQGO5g== ) ;; AUTHORITY SECTION (5 records) umich.edu. 172800 IN NS dns4.umich.org. umich.edu. 172800 IN NS dns1.itd.umich.edu. umich.edu. 172800 IN NS dns2.itd.umich.edu. umich.edu. 172800 IN NS dns3.umich.org. umich.edu. 172800 IN RRSIG ( NS 13 2 172800 20250503185803 20250422094202 2127 umich.edu. td8HzUtcgxtrfuYWQTQ31AGKbe9dxvCW5kbLunZzD9C8vaAseVs8bkNdo/NVy90JmNXwWjSlbmsN IdBlVTrMaQ== ) ;; ADDITIONAL SECTION (7 records) dns2.itd.umich.edu. 1800 IN A 192.12.80.222 dns1.itd.umich.edu. 1800 IN A 192.12.80.214 dns3.umich.org. 1800 IN A 18.225.0.3 dns4.umich.org. 1800 IN A 3.133.73.51 dns2.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::12 dns1.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::2 ;; { "EDNS-VERSION": 0 }
	umich.edu A RR has value 172.66.0.37
	umich.edu A RR has value 162.159.140.37
	Found 1 RRSIGs over A RRset
	`umich.edu. 1800 IN RRSIG ( A 13 2 1800 20250503185803 20250422094202 2127 umich.edu. WwtAjmESEOlyLwWqdAMGqTqUimvtil0karSzWLwSHJ6QlE83NZp8dV/v0wOngb4MzxzfhIYLmQpq RQm1sQGO5g== )`
	RRSIG=2127 and DNSKEY=2127 verifies the A RRset

umich.edu

	Query to dns2.itd.umich.edu for umich.edu/A
	Received 489 bytes from 192.12.80.222
	;; Response received from [192.12.80.222] 489 octets ;; HEADER SECTION ;; id = 23522 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 3 ;; nscount = 5 arcount = 7 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; umich.edu. IN A ;; ANSWER SECTION (3 records) umich.edu. 1800 IN A 162.159.140.37 umich.edu. 1800 IN A 172.66.0.37 umich.edu. 1800 IN RRSIG ( A 13 2 1800 20250503185803 20250422094202 2127 umich.edu. WwtAjmESEOlyLwWqdAMGqTqUimvtil0karSzWLwSHJ6QlE83NZp8dV/v0wOngb4MzxzfhIYLmQpq RQm1sQGO5g== ) ;; AUTHORITY SECTION (5 records) umich.edu. 172800 IN NS dns3.umich.org. umich.edu. 172800 IN NS dns1.itd.umich.edu. umich.edu. 172800 IN NS dns4.umich.org. umich.edu. 172800 IN NS dns2.itd.umich.edu. umich.edu. 172800 IN RRSIG ( NS 13 2 172800 20250503185803 20250422094202 2127 umich.edu. td8HzUtcgxtrfuYWQTQ31AGKbe9dxvCW5kbLunZzD9C8vaAseVs8bkNdo/NVy90JmNXwWjSlbmsN IdBlVTrMaQ== ) ;; ADDITIONAL SECTION (7 records) dns2.itd.umich.edu. 1800 IN A 192.12.80.222 dns1.itd.umich.edu. 1800 IN A 192.12.80.214 dns3.umich.org. 1800 IN A 18.225.0.3 dns4.umich.org. 1800 IN A 3.133.73.51 dns2.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::12 dns1.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::2 ;; { "EDNS-VERSION": 0 }
	dns2.itd.umich.edu is authoritative for umich.edu
	Found RRSIG signed by umich.edu zone
	Query to dns2.itd.umich.edu for umich.edu/A
	Received 489 bytes from 192.12.80.222
	;; Response received from [192.12.80.222] 489 octets ;; HEADER SECTION ;; id = 41358 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 3 ;; nscount = 5 arcount = 7 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; umich.edu. IN A ;; ANSWER SECTION (3 records) umich.edu. 1800 IN A 162.159.140.37 umich.edu. 1800 IN A 172.66.0.37 umich.edu. 1800 IN RRSIG ( A 13 2 1800 20250503185803 20250422094202 2127 umich.edu. WwtAjmESEOlyLwWqdAMGqTqUimvtil0karSzWLwSHJ6QlE83NZp8dV/v0wOngb4MzxzfhIYLmQpq RQm1sQGO5g== ) ;; AUTHORITY SECTION (5 records) umich.edu. 172800 IN NS dns2.itd.umich.edu. umich.edu. 172800 IN NS dns3.umich.org. umich.edu. 172800 IN NS dns4.umich.org. umich.edu. 172800 IN NS dns1.itd.umich.edu. umich.edu. 172800 IN RRSIG ( NS 13 2 172800 20250503185803 20250422094202 2127 umich.edu. td8HzUtcgxtrfuYWQTQ31AGKbe9dxvCW5kbLunZzD9C8vaAseVs8bkNdo/NVy90JmNXwWjSlbmsN IdBlVTrMaQ== ) ;; ADDITIONAL SECTION (7 records) dns2.itd.umich.edu. 1800 IN A 192.12.80.222 dns1.itd.umich.edu. 1800 IN A 192.12.80.214 dns3.umich.org. 1800 IN A 18.225.0.3 dns4.umich.org. 1800 IN A 3.133.73.51 dns2.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::12 dns1.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::2 ;; { "EDNS-VERSION": 0 }
	umich.edu A RR has value 162.159.140.37
	umich.edu A RR has value 172.66.0.37
	Found 1 RRSIGs over A RRset
	`umich.edu. 1800 IN RRSIG ( A 13 2 1800 20250503185803 20250422094202 2127 umich.edu. WwtAjmESEOlyLwWqdAMGqTqUimvtil0karSzWLwSHJ6QlE83NZp8dV/v0wOngb4MzxzfhIYLmQpq RQm1sQGO5g== )`
	RRSIG=2127 and DNSKEY=2127 verifies the A RRset

umich.edu

	Query to dns4.umich.org for umich.edu/A
	Received 489 bytes from 3.133.73.51
	;; Response received from [3.133.73.51] 489 octets ;; HEADER SECTION ;; id = 33403 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 3 ;; nscount = 5 arcount = 7 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; umich.edu. IN A ;; ANSWER SECTION (3 records) umich.edu. 1800 IN A 162.159.140.37 umich.edu. 1800 IN A 172.66.0.37 umich.edu. 1800 IN RRSIG ( A 13 2 1800 20250503185803 20250422094202 2127 umich.edu. WwtAjmESEOlyLwWqdAMGqTqUimvtil0karSzWLwSHJ6QlE83NZp8dV/v0wOngb4MzxzfhIYLmQpq RQm1sQGO5g== ) ;; AUTHORITY SECTION (5 records) umich.edu. 172800 IN NS dns4.umich.org. umich.edu. 172800 IN NS dns1.itd.umich.edu. umich.edu. 172800 IN NS dns3.umich.org. umich.edu. 172800 IN NS dns2.itd.umich.edu. umich.edu. 172800 IN RRSIG ( NS 13 2 172800 20250503185803 20250422094202 2127 umich.edu. td8HzUtcgxtrfuYWQTQ31AGKbe9dxvCW5kbLunZzD9C8vaAseVs8bkNdo/NVy90JmNXwWjSlbmsN IdBlVTrMaQ== ) ;; ADDITIONAL SECTION (7 records) dns2.itd.umich.edu. 1800 IN A 192.12.80.222 dns1.itd.umich.edu. 1800 IN A 192.12.80.214 dns3.umich.org. 1800 IN A 18.225.0.3 dns4.umich.org. 1800 IN A 3.133.73.51 dns2.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::12 dns1.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::2 ;; { "EDNS-VERSION": 0 }
	dns4.umich.org is authoritative for umich.edu
	Found RRSIG signed by umich.edu zone
	Query to dns4.umich.org for umich.edu/A
	Received 489 bytes from 3.133.73.51
	;; Response received from [3.133.73.51] 489 octets ;; HEADER SECTION ;; id = 965 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 3 ;; nscount = 5 arcount = 7 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; umich.edu. IN A ;; ANSWER SECTION (3 records) umich.edu. 1800 IN A 172.66.0.37 umich.edu. 1800 IN A 162.159.140.37 umich.edu. 1800 IN RRSIG ( A 13 2 1800 20250503185803 20250422094202 2127 umich.edu. WwtAjmESEOlyLwWqdAMGqTqUimvtil0karSzWLwSHJ6QlE83NZp8dV/v0wOngb4MzxzfhIYLmQpq RQm1sQGO5g== ) ;; AUTHORITY SECTION (5 records) umich.edu. 172800 IN NS dns3.umich.org. umich.edu. 172800 IN NS dns2.itd.umich.edu. umich.edu. 172800 IN NS dns4.umich.org. umich.edu. 172800 IN NS dns1.itd.umich.edu. umich.edu. 172800 IN RRSIG ( NS 13 2 172800 20250503185803 20250422094202 2127 umich.edu. td8HzUtcgxtrfuYWQTQ31AGKbe9dxvCW5kbLunZzD9C8vaAseVs8bkNdo/NVy90JmNXwWjSlbmsN IdBlVTrMaQ== ) ;; ADDITIONAL SECTION (7 records) dns2.itd.umich.edu. 1800 IN A 192.12.80.222 dns1.itd.umich.edu. 1800 IN A 192.12.80.214 dns3.umich.org. 1800 IN A 18.225.0.3 dns4.umich.org. 1800 IN A 3.133.73.51 dns2.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::12 dns1.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::2 ;; { "EDNS-VERSION": 0 }
	umich.edu A RR has value 172.66.0.37
	umich.edu A RR has value 162.159.140.37
	Found 1 RRSIGs over A RRset
	`umich.edu. 1800 IN RRSIG ( A 13 2 1800 20250503185803 20250422094202 2127 umich.edu. WwtAjmESEOlyLwWqdAMGqTqUimvtil0karSzWLwSHJ6QlE83NZp8dV/v0wOngb4MzxzfhIYLmQpq RQm1sQGO5g== )`
	RRSIG=2127 and DNSKEY=2127 verifies the A RRset

umich.edu

	Query to dns3.umich.org for umich.edu/A
	Received 489 bytes from 18.225.0.3
	;; Response received from [18.225.0.3] 489 octets ;; HEADER SECTION ;; id = 53782 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 3 ;; nscount = 5 arcount = 7 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; umich.edu. IN A ;; ANSWER SECTION (3 records) umich.edu. 1800 IN A 172.66.0.37 umich.edu. 1800 IN A 162.159.140.37 umich.edu. 1800 IN RRSIG ( A 13 2 1800 20250503185803 20250422094202 2127 umich.edu. WwtAjmESEOlyLwWqdAMGqTqUimvtil0karSzWLwSHJ6QlE83NZp8dV/v0wOngb4MzxzfhIYLmQpq RQm1sQGO5g== ) ;; AUTHORITY SECTION (5 records) umich.edu. 172800 IN NS dns3.umich.org. umich.edu. 172800 IN NS dns4.umich.org. umich.edu. 172800 IN NS dns1.itd.umich.edu. umich.edu. 172800 IN NS dns2.itd.umich.edu. umich.edu. 172800 IN RRSIG ( NS 13 2 172800 20250503185803 20250422094202 2127 umich.edu. td8HzUtcgxtrfuYWQTQ31AGKbe9dxvCW5kbLunZzD9C8vaAseVs8bkNdo/NVy90JmNXwWjSlbmsN IdBlVTrMaQ== ) ;; ADDITIONAL SECTION (7 records) dns2.itd.umich.edu. 1800 IN A 192.12.80.222 dns1.itd.umich.edu. 1800 IN A 192.12.80.214 dns3.umich.org. 1800 IN A 18.225.0.3 dns4.umich.org. 1800 IN A 3.133.73.51 dns2.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::12 dns1.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::2 ;; { "EDNS-VERSION": 0 }
	dns3.umich.org is authoritative for umich.edu
	Found RRSIG signed by umich.edu zone
	Query to dns3.umich.org for umich.edu/A
	Received 489 bytes from 18.225.0.3
	;; Response received from [18.225.0.3] 489 octets ;; HEADER SECTION ;; id = 32178 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 3 ;; nscount = 5 arcount = 7 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; umich.edu. IN A ;; ANSWER SECTION (3 records) umich.edu. 1800 IN A 162.159.140.37 umich.edu. 1800 IN A 172.66.0.37 umich.edu. 1800 IN RRSIG ( A 13 2 1800 20250503185803 20250422094202 2127 umich.edu. WwtAjmESEOlyLwWqdAMGqTqUimvtil0karSzWLwSHJ6QlE83NZp8dV/v0wOngb4MzxzfhIYLmQpq RQm1sQGO5g== ) ;; AUTHORITY SECTION (5 records) umich.edu. 172800 IN NS dns4.umich.org. umich.edu. 172800 IN NS dns2.itd.umich.edu. umich.edu. 172800 IN NS dns1.itd.umich.edu. umich.edu. 172800 IN NS dns3.umich.org. umich.edu. 172800 IN RRSIG ( NS 13 2 172800 20250503185803 20250422094202 2127 umich.edu. td8HzUtcgxtrfuYWQTQ31AGKbe9dxvCW5kbLunZzD9C8vaAseVs8bkNdo/NVy90JmNXwWjSlbmsN IdBlVTrMaQ== ) ;; ADDITIONAL SECTION (7 records) dns2.itd.umich.edu. 1800 IN A 192.12.80.222 dns1.itd.umich.edu. 1800 IN A 192.12.80.214 dns3.umich.org. 1800 IN A 18.225.0.3 dns4.umich.org. 1800 IN A 3.133.73.51 dns2.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::12 dns1.itd.umich.edu. 172800 IN AAAA 2607:f018:fffd:53::2 ;; { "EDNS-VERSION": 0 }
	umich.edu A RR has value 162.159.140.37
	umich.edu A RR has value 172.66.0.37
	Found 1 RRSIGs over A RRset
	`umich.edu. 1800 IN RRSIG ( A 13 2 1800 20250503185803 20250422094202 2127 umich.edu. WwtAjmESEOlyLwWqdAMGqTqUimvtil0karSzWLwSHJ6QlE83NZp8dV/v0wOngb4MzxzfhIYLmQpq RQm1sQGO5g== )`
	RRSIG=2127 and DNSKEY=2127 verifies the A RRset

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