DNSSEC Debugger - polytechnique.edu

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Time: 2026-09-16 20:23:51 UTC

Analyzing DNSSEC problems for polytechnique.edu

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

DS=38696/SHA-256 is now in the chain-of-trust

	Checking DS between Trust Anchor and .
	`. IN DS ( 20326 8 2 e06d44b80b8f1d39a95c0b0d7c65d08458e880409bbc683457104237c7f8ec8d )`
	`. IN DS ( 38696 8 2 683d2d0acb8c9b712a1948b27f741219298d0a450d612c483af444a4c0fb2b16 )`
	Query to m.root-servers.net for ./DNSKEY
	Received 1141 bytes from 202.12.27.33
	;; Response received from [202.12.27.33] 1141 octets ;; HEADER SECTION ;; id = 50818 ;; 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 AwEAAa96jeuknZlaeSrvyAJj6ZHv28hhOKkx3rLGXVaC6rXTsDc449/cidltpkyGwCJNnOAlFNKF 2jBosZBU5eeHspaQWOmOElZsjICMQMC3aeHbGiShvZsx4wMYSjH8e7Vrhbu6irwCzVBApESjbUdp WWmEnhathWu1jo+siFUiRAAxm9qyJNg/wOZqqzL/dL/q8PkcRU5oUKEpUge71M3ej2/7CPqpdVwu MoTvoB+ZOT4YeGyxMvHmbrxlFzGOHOijtzN+u1TQNatX2XBuzZNQ1K+s2CXkPIZo7s6JgZyvaBev YtxPvYLw4z9mR7K2vaF18UYH9Z9GNUUeayffKC73PYc= ) ; keytag 38696 . 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 AwEAAeCYD6Z7WWKVLeuWgowKP+3g+Gs1cnLKq7a3CaQxQpv8bfuFVI0WnG33qaSH/Mw9IBgifrdz f4XY/DQLnyBJ9MfaOyAWuEaEmYJ+GQPiwVVfstGwSA1McfFJUttTgq2Huu74KARhtA8wPo/N3Xcy YQtNhz+qCM5NBb3ecx/naw6sYab9LxS6f2cU0q03++BP5Ks0Uef8WJCa/1izCYE+vMkwoltV+tEN a3hpXiZ7jle/xdgaZrPi5ZGmyLVI34g1XVYrNlsCCTmNvFQIfzW5STFQFsQpizczyFn9r3LzSxxP CNwdlCG84bER0BmdwqbF6Tanv+FxMOavrahkj4wIy5k= ) ; keytag 57780 . 172800 IN RRSIG ( DNSKEY 8 0 172800 20260930000000 20260909000000 20326 . oYSvB9Md+++cwEvRgKH+7O3u5mSWT8tgQ6zxO+A22wU/xfavUVWD6q0A4Tpr1ez840UhnuYEZll3 AoYA+Gv06zGip99UY71evaZ/cSG04Ipz2t6erwiKMbMVQDf4Cx25g28PTJjGuFG62BQxN9GOF8aT F+4KgY3/6kAoLiGVtALiW9d+Pa5LvbLicTif3qvus0u6c63BJ22rK8RXEKaXFD93TlyLprBR80Zv 4smHeqO5hVuVtwxq7/daXiv8laEVQfs9Joq/yjPxz7vaFbaJn00/LgpbpLG6r+y2GteVTLrtvT3v FrxfNH9b9NeYogbF7eUFujmm9TukkkjVxp5tKg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 3 DNSKEY records for .
	`. 172800 IN DNSKEY ( 257 3 8 AwEAAa96jeuknZlaeSrvyAJj6ZHv28hhOKkx3rLGXVaC6rXTsDc449/cidltpkyGwCJNnOAlFNKF 2jBosZBU5eeHspaQWOmOElZsjICMQMC3aeHbGiShvZsx4wMYSjH8e7Vrhbu6irwCzVBApESjbUdp WWmEnhathWu1jo+siFUiRAAxm9qyJNg/wOZqqzL/dL/q8PkcRU5oUKEpUge71M3ej2/7CPqpdVwu MoTvoB+ZOT4YeGyxMvHmbrxlFzGOHOijtzN+u1TQNatX2XBuzZNQ1K+s2CXkPIZo7s6JgZyvaBev YtxPvYLw4z9mR7K2vaF18UYH9Z9GNUUeayffKC73PYc= ) ; keytag 38696`
	`. 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 AwEAAeCYD6Z7WWKVLeuWgowKP+3g+Gs1cnLKq7a3CaQxQpv8bfuFVI0WnG33qaSH/Mw9IBgifrdz f4XY/DQLnyBJ9MfaOyAWuEaEmYJ+GQPiwVVfstGwSA1McfFJUttTgq2Huu74KARhtA8wPo/N3Xcy YQtNhz+qCM5NBb3ecx/naw6sYab9LxS6f2cU0q03++BP5Ks0Uef8WJCa/1izCYE+vMkwoltV+tEN a3hpXiZ7jle/xdgaZrPi5ZGmyLVI34g1XVYrNlsCCTmNvFQIfzW5STFQFsQpizczyFn9r3LzSxxP CNwdlCG84bER0BmdwqbF6Tanv+FxMOavrahkj4wIy5k= ) ; keytag 57780`
	DNSKEY=38696/SEP is now in the chain-of-trust
	DS=38696/SHA-256 verifies DNSKEY=38696/SEP
	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 20260930000000 20260909000000 20326 . oYSvB9Md+++cwEvRgKH+7O3u5mSWT8tgQ6zxO+A22wU/xfavUVWD6q0A4Tpr1ez840UhnuYEZll3 AoYA+Gv06zGip99UY71evaZ/cSG04Ipz2t6erwiKMbMVQDf4Cx25g28PTJjGuFG62BQxN9GOF8aT F+4KgY3/6kAoLiGVtALiW9d+Pa5LvbLicTif3qvus0u6c63BJ22rK8RXEKaXFD93TlyLprBR80Zv 4smHeqO5hVuVtwxq7/daXiv8laEVQfs9Joq/yjPxz7vaFbaJn00/LgpbpLG6r+y2GteVTLrtvT3v FrxfNH9b9NeYogbF7eUFujmm9TukkkjVxp5tKg== )`
	RRSIG=20326 and DNSKEY=20326/SEP verifies the DNSKEY RRset
	DNSKEY=57780 is now in the chain-of-trust
	Query to m.root-servers.net for polytechnique.edu/A
	Received 1176 bytes from 202.12.27.33
	;; Response received from [202.12.27.33] 1176 octets ;; HEADER SECTION ;; id = 62694 ;; 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) ;; polytechnique.edu. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (15 records) edu. 172800 IN NS b.edu-servers.net. edu. 172800 IN NS j.edu-servers.net. edu. 172800 IN NS a.edu-servers.net. edu. 172800 IN NS l.edu-servers.net. edu. 172800 IN NS c.edu-servers.net. edu. 172800 IN NS e.edu-servers.net. edu. 172800 IN NS d.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 m.edu-servers.net. edu. 172800 IN NS i.edu-servers.net. edu. 172800 IN NS k.edu-servers.net. edu. 86400 IN DS ( 35663 13 2 a2e1614291831a4746b5ac52b4b345357687271e85353082741f1cf3d06a4c1d ) edu. 86400 IN RRSIG ( DS 8 1 86400 20260929170000 20260916160000 57780 . Z9RXjVbVz4c+7YcNcCifUftOcFthNPGdbV5qLEKwfERYcsLWO5aDEkcF/Var/0Js/qXvqZgWjDQM 1mDQuNC2beyDyDgDnji94K9rFt4wgTOiZjIen7hdhARi1RiU4giEmzoADbmA0GCCmQ4Qn670CFQn mdNYuHN6ZU3f4jbCbaFeCJ3BaKcSZdb6yuP4mSzDqcmRFLANJb4FIbgUSvsos2CRmOemw4F/o6fJ y5wmi2vdtmmFdAAgnfhl2ZKqorIVPGD5Bqr/bG8erRUvLn3On+0f/ck4mF9OrZ4hyDYMAUhITxk4 xte6jjbyzRbfDAT5jzkYK12AJ0uKUGzL9jwWIQ== ) ;; ADDITIONAL SECTION (27 records) m.edu-servers.net. 172800 IN A 192.55.83.30 l.edu-servers.net. 172800 IN A 192.41.162.30 k.edu-servers.net. 172800 IN A 192.52.178.30 j.edu-servers.net. 172800 IN A 192.48.79.30 i.edu-servers.net. 172800 IN A 192.43.172.30 h.edu-servers.net. 172800 IN A 192.54.112.30 g.edu-servers.net. 172800 IN A 192.42.93.30 f.edu-servers.net. 172800 IN A 192.35.51.30 e.edu-servers.net. 172800 IN A 192.12.94.30 d.edu-servers.net. 172800 IN A 192.31.80.30 c.edu-servers.net. 172800 IN A 192.26.92.30 b.edu-servers.net. 172800 IN A 192.33.14.30 a.edu-servers.net. 172800 IN A 192.5.6.30 m.edu-servers.net. 172800 IN AAAA 2001:501:b1f9::30 l.edu-servers.net. 172800 IN AAAA 2001:500:d937::30 k.edu-servers.net. 172800 IN AAAA 2001:503:d2d::30 j.edu-servers.net. 172800 IN AAAA 2001:502:7094::30 i.edu-servers.net. 172800 IN AAAA 2001:503:39c1::30 h.edu-servers.net. 172800 IN AAAA 2001:502:8cc::30 g.edu-servers.net. 172800 IN AAAA 2001:503:eea3::30 f.edu-servers.net. 172800 IN AAAA 2001:503:d414::30 e.edu-servers.net. 172800 IN AAAA 2001:502:1ca1::30 d.edu-servers.net. 172800 IN AAAA 2001:500:856e::30 c.edu-servers.net. 172800 IN AAAA 2001:503:83eb::30 b.edu-servers.net. 172800 IN AAAA 2001:503:231d::2:30 a.edu-servers.net. 172800 IN AAAA 2001:503:a83e::2:30 ;; { "EDNS-VERSION": 0 }
	Query to g.root-servers.net for edu/DNSKEY
	Received 1162 bytes from 192.112.36.4
	;; Response received from [192.112.36.4] 1162 octets ;; HEADER SECTION ;; id = 40380 ;; 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) ;; edu. IN DNSKEY ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (15 records) edu. 172800 IN NS b.edu-servers.net. edu. 172800 IN NS e.edu-servers.net. edu. 172800 IN NS f.edu-servers.net. edu. 172800 IN NS i.edu-servers.net. edu. 172800 IN NS a.edu-servers.net. edu. 172800 IN NS m.edu-servers.net. edu. 172800 IN NS l.edu-servers.net. edu. 172800 IN NS k.edu-servers.net. edu. 172800 IN NS d.edu-servers.net. edu. 172800 IN NS c.edu-servers.net. edu. 172800 IN NS h.edu-servers.net. edu. 172800 IN NS j.edu-servers.net. edu. 172800 IN NS g.edu-servers.net. edu. 86400 IN DS ( 35663 13 2 a2e1614291831a4746b5ac52b4b345357687271e85353082741f1cf3d06a4c1d ) edu. 86400 IN RRSIG ( DS 8 1 86400 20260929170000 20260916160000 57780 . Z9RXjVbVz4c+7YcNcCifUftOcFthNPGdbV5qLEKwfERYcsLWO5aDEkcF/Var/0Js/qXvqZgWjDQM 1mDQuNC2beyDyDgDnji94K9rFt4wgTOiZjIen7hdhARi1RiU4giEmzoADbmA0GCCmQ4Qn670CFQn mdNYuHN6ZU3f4jbCbaFeCJ3BaKcSZdb6yuP4mSzDqcmRFLANJb4FIbgUSvsos2CRmOemw4F/o6fJ y5wmi2vdtmmFdAAgnfhl2ZKqorIVPGD5Bqr/bG8erRUvLn3On+0f/ck4mF9OrZ4hyDYMAUhITxk4 xte6jjbyzRbfDAT5jzkYK12AJ0uKUGzL9jwWIQ== ) ;; ADDITIONAL SECTION (27 records) m.edu-servers.net. 172800 IN A 192.55.83.30 l.edu-servers.net. 172800 IN A 192.41.162.30 k.edu-servers.net. 172800 IN A 192.52.178.30 j.edu-servers.net. 172800 IN A 192.48.79.30 i.edu-servers.net. 172800 IN A 192.43.172.30 h.edu-servers.net. 172800 IN A 192.54.112.30 g.edu-servers.net. 172800 IN A 192.42.93.30 f.edu-servers.net. 172800 IN A 192.35.51.30 e.edu-servers.net. 172800 IN A 192.12.94.30 d.edu-servers.net. 172800 IN A 192.31.80.30 c.edu-servers.net. 172800 IN A 192.26.92.30 b.edu-servers.net. 172800 IN A 192.33.14.30 a.edu-servers.net. 172800 IN A 192.5.6.30 m.edu-servers.net. 172800 IN AAAA 2001:501:b1f9::30 l.edu-servers.net. 172800 IN AAAA 2001:500:d937::30 k.edu-servers.net. 172800 IN AAAA 2001:503:d2d::30 j.edu-servers.net. 172800 IN AAAA 2001:502:7094::30 i.edu-servers.net. 172800 IN AAAA 2001:503:39c1::30 h.edu-servers.net. 172800 IN AAAA 2001:502:8cc::30 g.edu-servers.net. 172800 IN AAAA 2001:503:eea3::30 f.edu-servers.net. 172800 IN AAAA 2001:503:d414::30 e.edu-servers.net. 172800 IN AAAA 2001:502:1ca1::30 d.edu-servers.net. 172800 IN AAAA 2001:500:856e::30 c.edu-servers.net. 172800 IN AAAA 2001:503:83eb::30 b.edu-servers.net. 172800 IN AAAA 2001:503:231d::2:30 a.edu-servers.net. 172800 IN AAAA 2001:503:a83e::2:30 ;; { "EDNS-VERSION": 0 }
	Found child zone edu

edu

	Checking DS between . and edu
	Query to j.root-servers.net for edu/DS
	Received 367 bytes from 192.58.128.30
	;; Response received from [192.58.128.30] 367 octets ;; HEADER SECTION ;; id = 35543 ;; 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": 1472, ;; "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 20260929170000 20260916160000 57780 . Z9RXjVbVz4c+7YcNcCifUftOcFthNPGdbV5qLEKwfERYcsLWO5aDEkcF/Var/0Js/qXvqZgWjDQM 1mDQuNC2beyDyDgDnji94K9rFt4wgTOiZjIen7hdhARi1RiU4giEmzoADbmA0GCCmQ4Qn670CFQn mdNYuHN6ZU3f4jbCbaFeCJ3BaKcSZdb6yuP4mSzDqcmRFLANJb4FIbgUSvsos2CRmOemw4F/o6fJ y5wmi2vdtmmFdAAgnfhl2ZKqorIVPGD5Bqr/bG8erRUvLn3On+0f/ck4mF9OrZ4hyDYMAUhITxk4 xte6jjbyzRbfDAT5jzkYK12AJ0uKUGzL9jwWIQ== ) ;; 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 20260929170000 20260916160000 57780 . Z9RXjVbVz4c+7YcNcCifUftOcFthNPGdbV5qLEKwfERYcsLWO5aDEkcF/Var/0Js/qXvqZgWjDQM 1mDQuNC2beyDyDgDnji94K9rFt4wgTOiZjIen7hdhARi1RiU4giEmzoADbmA0GCCmQ4Qn670CFQn mdNYuHN6ZU3f4jbCbaFeCJ3BaKcSZdb6yuP4mSzDqcmRFLANJb4FIbgUSvsos2CRmOemw4F/o6fJ y5wmi2vdtmmFdAAgnfhl2ZKqorIVPGD5Bqr/bG8erRUvLn3On+0f/ck4mF9OrZ4hyDYMAUhITxk4 xte6jjbyzRbfDAT5jzkYK12AJ0uKUGzL9jwWIQ== )`
	RRSIG=57780 and DNSKEY=57780 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 j.edu-servers.net for edu/DNSKEY
	Received 291 bytes from 192.48.79.30
	;; Response received from [192.48.79.30] 291 octets ;; HEADER SECTION ;; id = 52629 ;; 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 ( 256 3 13 /wryn57986cSrM6e2SVDL1jtnHPoPqjPRw0z/jlp5BJ6PNc5Jt0Y/Jw3eWBbu6ZJCry4ooX5uE6U 1swz4VmIRA== ) ; keytag 6705 edu. 86400 IN DNSKEY ( 257 3 13 vqk4cwmCpZkXat25PaOVt3RPYDOmCr8B4D1IynrqSqzs+BeCYI6pnBNRUD9BgfqbxZHyfyDz6vbv 8KQaT7maRw== ) ; keytag 35663 edu. 86400 IN RRSIG ( DNSKEY 13 1 86400 20260927151114 20260912150614 35663 edu. 6F1ZUDg7r1PtHrCQykYINMI8SGc3ve71aj269hx8b5upYcAnoJNAGGLXWah8/dD0bno5JQUYAI4l +iTu9V2eFA== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 2 DNSKEY records for edu
	`edu. 86400 IN DNSKEY ( 256 3 13 /wryn57986cSrM6e2SVDL1jtnHPoPqjPRw0z/jlp5BJ6PNc5Jt0Y/Jw3eWBbu6ZJCry4ooX5uE6U 1swz4VmIRA== ) ; keytag 6705`
	`edu. 86400 IN DNSKEY ( 257 3 13 vqk4cwmCpZkXat25PaOVt3RPYDOmCr8B4D1IynrqSqzs+BeCYI6pnBNRUD9BgfqbxZHyfyDz6vbv 8KQaT7maRw== ) ; keytag 35663`
	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 20260927151114 20260912150614 35663 edu. 6F1ZUDg7r1PtHrCQykYINMI8SGc3ve71aj269hx8b5upYcAnoJNAGGLXWah8/dD0bno5JQUYAI4l +iTu9V2eFA== )`
	RRSIG=35663 and DNSKEY=35663/SEP verifies the DNSKEY RRset
	DNSKEY=6705 is now in the chain-of-trust
	Query to a.edu-servers.net for polytechnique.edu/A
	Received 324 bytes from 192.5.6.30
	;; Response received from [192.5.6.30] 324 octets ;; HEADER SECTION ;; id = 8418 ;; 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 = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; polytechnique.edu. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (7 records) polytechnique.edu. 172800 IN NS milou.polytechnique.fr. polytechnique.edu. 172800 IN NS rackham.polytechnique.fr. polytechnique.edu. 172800 IN NS picaros.polytechnique.fr. polytechnique.edu. 172800 IN NS nsb.perf1.com. polytechnique.edu. 172800 IN NS nsa.perf1.fr. polytechnique.edu. 86400 IN DS ( 27495 13 2 f72a748d743c04d93dd7f679148cc9dda8baaae735d4eec7efe248701e02708d ) polytechnique.edu. 86400 IN RRSIG ( DS 13 2 86400 20260922033831 20260915022831 6705 edu. Cm+UtEhsdC1+vScm6T6vnKeKLfgwNEFy+WBfAy6MjQjWAm1haQLtkDxQO+9p05hDmnFcEYMmN2eN Jkbo17pWUA== ) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Query to c.edu-servers.net for polytechnique.edu/DNSKEY
	Received 324 bytes from 192.26.92.30
	;; Response received from [192.26.92.30] 324 octets ;; HEADER SECTION ;; id = 61750 ;; 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 = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; polytechnique.edu. IN DNSKEY ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (7 records) polytechnique.edu. 172800 IN NS milou.polytechnique.fr. polytechnique.edu. 172800 IN NS rackham.polytechnique.fr. polytechnique.edu. 172800 IN NS picaros.polytechnique.fr. polytechnique.edu. 172800 IN NS nsb.perf1.com. polytechnique.edu. 172800 IN NS nsa.perf1.fr. polytechnique.edu. 86400 IN DS ( 27495 13 2 f72a748d743c04d93dd7f679148cc9dda8baaae735d4eec7efe248701e02708d ) polytechnique.edu. 86400 IN RRSIG ( DS 13 2 86400 20260922033831 20260915022831 6705 edu. Cm+UtEhsdC1+vScm6T6vnKeKLfgwNEFy+WBfAy6MjQjWAm1haQLtkDxQO+9p05hDmnFcEYMmN2eN Jkbo17pWUA== ) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found child zone polytechnique.edu

polytechnique.edu

	Checking DS between edu and polytechnique.edu
	Query to k.edu-servers.net for polytechnique.edu/DS
	Received 1087 bytes from 192.52.178.30
	;; Response received from [192.52.178.30] 1087 octets ;; HEADER SECTION ;; id = 14739 ;; 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 = 14 arcount = 27 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; polytechnique.edu. IN DS ;; ANSWER SECTION (2 records) polytechnique.edu. 86400 IN DS ( 27495 13 2 f72a748d743c04d93dd7f679148cc9dda8baaae735d4eec7efe248701e02708d ) polytechnique.edu. 86400 IN RRSIG ( DS 13 2 86400 20260922033831 20260915022831 6705 edu. Cm+UtEhsdC1+vScm6T6vnKeKLfgwNEFy+WBfAy6MjQjWAm1haQLtkDxQO+9p05hDmnFcEYMmN2eN Jkbo17pWUA== ) ;; AUTHORITY SECTION (14 records) edu. 172800 IN NS d.edu-servers.net. edu. 172800 IN NS g.edu-servers.net. edu. 172800 IN NS j.edu-servers.net. edu. 172800 IN NS k.edu-servers.net. edu. 172800 IN NS i.edu-servers.net. edu. 172800 IN NS l.edu-servers.net. edu. 172800 IN NS a.edu-servers.net. edu. 172800 IN NS m.edu-servers.net. edu. 172800 IN NS c.edu-servers.net. edu. 172800 IN NS e.edu-servers.net. edu. 172800 IN NS h.edu-servers.net. edu. 172800 IN NS f.edu-servers.net. edu. 172800 IN NS b.edu-servers.net. edu. 172800 IN RRSIG ( NS 13 1 172800 20260920033848 20260913022848 6705 edu. nbhlqvb8wKmretHwq33xv/3BJ0whAygP3UPYDwYmxhFjFXprSHc38daCRPLlGtac9QwWBGhXSVi5 /2u7bLFj2g== ) ;; ADDITIONAL SECTION (27 records) d.edu-servers.net. 172800 IN A 192.31.80.30 d.edu-servers.net. 172800 IN AAAA 2001:500:856e::30 g.edu-servers.net. 172800 IN A 192.42.93.30 g.edu-servers.net. 172800 IN AAAA 2001:503:eea3::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 i.edu-servers.net. 172800 IN A 192.43.172.30 i.edu-servers.net. 172800 IN AAAA 2001:503:39c1::30 l.edu-servers.net. 172800 IN A 192.41.162.30 l.edu-servers.net. 172800 IN AAAA 2001:500:d937::30 a.edu-servers.net. 172800 IN A 192.5.6.30 a.edu-servers.net. 172800 IN AAAA 2001:503:a83e::2:30 m.edu-servers.net. 172800 IN A 192.55.83.30 m.edu-servers.net. 172800 IN AAAA 2001:501:b1f9::30 c.edu-servers.net. 172800 IN A 192.26.92.30 c.edu-servers.net. 172800 IN AAAA 2001:503:83eb::30 e.edu-servers.net. 172800 IN A 192.12.94.30 e.edu-servers.net. 172800 IN AAAA 2001:502:1ca1::30 h.edu-servers.net. 172800 IN A 192.54.112.30 h.edu-servers.net. 172800 IN AAAA 2001:502:8cc::30 f.edu-servers.net. 172800 IN A 192.35.51.30 f.edu-servers.net. 172800 IN AAAA 2001:503:d414::30 b.edu-servers.net. 172800 IN A 192.33.14.30 b.edu-servers.net. 172800 IN AAAA 2001:503:231d::2:30 ;; { "EDNS-VERSION": 0 }
	Found 1 DS records for polytechnique.edu in the edu zone
	DS=27495/SHA-256 has algorithm ECDSAP256SHA256
	Found 1 RRSIGs over DS RRset
	`polytechnique.edu. 86400 IN RRSIG ( DS 13 2 86400 20260922033831 20260915022831 6705 edu. Cm+UtEhsdC1+vScm6T6vnKeKLfgwNEFy+WBfAy6MjQjWAm1haQLtkDxQO+9p05hDmnFcEYMmN2eN Jkbo17pWUA== )`
	RRSIG=6705 and DNSKEY=6705 verifies the DS RRset
	DS=27495/SHA-256 is now in the chain-of-trust
	`polytechnique.edu. 86400 IN DS ( 27495 13 2 f72a748d743c04d93dd7f679148cc9dda8baaae735d4eec7efe248701e02708d )`
	Query to milou.polytechnique.fr for polytechnique.edu/DNSKEY
	Received 319 bytes from 129.104.30.41
	;; Response received from [129.104.30.41] 319 octets ;; HEADER SECTION ;; id = 21215 ;; 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": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; polytechnique.edu. IN DNSKEY ;; ANSWER SECTION (3 records) polytechnique.edu. 3600 IN DNSKEY ( 257 3 13 1h8Ct06C3V8exoT73yBLWaH2vSLu7111TQKyFo8y1PvYRhC69M+/8ZikO/ndkpJXADZjbn9KCj1P Gqe0RmJ49g== ) ; keytag 27495 polytechnique.edu. 3600 IN DNSKEY ( 256 3 13 fhYE1qoCWPxQpctGopU0lHGujMHl58Ng/z08FVKqWAiNXN2552JMMWoX5c5u6yIjnqzOtZbC1uqU Io4qdn5oLg== ) ; keytag 26230 polytechnique.edu. 3600 IN RRSIG ( DNSKEY 13 2 3600 20260930155717 20260916145717 27495 polytechnique.edu. 0acfuaM3NFLiQtlOMvt2oDbLnlkZTe0iZfKBMw7v2vwQcfwpWbcsvJDWyJCoDW18zGg4u7oeuGNm LSmASw9gCQ== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 2 DNSKEY records for polytechnique.edu
	`polytechnique.edu. 3600 IN DNSKEY ( 257 3 13 1h8Ct06C3V8exoT73yBLWaH2vSLu7111TQKyFo8y1PvYRhC69M+/8ZikO/ndkpJXADZjbn9KCj1P Gqe0RmJ49g== ) ; keytag 27495`
	`polytechnique.edu. 3600 IN DNSKEY ( 256 3 13 fhYE1qoCWPxQpctGopU0lHGujMHl58Ng/z08FVKqWAiNXN2552JMMWoX5c5u6yIjnqzOtZbC1uqU Io4qdn5oLg== ) ; keytag 26230`
	DNSKEY=27495/SEP is now in the chain-of-trust
	DS=27495/SHA-256 verifies DNSKEY=27495/SEP
	Found 1 RRSIGs over DNSKEY RRset
	`polytechnique.edu. 3600 IN RRSIG ( DNSKEY 13 2 3600 20260930155717 20260916145717 27495 polytechnique.edu. 0acfuaM3NFLiQtlOMvt2oDbLnlkZTe0iZfKBMw7v2vwQcfwpWbcsvJDWyJCoDW18zGg4u7oeuGNm LSmASw9gCQ== )`
	RRSIG=27495 and DNSKEY=27495/SEP verifies the DNSKEY RRset
	DNSKEY=26230 is now in the chain-of-trust
	Query to nsa.perf1.fr for polytechnique.edu/A
	Received 175 bytes from 81.92.94.100
	;; Response received from [81.92.94.100] 175 octets ;; HEADER SECTION ;; id = 5341 ;; 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) ;; polytechnique.edu. IN A ;; ANSWER SECTION (2 records) polytechnique.edu. 3600 IN A 129.104.30.29 polytechnique.edu. 3600 IN RRSIG ( A 13 2 3600 20260930102803 20260916100136 26230 polytechnique.edu. mIK3Dyt8g02KLldQsBjijfPmJI0uZeoHvNBVMX+lMfMsn3096el4OMx489FJF4/GyYG4T/8L2ZC5 EE9Ng2qybw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	nsa.perf1.fr is authoritative for polytechnique.edu
	Found RRSIG signed by polytechnique.edu zone
	Query to rackham.polytechnique.fr for polytechnique.edu/SOA
	Received 228 bytes from 129.104.32.41
	;; Response received from [129.104.32.41] 228 octets ;; HEADER SECTION ;; id = 4840 ;; 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) ;; polytechnique.edu. IN SOA ;; ANSWER SECTION (2 records) polytechnique.edu. 3600 IN SOA ( milou.polytechnique.fr. hostmaster.polytechnique.fr. 2026071230 ;serial 86400 ;refresh 21600 ;retry 1209600 ;expire 3600 ;minimum ) polytechnique.edu. 3600 IN RRSIG ( SOA 13 2 3600 20260930155717 20260916145717 26230 polytechnique.edu. +hmvYbE7bDeJTfn/HEKhvpf8G6e0dEXDapgsaKzvkfq2PChrEBO2gL2orkgzO5B7VqW9khyl3WPG CNfupmeIGw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Query to milou.polytechnique.fr for polytechnique.edu/SOA
	Received 228 bytes from 129.104.30.41
	;; Response received from [129.104.30.41] 228 octets ;; HEADER SECTION ;; id = 32930 ;; 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) ;; polytechnique.edu. IN SOA ;; ANSWER SECTION (2 records) polytechnique.edu. 3600 IN SOA ( milou.polytechnique.fr. hostmaster.polytechnique.fr. 2026071230 ;serial 86400 ;refresh 21600 ;retry 1209600 ;expire 3600 ;minimum ) polytechnique.edu. 3600 IN RRSIG ( SOA 13 2 3600 20260930155717 20260916145717 26230 polytechnique.edu. +hmvYbE7bDeJTfn/HEKhvpf8G6e0dEXDapgsaKzvkfq2PChrEBO2gL2orkgzO5B7VqW9khyl3WPG CNfupmeIGw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Query to picaros.polytechnique.fr for polytechnique.edu/SOA
	Received 228 bytes from 129.104.7.41
	;; Response received from [129.104.7.41] 228 octets ;; HEADER SECTION ;; id = 54232 ;; 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) ;; polytechnique.edu. IN SOA ;; ANSWER SECTION (2 records) polytechnique.edu. 3600 IN SOA ( milou.polytechnique.fr. hostmaster.polytechnique.fr. 2026071230 ;serial 86400 ;refresh 21600 ;retry 1209600 ;expire 3600 ;minimum ) polytechnique.edu. 3600 IN RRSIG ( SOA 13 2 3600 20260930155717 20260916145717 26230 polytechnique.edu. +hmvYbE7bDeJTfn/HEKhvpf8G6e0dEXDapgsaKzvkfq2PChrEBO2gL2orkgzO5B7VqW9khyl3WPG CNfupmeIGw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Query to nsb.perf1.com for polytechnique.edu/SOA
	Received 228 bytes from 81.92.95.100
	;; Response received from [81.92.95.100] 228 octets ;; HEADER SECTION ;; id = 17316 ;; 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) ;; polytechnique.edu. IN SOA ;; ANSWER SECTION (2 records) polytechnique.edu. 3600 IN SOA ( milou.polytechnique.fr. hostmaster.polytechnique.fr. 2026071230 ;serial 86400 ;refresh 21600 ;retry 1209600 ;expire 3600 ;minimum ) polytechnique.edu. 3600 IN RRSIG ( SOA 13 2 3600 20260930155717 20260916145717 26230 polytechnique.edu. +hmvYbE7bDeJTfn/HEKhvpf8G6e0dEXDapgsaKzvkfq2PChrEBO2gL2orkgzO5B7VqW9khyl3WPG CNfupmeIGw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Query to nsa.perf1.fr for polytechnique.edu/A
	polytechnique.edu A RR has value 129.104.30.29
	Found 1 RRSIGs over A RRset
	`polytechnique.edu. 3600 IN RRSIG ( A 13 2 3600 20260930102803 20260916100136 26230 polytechnique.edu. mIK3Dyt8g02KLldQsBjijfPmJI0uZeoHvNBVMX+lMfMsn3096el4OMx489FJF4/GyYG4T/8L2ZC5 EE9Ng2qybw== )`
	RRSIG=26230 and DNSKEY=26230 verifies the A RRset

polytechnique.edu

	Query to picaros.polytechnique.fr for polytechnique.edu/A
	Received 175 bytes from 129.104.7.41
	;; Response received from [129.104.7.41] 175 octets ;; HEADER SECTION ;; id = 28011 ;; 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) ;; polytechnique.edu. IN A ;; ANSWER SECTION (2 records) polytechnique.edu. 3600 IN A 129.104.30.29 polytechnique.edu. 3600 IN RRSIG ( A 13 2 3600 20260930102803 20260916100136 26230 polytechnique.edu. mIK3Dyt8g02KLldQsBjijfPmJI0uZeoHvNBVMX+lMfMsn3096el4OMx489FJF4/GyYG4T/8L2ZC5 EE9Ng2qybw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	picaros.polytechnique.fr is authoritative for polytechnique.edu
	Found RRSIG signed by polytechnique.edu zone
	Query to picaros.polytechnique.fr for polytechnique.edu/A
	polytechnique.edu A RR has value 129.104.30.29
	Found 1 RRSIGs over A RRset
	`polytechnique.edu. 3600 IN RRSIG ( A 13 2 3600 20260930102803 20260916100136 26230 polytechnique.edu. mIK3Dyt8g02KLldQsBjijfPmJI0uZeoHvNBVMX+lMfMsn3096el4OMx489FJF4/GyYG4T/8L2ZC5 EE9Ng2qybw== )`
	RRSIG=26230 and DNSKEY=26230 verifies the A RRset

polytechnique.edu

	Query to milou.polytechnique.fr for polytechnique.edu/A
	Received 175 bytes from 129.104.30.41
	;; Response received from [129.104.30.41] 175 octets ;; HEADER SECTION ;; id = 15602 ;; 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) ;; polytechnique.edu. IN A ;; ANSWER SECTION (2 records) polytechnique.edu. 3600 IN A 129.104.30.29 polytechnique.edu. 3600 IN RRSIG ( A 13 2 3600 20260930102803 20260916100136 26230 polytechnique.edu. mIK3Dyt8g02KLldQsBjijfPmJI0uZeoHvNBVMX+lMfMsn3096el4OMx489FJF4/GyYG4T/8L2ZC5 EE9Ng2qybw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	milou.polytechnique.fr is authoritative for polytechnique.edu
	Found RRSIG signed by polytechnique.edu zone
	Query to milou.polytechnique.fr for polytechnique.edu/A
	polytechnique.edu A RR has value 129.104.30.29
	Found 1 RRSIGs over A RRset
	`polytechnique.edu. 3600 IN RRSIG ( A 13 2 3600 20260930102803 20260916100136 26230 polytechnique.edu. mIK3Dyt8g02KLldQsBjijfPmJI0uZeoHvNBVMX+lMfMsn3096el4OMx489FJF4/GyYG4T/8L2ZC5 EE9Ng2qybw== )`
	RRSIG=26230 and DNSKEY=26230 verifies the A RRset

polytechnique.edu

	Query to nsb.perf1.com for polytechnique.edu/A
	Received 175 bytes from 81.92.95.100
	;; Response received from [81.92.95.100] 175 octets ;; HEADER SECTION ;; id = 6186 ;; 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) ;; polytechnique.edu. IN A ;; ANSWER SECTION (2 records) polytechnique.edu. 3600 IN A 129.104.30.29 polytechnique.edu. 3600 IN RRSIG ( A 13 2 3600 20260930102803 20260916100136 26230 polytechnique.edu. mIK3Dyt8g02KLldQsBjijfPmJI0uZeoHvNBVMX+lMfMsn3096el4OMx489FJF4/GyYG4T/8L2ZC5 EE9Ng2qybw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	nsb.perf1.com is authoritative for polytechnique.edu
	Found RRSIG signed by polytechnique.edu zone
	Query to nsb.perf1.com for polytechnique.edu/A
	polytechnique.edu A RR has value 129.104.30.29
	Found 1 RRSIGs over A RRset
	`polytechnique.edu. 3600 IN RRSIG ( A 13 2 3600 20260930102803 20260916100136 26230 polytechnique.edu. mIK3Dyt8g02KLldQsBjijfPmJI0uZeoHvNBVMX+lMfMsn3096el4OMx489FJF4/GyYG4T/8L2ZC5 EE9Ng2qybw== )`
	RRSIG=26230 and DNSKEY=26230 verifies the A RRset

polytechnique.edu

	Query to rackham.polytechnique.fr for polytechnique.edu/A
	Received 175 bytes from 129.104.32.41
	;; Response received from [129.104.32.41] 175 octets ;; HEADER SECTION ;; id = 2455 ;; 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) ;; polytechnique.edu. IN A ;; ANSWER SECTION (2 records) polytechnique.edu. 3600 IN A 129.104.30.29 polytechnique.edu. 3600 IN RRSIG ( A 13 2 3600 20260930102803 20260916100136 26230 polytechnique.edu. mIK3Dyt8g02KLldQsBjijfPmJI0uZeoHvNBVMX+lMfMsn3096el4OMx489FJF4/GyYG4T/8L2ZC5 EE9Ng2qybw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	rackham.polytechnique.fr is authoritative for polytechnique.edu
	Found RRSIG signed by polytechnique.edu zone
	Query to rackham.polytechnique.fr for polytechnique.edu/A
	polytechnique.edu A RR has value 129.104.30.29
	Found 1 RRSIGs over A RRset
	`polytechnique.edu. 3600 IN RRSIG ( A 13 2 3600 20260930102803 20260916100136 26230 polytechnique.edu. mIK3Dyt8g02KLldQsBjijfPmJI0uZeoHvNBVMX+lMfMsn3096el4OMx489FJF4/GyYG4T/8L2ZC5 EE9Ng2qybw== )`
	RRSIG=26230 and DNSKEY=26230 verifies the A RRset

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