DNSSEC Debugger

Domain Name:

Time: 2026-04-11 04:30:58 UTC

Analyzing DNSSEC problems for epfl.ch

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 d.root-servers.net for ./DNSKEY
	Received 1414 bytes from 199.7.91.13
	;; Response received from [199.7.91.13] 1414 octets ;; HEADER SECTION ;; id = 20118 ;; 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 = 5 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1450, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; . IN DNSKEY ;; ANSWER SECTION (5 records) . 172800 IN DNSKEY ( 256 3 8 AwEAAbNTVC2+pry4pc37pZI9Oj6b8FHxT3VGrvSPKLE1Tjyfe2kUZUtVX5xrv6AV4BVO+ygrYjGZ MNgEnbLU4zknnlnhI2e0g6iTza1aZh0dRZXGH16C1NUNq1CxBkUhIYQhQDeIOtLacx+RmFTc+hSH JJ2MJ79IS00kA7eKi6mofQ7SPJmdJVjI+JAx791y0f5QaB+iHGANU53FwiYXNUQjfAzCrtOaSevG sx8SO8BTaXLAjFq5eewOtwScVwfVDhEXlvpE6e+mIncwhNKaMRD9IPuHENqCNPI5MjxfAMVS6cEY 8eEozIkv/vHc+0Auu3n+Fcx6F2Js4KPXaHEShAXugfU= ) ; keytag 21831 . 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 ( 257 3 8 AwEAAa96jeuknZlaeSrvyAJj6ZHv28hhOKkx3rLGXVaC6rXTsDc449/cidltpkyGwCJNnOAlFNKF 2jBosZBU5eeHspaQWOmOElZsjICMQMC3aeHbGiShvZsx4wMYSjH8e7Vrhbu6irwCzVBApESjbUdp WWmEnhathWu1jo+siFUiRAAxm9qyJNg/wOZqqzL/dL/q8PkcRU5oUKEpUge71M3ej2/7CPqpdVwu MoTvoB+ZOT4YeGyxMvHmbrxlFzGOHOijtzN+u1TQNatX2XBuzZNQ1K+s2CXkPIZo7s6JgZyvaBev YtxPvYLw4z9mR7K2vaF18UYH9Z9GNUUeayffKC73PYc= ) ; keytag 38696 . 172800 IN DNSKEY ( 256 3 8 AwEAAb5dDYffpgAJ8VUGLwQtWXPlQWsjIFJtCM00/XaKU+8ln+ofah3q2KxEIjvzQg+nqdxRj+8e mtPne1mtYcbFWP4Q9E+DniOJLK09R05FuzvGbrG7DDdRDUX/cedFdV7O8pFEAYpJqYNR9BCTIAV9 73DO2biauKSA31b7I2lK/woxoR1tf5cqJ4SMbJUviuHicAEoUi2ATswloZNWd5T5thmEFZnxFx7D 5UgKCY7oflS7+GU7dNJwEtmFnWYVETHN0kHXVz6aguouaAZp706YXNIoR/iTgQhmsR7XX+wL0Z8Q M2LxQIyU6vRZ06IyuJMGRMiwkSuGElbumyBt12JZbrU= ) ; keytag 54393 . 172800 IN RRSIG ( DNSKEY 8 0 172800 20260422000000 20260401000000 20326 . Nt4x7yqmsincs4ioIgZsndCkDnX0VGYvrwktw71R5xqyzdE8no8GBFuMSWBfOe7t64hIVApinTCZ ozwhiHQ9vjxEzz1vOf/3AjXXYclWI2UtaLlkJnb+Kv5ZFQH5j98nmRo1d0DKHg5rVUUQKY0VsfxP mnJ0y+ZWA7RWzQSR0zKvZbrX2wjtaUe5ZqpWk/+Yk3e4MiC1P9wMs5w6X+MkidQDlMQsrYQW57Xt 8iqTK2Wm66WIXzDkP7OSl8jTLINhz+o/3OOMLgkG8zTwh4BTWI36ySyZIUtqXdrsIZrX60U1nutq AMONInBHXGLfw3VODBlMvIeD0WLk3e52pYP/Tg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 4 DNSKEY records for .
	`. 172800 IN DNSKEY ( 256 3 8 AwEAAbNTVC2+pry4pc37pZI9Oj6b8FHxT3VGrvSPKLE1Tjyfe2kUZUtVX5xrv6AV4BVO+ygrYjGZ MNgEnbLU4zknnlnhI2e0g6iTza1aZh0dRZXGH16C1NUNq1CxBkUhIYQhQDeIOtLacx+RmFTc+hSH JJ2MJ79IS00kA7eKi6mofQ7SPJmdJVjI+JAx791y0f5QaB+iHGANU53FwiYXNUQjfAzCrtOaSevG sx8SO8BTaXLAjFq5eewOtwScVwfVDhEXlvpE6e+mIncwhNKaMRD9IPuHENqCNPI5MjxfAMVS6cEY 8eEozIkv/vHc+0Auu3n+Fcx6F2Js4KPXaHEShAXugfU= ) ; keytag 21831`
	`. 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 ( 257 3 8 AwEAAa96jeuknZlaeSrvyAJj6ZHv28hhOKkx3rLGXVaC6rXTsDc449/cidltpkyGwCJNnOAlFNKF 2jBosZBU5eeHspaQWOmOElZsjICMQMC3aeHbGiShvZsx4wMYSjH8e7Vrhbu6irwCzVBApESjbUdp WWmEnhathWu1jo+siFUiRAAxm9qyJNg/wOZqqzL/dL/q8PkcRU5oUKEpUge71M3ej2/7CPqpdVwu MoTvoB+ZOT4YeGyxMvHmbrxlFzGOHOijtzN+u1TQNatX2XBuzZNQ1K+s2CXkPIZo7s6JgZyvaBev YtxPvYLw4z9mR7K2vaF18UYH9Z9GNUUeayffKC73PYc= ) ; keytag 38696`
	`. 172800 IN DNSKEY ( 256 3 8 AwEAAb5dDYffpgAJ8VUGLwQtWXPlQWsjIFJtCM00/XaKU+8ln+ofah3q2KxEIjvzQg+nqdxRj+8e mtPne1mtYcbFWP4Q9E+DniOJLK09R05FuzvGbrG7DDdRDUX/cedFdV7O8pFEAYpJqYNR9BCTIAV9 73DO2biauKSA31b7I2lK/woxoR1tf5cqJ4SMbJUviuHicAEoUi2ATswloZNWd5T5thmEFZnxFx7D 5UgKCY7oflS7+GU7dNJwEtmFnWYVETHN0kHXVz6aguouaAZp706YXNIoR/iTgQhmsR7XX+wL0Z8Q M2LxQIyU6vRZ06IyuJMGRMiwkSuGElbumyBt12JZbrU= ) ; keytag 54393`
	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 20260422000000 20260401000000 20326 . Nt4x7yqmsincs4ioIgZsndCkDnX0VGYvrwktw71R5xqyzdE8no8GBFuMSWBfOe7t64hIVApinTCZ ozwhiHQ9vjxEzz1vOf/3AjXXYclWI2UtaLlkJnb+Kv5ZFQH5j98nmRo1d0DKHg5rVUUQKY0VsfxP mnJ0y+ZWA7RWzQSR0zKvZbrX2wjtaUe5ZqpWk/+Yk3e4MiC1P9wMs5w6X+MkidQDlMQsrYQW57Xt 8iqTK2Wm66WIXzDkP7OSl8jTLINhz+o/3OOMLgkG8zTwh4BTWI36ySyZIUtqXdrsIZrX60U1nutq AMONInBHXGLfw3VODBlMvIeD0WLk3e52pYP/Tg== )`
	RRSIG=20326 and DNSKEY=20326/SEP verifies the DNSKEY RRset
	DNSKEY=21831 is now in the chain-of-trust
	DNSKEY=38696/SEP is now in the chain-of-trust
	DNSKEY=54393 is now in the chain-of-trust
	Query to l.root-servers.net for epfl.ch/A
	Received 675 bytes from 199.7.83.42
	;; Response received from [199.7.83.42] 675 octets ;; HEADER SECTION ;; id = 47650 ;; 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 = 11 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; epfl.ch. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (7 records) ch. 172800 IN NS a.nic.ch. ch. 172800 IN NS b.nic.ch. ch. 172800 IN NS d.nic.ch. ch. 172800 IN NS e.nic.ch. ch. 172800 IN NS f.nic.ch. ch. 86400 IN DS ( 58745 13 2 083ed7735a6aad21d51cb0af5c485055602b392435e92b2c13614a6bc8d46b92 ) ch. 86400 IN RRSIG ( DS 8 1 86400 20260423170000 20260410160000 54393 . Q0BQsJHroYnkiRP7Q4KFllel0fhKGmNTQtFqZQbNvGVmTT0Btx1QVq1zuZcaOCOEaLECl6Xtog9d /vzQQPwZvzR8sEXQ8t2e5ebmAKN81KooEUJkRsB1uWBKgYV3OxKGNQ2JLbns39wGmn3QBByjtlGd OU52yR5VY7Vizy1izuuy01o0yAFuPP50ccSCTA66T/8JAl5vjuwgnjzrHV06jC0EvQx47VZF6qYI qW4M+w4gXnSAMWu9a2zvsvjffm9xRPzc8tQgfHL6e9mha1+0nxLuG83pDAAyUyicY1alacijb6aQ 9RcXFGyTfGJ4e8sGZzW3ECzMVQPujM5sB9/BRw== ) ;; ADDITIONAL SECTION (11 records) a.nic.ch. 172800 IN A 130.59.31.41 b.nic.ch. 172800 IN A 130.59.31.43 d.nic.ch. 172800 IN A 194.0.25.39 e.nic.ch. 172800 IN A 194.0.17.1 f.nic.ch. 172800 IN A 194.146.106.10 a.nic.ch. 172800 IN AAAA 2001:620:0:ff::56 b.nic.ch. 172800 IN AAAA 2001:620:0:ff::58 d.nic.ch. 172800 IN AAAA 2001:678:20::39 e.nic.ch. 172800 IN AAAA 2001:678:3::1 f.nic.ch. 172800 IN AAAA 2001:67c:1010:2::53 ;; { "EDNS-VERSION": 0 }
	Query to k.root-servers.net for ch/DNSKEY
	Received 670 bytes from 193.0.14.129
	;; Response received from [193.0.14.129] 670 octets ;; HEADER SECTION ;; id = 24781 ;; 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 = 11 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; ch. IN DNSKEY ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (7 records) ch. 172800 IN NS a.nic.ch. ch. 172800 IN NS b.nic.ch. ch. 172800 IN NS d.nic.ch. ch. 172800 IN NS e.nic.ch. ch. 172800 IN NS f.nic.ch. ch. 86400 IN DS ( 58745 13 2 083ed7735a6aad21d51cb0af5c485055602b392435e92b2c13614a6bc8d46b92 ) ch. 86400 IN RRSIG ( DS 8 1 86400 20260423170000 20260410160000 54393 . Q0BQsJHroYnkiRP7Q4KFllel0fhKGmNTQtFqZQbNvGVmTT0Btx1QVq1zuZcaOCOEaLECl6Xtog9d /vzQQPwZvzR8sEXQ8t2e5ebmAKN81KooEUJkRsB1uWBKgYV3OxKGNQ2JLbns39wGmn3QBByjtlGd OU52yR5VY7Vizy1izuuy01o0yAFuPP50ccSCTA66T/8JAl5vjuwgnjzrHV06jC0EvQx47VZF6qYI qW4M+w4gXnSAMWu9a2zvsvjffm9xRPzc8tQgfHL6e9mha1+0nxLuG83pDAAyUyicY1alacijb6aQ 9RcXFGyTfGJ4e8sGZzW3ECzMVQPujM5sB9/BRw== ) ;; ADDITIONAL SECTION (11 records) a.nic.ch. 172800 IN A 130.59.31.41 a.nic.ch. 172800 IN AAAA 2001:620:0:ff::56 b.nic.ch. 172800 IN A 130.59.31.43 b.nic.ch. 172800 IN AAAA 2001:620:0:ff::58 d.nic.ch. 172800 IN A 194.0.25.39 d.nic.ch. 172800 IN AAAA 2001:678:20::39 e.nic.ch. 172800 IN A 194.0.17.1 e.nic.ch. 172800 IN AAAA 2001:678:3::1 f.nic.ch. 172800 IN A 194.146.106.10 f.nic.ch. 172800 IN AAAA 2001:67c:1010:2::53 ;; { "EDNS-VERSION": 0 }
	Found child zone ch

	Checking DS between . and ch
	Query to a.root-servers.net for ch/DS
	Received 366 bytes from 198.41.0.4
	;; Response received from [198.41.0.4] 366 octets ;; HEADER SECTION ;; id = 62209 ;; 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": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; ch. IN DS ;; ANSWER SECTION (2 records) ch. 86400 IN DS ( 58745 13 2 083ed7735a6aad21d51cb0af5c485055602b392435e92b2c13614a6bc8d46b92 ) ch. 86400 IN RRSIG ( DS 8 1 86400 20260423170000 20260410160000 54393 . Q0BQsJHroYnkiRP7Q4KFllel0fhKGmNTQtFqZQbNvGVmTT0Btx1QVq1zuZcaOCOEaLECl6Xtog9d /vzQQPwZvzR8sEXQ8t2e5ebmAKN81KooEUJkRsB1uWBKgYV3OxKGNQ2JLbns39wGmn3QBByjtlGd OU52yR5VY7Vizy1izuuy01o0yAFuPP50ccSCTA66T/8JAl5vjuwgnjzrHV06jC0EvQx47VZF6qYI qW4M+w4gXnSAMWu9a2zvsvjffm9xRPzc8tQgfHL6e9mha1+0nxLuG83pDAAyUyicY1alacijb6aQ 9RcXFGyTfGJ4e8sGZzW3ECzMVQPujM5sB9/BRw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 1 DS records for ch in the . zone
	DS=58745/SHA-256 has algorithm ECDSAP256SHA256
	Found 1 RRSIGs over DS RRset
	`ch. 86400 IN RRSIG ( DS 8 1 86400 20260423170000 20260410160000 54393 . Q0BQsJHroYnkiRP7Q4KFllel0fhKGmNTQtFqZQbNvGVmTT0Btx1QVq1zuZcaOCOEaLECl6Xtog9d /vzQQPwZvzR8sEXQ8t2e5ebmAKN81KooEUJkRsB1uWBKgYV3OxKGNQ2JLbns39wGmn3QBByjtlGd OU52yR5VY7Vizy1izuuy01o0yAFuPP50ccSCTA66T/8JAl5vjuwgnjzrHV06jC0EvQx47VZF6qYI qW4M+w4gXnSAMWu9a2zvsvjffm9xRPzc8tQgfHL6e9mha1+0nxLuG83pDAAyUyicY1alacijb6aQ 9RcXFGyTfGJ4e8sGZzW3ECzMVQPujM5sB9/BRw== )`
	RRSIG=54393 and DNSKEY=54393 verifies the DS RRset
	DS=58745/SHA-256 is now in the chain-of-trust
	`ch. 86400 IN DS ( 58745 13 2 083ed7735a6aad21d51cb0af5c485055602b392435e92b2c13614a6bc8d46b92 )`
	Query to d.nic.ch for ch/DNSKEY
	Received 369 bytes from 194.0.25.39
	;; Response received from [194.0.25.39] 369 octets ;; HEADER SECTION ;; id = 10078 ;; 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": 1400, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; ch. IN DNSKEY ;; ANSWER SECTION (4 records) ch. 86400 IN DNSKEY ( 256 3 13 ril2OuZyh1DZvcBMLgq8m7iCgaWQUV7wx9xArjt0Wxwhk4mHQMk53UBGVRRtDYwA0FhQt6EC56z7 TJK0BkgCaw== ) ; keytag 55304 ch. 86400 IN DNSKEY ( 256 3 13 yc/n0uEm+/RIuEkugPYMsVuPV5YIFrkrQcrSlDesC7FpUMOTWiWruVRYSmpjo0PQNfPoO3imbGU5 SWtVjh26BQ== ) ; keytag 59251 ch. 86400 IN DNSKEY ( 257 3 13 af3VgrsVYa6Jm3d1lwsoCAEqQbeNpLUJ5kHjkUksCCPvubXuPEwTJGDUUbw9QRJtm6lBIAjbjtAc cGemAgcyZQ== ) ; keytag 58745 ch. 86400 IN RRSIG ( DNSKEY 13 1 86400 20260429100909 20260314090909 58745 ch. QtLwLeX0pi9MCG1aU8Ln0XH23N/6SrJ91M2XvcONyHx9Z8UQgUwLwKeUMKhoYtYfSjbefW4/Jet3 Q4rVJoSrLA== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 3 DNSKEY records for ch
	`ch. 86400 IN DNSKEY ( 256 3 13 ril2OuZyh1DZvcBMLgq8m7iCgaWQUV7wx9xArjt0Wxwhk4mHQMk53UBGVRRtDYwA0FhQt6EC56z7 TJK0BkgCaw== ) ; keytag 55304`
	`ch. 86400 IN DNSKEY ( 256 3 13 yc/n0uEm+/RIuEkugPYMsVuPV5YIFrkrQcrSlDesC7FpUMOTWiWruVRYSmpjo0PQNfPoO3imbGU5 SWtVjh26BQ== ) ; keytag 59251`
	`ch. 86400 IN DNSKEY ( 257 3 13 af3VgrsVYa6Jm3d1lwsoCAEqQbeNpLUJ5kHjkUksCCPvubXuPEwTJGDUUbw9QRJtm6lBIAjbjtAc cGemAgcyZQ== ) ; keytag 58745`
	DNSKEY=58745/SEP is now in the chain-of-trust
	DS=58745/SHA-256 verifies DNSKEY=58745/SEP
	Found 1 RRSIGs over DNSKEY RRset
	`ch. 86400 IN RRSIG ( DNSKEY 13 1 86400 20260429100909 20260314090909 58745 ch. QtLwLeX0pi9MCG1aU8Ln0XH23N/6SrJ91M2XvcONyHx9Z8UQgUwLwKeUMKhoYtYfSjbefW4/Jet3 Q4rVJoSrLA== )`
	RRSIG=58745 and DNSKEY=58745/SEP verifies the DNSKEY RRset
	DNSKEY=55304 is now in the chain-of-trust
	DNSKEY=59251 is now in the chain-of-trust
	Query to e.nic.ch for epfl.ch/A
	Received 382 bytes from 194.0.17.1
	;; Response received from [194.0.17.1] 382 octets ;; HEADER SECTION ;; id = 57203 ;; 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 = 5 arcount = 7 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; epfl.ch. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (5 records) epfl.ch. 3600 IN NS stisun2.epfl.ch. epfl.ch. 3600 IN NS stisun1.epfl.ch. epfl.ch. 3600 IN NS scsnms.switch.ch. epfl.ch. 900 IN NSEC epfl-architecture.ch. NS RRSIG NSEC epfl.ch. 900 IN RRSIG ( NSEC 13 2 900 20260501031821 20260407093217 55304 ch. jw2qBYCI8cft/wh/klJzQkyMGnDi9T5iipFVf+t+6qzhCGA+oqoZs9mCrWAl0gZb2wAFUR0O2oyS T49QAjFxXg== ) ;; ADDITIONAL SECTION (7 records) stisun2.epfl.ch. 3600 IN A 128.178.15.7 stisun1.epfl.ch. 3600 IN A 128.178.15.8 scsnms.switch.ch. 3600 IN A 130.59.31.26 stisun2.epfl.ch. 3600 IN AAAA 2001:620:618:10f:1:80b2:f07:1 stisun1.epfl.ch. 3600 IN AAAA 2001:620:618:10f:1:80b2:f08:1 scsnms.switch.ch. 3600 IN AAAA 2001:620:0:ff::a7 ;; { "EDNS-VERSION": 0 }
	Query to f.nic.ch for epfl.ch/DNSKEY
	Received 380 bytes from 194.146.106.10
	;; Response received from [194.146.106.10] 380 octets ;; HEADER SECTION ;; id = 51150 ;; 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 = 5 arcount = 7 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; epfl.ch. IN DNSKEY ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (5 records) epfl.ch. 3600 IN NS stisun1.epfl.ch. epfl.ch. 3600 IN NS stisun2.epfl.ch. epfl.ch. 3600 IN NS scsnms.switch.ch. epfl.ch. 900 IN NSEC epfl-architecture.ch. NS RRSIG NSEC epfl.ch. 900 IN RRSIG ( NSEC 13 2 900 20260501031821 20260407093217 55304 ch. jw2qBYCI8cft/wh/klJzQkyMGnDi9T5iipFVf+t+6qzhCGA+oqoZs9mCrWAl0gZb2wAFUR0O2oyS T49QAjFxXg== ) ;; ADDITIONAL SECTION (7 records) stisun1.epfl.ch. 3600 IN A 128.178.15.8 stisun2.epfl.ch. 3600 IN A 128.178.15.7 scsnms.switch.ch. 3600 IN A 130.59.31.26 stisun1.epfl.ch. 3600 IN AAAA 2001:620:618:10f:1:80b2:f08:1 stisun2.epfl.ch. 3600 IN AAAA 2001:620:618:10f:1:80b2:f07:1 scsnms.switch.ch. 3600 IN AAAA 2001:620:0:ff::a7 ;; { "EDNS-VERSION": 0 }
	Found child zone epfl.ch

epfl.ch

	Checking DS between ch and epfl.ch
	Query to e.nic.ch for epfl.ch/DS
	Received 341 bytes from 194.0.17.1
	;; Response received from [194.0.17.1] 341 octets ;; HEADER SECTION ;; id = 31825 ;; 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 = 0 ;; nscount = 4 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; epfl.ch. IN DS ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (4 records) ch. 900 IN SOA ( a.nic.ch. dns-operation.switch.ch. 2026041112 ;serial 900 ;refresh 600 ;retry 1209600 ;expire 900 ;minimum ) ch. 900 IN RRSIG ( SOA 13 1 900 20260511040109 20260411030213 55304 ch. 5nAD6l+tfEnmuByEr6OpFF90MDU9Y0R/Xp3ebRgZogjP2f+xXPnrfpAZ/3kc1bkL+jtn8j/Jawo7 ikITl3psmA== ) epfl.ch. 900 IN NSEC epfl-architecture.ch. NS RRSIG NSEC epfl.ch. 900 IN RRSIG ( NSEC 13 2 900 20260501031821 20260407093217 55304 ch. jw2qBYCI8cft/wh/klJzQkyMGnDi9T5iipFVf+t+6qzhCGA+oqoZs9mCrWAl0gZb2wAFUR0O2oyS T49QAjFxXg== ) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	No DS records found for epfl.ch in the ch zone
	Query to scsnms.switch.ch for epfl.ch/DNSKEY
	Received 90 bytes from 130.59.31.26
	;; Response received from [130.59.31.26] 90 octets ;; HEADER SECTION ;; id = 36668 ;; 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 = 0 ;; nscount = 1 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; epfl.ch. IN DNSKEY ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (1 record) epfl.ch. 3600 IN SOA ( stisun1.epfl.ch. dnsmaster.epfl.ch. 79798805 ;serial 1200 ;refresh 450 ;retry 3600000 ;expire 3600 ;minimum ) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	No DNSKEY records found
	Query to stisun2.epfl.ch for epfl.ch/A
	Received 214 bytes from 128.178.15.7
	;; Response received from [128.178.15.7] 214 octets ;; HEADER SECTION ;; id = 33431 ;; 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 = 1 ;; nscount = 3 arcount = 5 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; epfl.ch. IN A ;; ANSWER SECTION (1 record) epfl.ch. 86400 IN A 128.178.211.3 ;; AUTHORITY SECTION (3 records) epfl.ch. 86400 IN NS stisun1.epfl.ch. epfl.ch. 86400 IN NS stisun2.epfl.ch. epfl.ch. 86400 IN NS scsnms.switch.ch. ;; ADDITIONAL SECTION (5 records) stisun1.epfl.ch. 86400 IN A 128.178.15.8 stisun2.epfl.ch. 86400 IN A 128.178.15.7 stisun1.epfl.ch. 86400 IN AAAA 2001:620:618:10f:1:80b2:f08:1 stisun2.epfl.ch. 86400 IN AAAA 2001:620:618:10f:1:80b2:f07:1 ;; { "EDNS-VERSION": 0 }
	stisun2.epfl.ch is authoritative for epfl.ch
	Query to stisun1.epfl.ch for epfl.ch/SOA
	Received 244 bytes from 128.178.15.8
	;; Response received from [128.178.15.8] 244 octets ;; HEADER SECTION ;; id = 37496 ;; 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 = 1 ;; nscount = 3 arcount = 5 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; epfl.ch. IN SOA ;; ANSWER SECTION (1 record) epfl.ch. 86400 IN SOA ( stisun1.epfl.ch. dnsmaster.epfl.ch. 79798805 ;serial 1200 ;refresh 450 ;retry 3600000 ;expire 3600 ;minimum ) ;; AUTHORITY SECTION (3 records) epfl.ch. 86400 IN NS stisun1.epfl.ch. epfl.ch. 86400 IN NS stisun2.epfl.ch. epfl.ch. 86400 IN NS scsnms.switch.ch. ;; ADDITIONAL SECTION (5 records) stisun1.epfl.ch. 86400 IN A 128.178.15.8 stisun2.epfl.ch. 86400 IN A 128.178.15.7 stisun1.epfl.ch. 86400 IN AAAA 2001:620:618:10f:1:80b2:f08:1 stisun2.epfl.ch. 86400 IN AAAA 2001:620:618:10f:1:80b2:f07:1 ;; { "EDNS-VERSION": 0 }
	Query to scsnms.switch.ch for epfl.ch/SOA
	Received 90 bytes from 130.59.31.26
	;; Response received from [130.59.31.26] 90 octets ;; HEADER SECTION ;; id = 56157 ;; 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 = 1 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; epfl.ch. IN SOA ;; ANSWER SECTION (1 record) epfl.ch. 86400 IN SOA ( stisun1.epfl.ch. dnsmaster.epfl.ch. 79798805 ;serial 1200 ;refresh 450 ;retry 3600000 ;expire 3600 ;minimum ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Query to stisun2.epfl.ch for epfl.ch/A
	Received 214 bytes from 128.178.15.7
	;; Response received from [128.178.15.7] 214 octets ;; HEADER SECTION ;; id = 5306 ;; 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 = 1 ;; nscount = 3 arcount = 5 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; epfl.ch. IN A ;; ANSWER SECTION (1 record) epfl.ch. 86400 IN A 128.178.211.3 ;; AUTHORITY SECTION (3 records) epfl.ch. 86400 IN NS stisun2.epfl.ch. epfl.ch. 86400 IN NS stisun1.epfl.ch. epfl.ch. 86400 IN NS scsnms.switch.ch. ;; ADDITIONAL SECTION (5 records) stisun1.epfl.ch. 86400 IN A 128.178.15.8 stisun2.epfl.ch. 86400 IN A 128.178.15.7 stisun1.epfl.ch. 86400 IN AAAA 2001:620:618:10f:1:80b2:f08:1 stisun2.epfl.ch. 86400 IN AAAA 2001:620:618:10f:1:80b2:f07:1 ;; { "EDNS-VERSION": 0 }
	epfl.ch A RR has value 128.178.211.3
	No RRSIGs found

epfl.ch

	Query to scsnms.switch.ch for epfl.ch/A
	Received 52 bytes from 130.59.31.26
	;; Response received from [130.59.31.26] 52 octets ;; HEADER SECTION ;; id = 24868 ;; 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 = 1 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; epfl.ch. IN A ;; ANSWER SECTION (1 record) epfl.ch. 86400 IN A 128.178.211.3 ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	scsnms.switch.ch is authoritative for epfl.ch
	Query to scsnms.switch.ch for epfl.ch/A
	Received 52 bytes from 130.59.31.26
	;; Response received from [130.59.31.26] 52 octets ;; HEADER SECTION ;; id = 35754 ;; 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 = 1 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; epfl.ch. IN A ;; ANSWER SECTION (1 record) epfl.ch. 86400 IN A 128.178.211.3 ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	epfl.ch A RR has value 128.178.211.3
	No RRSIGs found

epfl.ch

	Query to stisun1.epfl.ch for epfl.ch/A
	Received 214 bytes from 128.178.15.8
	;; Response received from [128.178.15.8] 214 octets ;; HEADER SECTION ;; id = 22596 ;; 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 = 1 ;; nscount = 3 arcount = 5 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; epfl.ch. IN A ;; ANSWER SECTION (1 record) epfl.ch. 86400 IN A 128.178.211.3 ;; AUTHORITY SECTION (3 records) epfl.ch. 86400 IN NS stisun1.epfl.ch. epfl.ch. 86400 IN NS stisun2.epfl.ch. epfl.ch. 86400 IN NS scsnms.switch.ch. ;; ADDITIONAL SECTION (5 records) stisun1.epfl.ch. 86400 IN A 128.178.15.8 stisun2.epfl.ch. 86400 IN A 128.178.15.7 stisun1.epfl.ch. 86400 IN AAAA 2001:620:618:10f:1:80b2:f08:1 stisun2.epfl.ch. 86400 IN AAAA 2001:620:618:10f:1:80b2:f07:1 ;; { "EDNS-VERSION": 0 }
	stisun1.epfl.ch is authoritative for epfl.ch
	Query to stisun1.epfl.ch for epfl.ch/A
	Received 214 bytes from 128.178.15.8
	;; Response received from [128.178.15.8] 214 octets ;; HEADER SECTION ;; id = 53109 ;; 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 = 1 ;; nscount = 3 arcount = 5 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; epfl.ch. IN A ;; ANSWER SECTION (1 record) epfl.ch. 86400 IN A 128.178.211.3 ;; AUTHORITY SECTION (3 records) epfl.ch. 86400 IN NS stisun2.epfl.ch. epfl.ch. 86400 IN NS stisun1.epfl.ch. epfl.ch. 86400 IN NS scsnms.switch.ch. ;; ADDITIONAL SECTION (5 records) stisun1.epfl.ch. 86400 IN A 128.178.15.8 stisun2.epfl.ch. 86400 IN A 128.178.15.7 stisun1.epfl.ch. 86400 IN AAAA 2001:620:618:10f:1:80b2:f08:1 stisun2.epfl.ch. 86400 IN AAAA 2001:620:618:10f:1:80b2:f07:1 ;; { "EDNS-VERSION": 0 }
	epfl.ch A RR has value 128.178.211.3
	No RRSIGs found

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