DNSSEC Debugger

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Time: 2026-07-01 22:56:00 UTC

Analyzing DNSSEC problems for epfl.ch

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 l.root-servers.net for ./DNSKEY
	Received 1414 bytes from 199.7.83.42
	;; Response received from [199.7.83.42] 1414 octets ;; HEADER SECTION ;; id = 33289 ;; 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": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; . IN DNSKEY ;; ANSWER SECTION (5 records) . 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 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 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 RRSIG ( DNSKEY 8 0 172800 20260722000000 20260701000000 20326 . PIWRr97cYGmtOj+ITFeA8BqCHizd3FW/RykfcnMqVXQ7OqcE3lACjOoYfj+aj1iZfAP59iNsOWJz /J7AUAqxb7CpPIO9bJxllbhHyRkKEJhCO4M/MvlYAMmc6G8gnI4yBZEIiRPaFOP0Ux04kX/CMk4K oM89Rv4sQy02hsF7HeQb7GAowyKSW3hy0TazdwGeRyC00SjDCVZMVNCc8gPF4ZZsWgSmkpDDj3H1 V5JSzLiu/mtf0k/6oHTi0IrsaBKywdQO9JgAOvayfW0hhySQ2FoQSrZC5Hb1btjvkzj49LxGTy0q voRdHLjmnrsk8BqNlekAhJoLtIB+HEla/s1/DQ== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 4 DNSKEY records for .
	`. 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 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 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`
	DNSKEY=20326/SEP is now in the chain-of-trust
	DS=20326/SHA-256 verifies DNSKEY=20326/SEP
	DNSKEY=38696/SEP is now in the chain-of-trust
	DS=38696/SHA-256 verifies DNSKEY=38696/SEP
	Found 1 RRSIGs over DNSKEY RRset
	`. 172800 IN RRSIG ( DNSKEY 8 0 172800 20260722000000 20260701000000 20326 . PIWRr97cYGmtOj+ITFeA8BqCHizd3FW/RykfcnMqVXQ7OqcE3lACjOoYfj+aj1iZfAP59iNsOWJz /J7AUAqxb7CpPIO9bJxllbhHyRkKEJhCO4M/MvlYAMmc6G8gnI4yBZEIiRPaFOP0Ux04kX/CMk4K oM89Rv4sQy02hsF7HeQb7GAowyKSW3hy0TazdwGeRyC00SjDCVZMVNCc8gPF4ZZsWgSmkpDDj3H1 V5JSzLiu/mtf0k/6oHTi0IrsaBKywdQO9JgAOvayfW0hhySQ2FoQSrZC5Hb1btjvkzj49LxGTy0q voRdHLjmnrsk8BqNlekAhJoLtIB+HEla/s1/DQ== )`
	RRSIG=20326 and DNSKEY=20326/SEP verifies the DNSKEY RRset
	DNSKEY=54393 is now in the chain-of-trust
	DNSKEY=57780 is now in the chain-of-trust
	Query to f.root-servers.net for epfl.ch/A
	Received 675 bytes from 192.5.5.241
	;; Response received from [192.5.5.241] 675 octets ;; HEADER SECTION ;; id = 43448 ;; 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": 1472, ;; "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 20260714210000 20260701200000 57780 . RMLx2BX0kk5izXSBB8km1ZXm6VWnfmt3LN9bfVY3HIncfDmQU+DeV1qg+XbQ6ZlN6emNzh38Z4jl U3lF6+7drGX1j6J7hwLzUmkhd38FVYWYO7RbyojwaJXzq3UrlhAufPwDaSvFELgFucrBG/bqP8+1 9QMytBMYXwjueZyrqcWs8EKewGh3xfCwM7Qd5tOU5xe6hSSKZN14VmAeI/yWcEyXfzDMi6Bc9DRI HZjF3xtx/hu4/jbYDO4xEjUIiqGM+jlL6m0FGvV7JnS0W1qJjteYODURiFQhjOUH+UUlCbyAGEKj YFSr+pq3vzIfgfJjpQYkIr7PzNfym29amNXfWQ== ) ;; 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 }
	Query to i.root-servers.net for ch/DNSKEY
	Received 670 bytes from 192.36.148.17
	;; Response received from [192.36.148.17] 670 octets ;; HEADER SECTION ;; id = 47346 ;; 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 e.nic.ch. ch. 172800 IN NS d.nic.ch. ch. 172800 IN NS b.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 20260714210000 20260701200000 57780 . RMLx2BX0kk5izXSBB8km1ZXm6VWnfmt3LN9bfVY3HIncfDmQU+DeV1qg+XbQ6ZlN6emNzh38Z4jl U3lF6+7drGX1j6J7hwLzUmkhd38FVYWYO7RbyojwaJXzq3UrlhAufPwDaSvFELgFucrBG/bqP8+1 9QMytBMYXwjueZyrqcWs8EKewGh3xfCwM7Qd5tOU5xe6hSSKZN14VmAeI/yWcEyXfzDMi6Bc9DRI HZjF3xtx/hu4/jbYDO4xEjUIiqGM+jlL6m0FGvV7JnS0W1qJjteYODURiFQhjOUH+UUlCbyAGEKj YFSr+pq3vzIfgfJjpQYkIr7PzNfym29amNXfWQ== ) ;; 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 }
	Found child zone ch

	Checking DS between . and ch
	Query to g.root-servers.net for ch/DS
	Received 366 bytes from 192.112.36.4
	;; Response received from [192.112.36.4] 366 octets ;; HEADER SECTION ;; id = 18477 ;; 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) ;; ch. IN DS ;; ANSWER SECTION (2 records) ch. 86400 IN DS ( 58745 13 2 083ed7735a6aad21d51cb0af5c485055602b392435e92b2c13614a6bc8d46b92 ) ch. 86400 IN RRSIG ( DS 8 1 86400 20260714210000 20260701200000 57780 . RMLx2BX0kk5izXSBB8km1ZXm6VWnfmt3LN9bfVY3HIncfDmQU+DeV1qg+XbQ6ZlN6emNzh38Z4jl U3lF6+7drGX1j6J7hwLzUmkhd38FVYWYO7RbyojwaJXzq3UrlhAufPwDaSvFELgFucrBG/bqP8+1 9QMytBMYXwjueZyrqcWs8EKewGh3xfCwM7Qd5tOU5xe6hSSKZN14VmAeI/yWcEyXfzDMi6Bc9DRI HZjF3xtx/hu4/jbYDO4xEjUIiqGM+jlL6m0FGvV7JnS0W1qJjteYODURiFQhjOUH+UUlCbyAGEKj YFSr+pq3vzIfgfJjpQYkIr7PzNfym29amNXfWQ== ) ;; 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 20260714210000 20260701200000 57780 . RMLx2BX0kk5izXSBB8km1ZXm6VWnfmt3LN9bfVY3HIncfDmQU+DeV1qg+XbQ6ZlN6emNzh38Z4jl U3lF6+7drGX1j6J7hwLzUmkhd38FVYWYO7RbyojwaJXzq3UrlhAufPwDaSvFELgFucrBG/bqP8+1 9QMytBMYXwjueZyrqcWs8EKewGh3xfCwM7Qd5tOU5xe6hSSKZN14VmAeI/yWcEyXfzDMi6Bc9DRI HZjF3xtx/hu4/jbYDO4xEjUIiqGM+jlL6m0FGvV7JnS0W1qJjteYODURiFQhjOUH+UUlCbyAGEKj YFSr+pq3vzIfgfJjpQYkIr7PzNfym29amNXfWQ== )`
	RRSIG=57780 and DNSKEY=57780 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 a.nic.ch for ch/DNSKEY
	Received 369 bytes from 130.59.31.41
	;; Response received from [130.59.31.41] 369 octets ;; HEADER SECTION ;; id = 57082 ;; 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) ;; ch. IN DNSKEY ;; ANSWER SECTION (4 records) ch. 86400 IN DNSKEY ( 257 3 13 af3VgrsVYa6Jm3d1lwsoCAEqQbeNpLUJ5kHjkUksCCPvubXuPEwTJGDUUbw9QRJtm6lBIAjbjtAc cGemAgcyZQ== ) ; keytag 58745 ch. 86400 IN DNSKEY ( 256 3 13 SNhx88Qerh9m1yUihDiK1b5mGzG/dHIOSQbTU8eGGGxk+936fXnrItoByiG0SN/vBcaX9GfPNutZ yFnzjgjj4g== ) ; keytag 6546 ch. 86400 IN DNSKEY ( 256 3 13 M2is3u8XiBhISilZiytCrccGvbYPcfqWIZ6f0LzchYZf74SjC+6tSqWRnowm73VwDKOvfWLrsCec iIKQO9m0UQ== ) ; keytag 35417 ch. 86400 IN RRSIG ( DNSKEY 13 1 86400 20260728100909 20260612090909 58745 ch. cdkw5wdSXf2qrdKd3C3kWKDZ3psNQvBuEXKz2SMoueJoqlDHZmUvT2YORrwFFRFA2O5Xs80ooOvi JH10HFzMJQ== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 3 DNSKEY records for ch
	`ch. 86400 IN DNSKEY ( 257 3 13 af3VgrsVYa6Jm3d1lwsoCAEqQbeNpLUJ5kHjkUksCCPvubXuPEwTJGDUUbw9QRJtm6lBIAjbjtAc cGemAgcyZQ== ) ; keytag 58745`
	`ch. 86400 IN DNSKEY ( 256 3 13 SNhx88Qerh9m1yUihDiK1b5mGzG/dHIOSQbTU8eGGGxk+936fXnrItoByiG0SN/vBcaX9GfPNutZ yFnzjgjj4g== ) ; keytag 6546`
	`ch. 86400 IN DNSKEY ( 256 3 13 M2is3u8XiBhISilZiytCrccGvbYPcfqWIZ6f0LzchYZf74SjC+6tSqWRnowm73VwDKOvfWLrsCec iIKQO9m0UQ== ) ; keytag 35417`
	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 20260728100909 20260612090909 58745 ch. cdkw5wdSXf2qrdKd3C3kWKDZ3psNQvBuEXKz2SMoueJoqlDHZmUvT2YORrwFFRFA2O5Xs80ooOvi JH10HFzMJQ== )`
	RRSIG=58745 and DNSKEY=58745/SEP verifies the DNSKEY RRset
	DNSKEY=6546 is now in the chain-of-trust
	DNSKEY=35417 is now in the chain-of-trust
	Query to f.nic.ch for epfl.ch/A
	Received 380 bytes from 194.146.106.10
	;; Response received from [194.146.106.10] 380 octets ;; HEADER SECTION ;; id = 27212 ;; 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 A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (5 records) epfl.ch. 3600 IN NS stisun1.epfl.ch. epfl.ch. 3600 IN NS scsnms.switch.ch. epfl.ch. 3600 IN NS stisun2.epfl.ch. epfl.ch. 900 IN NSEC epfl-architecture.ch. NS RRSIG NSEC epfl.ch. 900 IN RRSIG ( NSEC 13 2 900 20260724050714 20260624043205 6546 ch. Ac+dClhpsKNHNnVF3Wmbww10S8arRVOKpMCWod4tIVkjLAa7F9gwOFxH4bZy9X5fKHp+Y/zYcDkU uRGhfTAVKQ== ) ;; 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 }
	Query to e.nic.ch for epfl.ch/DNSKEY
	Received 382 bytes from 194.0.17.1
	;; Response received from [194.0.17.1] 382 octets ;; HEADER SECTION ;; id = 55251 ;; 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 DNSKEY ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (5 records) epfl.ch. 3600 IN NS stisun1.epfl.ch. epfl.ch. 3600 IN NS scsnms.switch.ch. epfl.ch. 3600 IN NS stisun2.epfl.ch. epfl.ch. 900 IN NSEC epfl-architecture.ch. NS RRSIG NSEC epfl.ch. 900 IN RRSIG ( NSEC 13 2 900 20260724050714 20260624043205 6546 ch. Ac+dClhpsKNHNnVF3Wmbww10S8arRVOKpMCWod4tIVkjLAa7F9gwOFxH4bZy9X5fKHp+Y/zYcDkU uRGhfTAVKQ== ) ;; 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 }
	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 = 28534 ;; 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. 2026070201 ;serial 900 ;refresh 600 ;retry 1209600 ;expire 900 ;minimum ) ch. 900 IN RRSIG ( SOA 13 1 900 20260731214610 20260701213205 6546 ch. 2dG2wS8UbtdiIhzSOm86neI/MDAZMSvEo3kCVF6O4MeSCJO3Gva+mjn42k7nbPaFFJZ6KPil9aZl 2H5KE34RIA== ) epfl.ch. 900 IN NSEC epfl-architecture.ch. NS RRSIG NSEC epfl.ch. 900 IN RRSIG ( NSEC 13 2 900 20260724050714 20260624043205 6546 ch. Ac+dClhpsKNHNnVF3Wmbww10S8arRVOKpMCWod4tIVkjLAa7F9gwOFxH4bZy9X5fKHp+Y/zYcDkU uRGhfTAVKQ== ) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	No DS records found for epfl.ch in the ch zone
	Query to stisun1.epfl.ch for epfl.ch/DNSKEY
	Received 90 bytes from 128.178.15.8
	;; Response received from [128.178.15.8] 90 octets ;; HEADER SECTION ;; id = 55034 ;; 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. 79857845 ;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 = 32959 ;; 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 scsnms.switch.ch. epfl.ch. 86400 IN NS stisun1.epfl.ch. epfl.ch. 86400 IN NS stisun2.epfl.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 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 = 44094 ;; 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. 79857845 ;serial 1200 ;refresh 450 ;retry 3600000 ;expire 3600 ;minimum ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	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 = 26499 ;; 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. 79857845 ;serial 1200 ;refresh 450 ;retry 3600000 ;expire 3600 ;minimum ) ;; AUTHORITY SECTION (3 records) epfl.ch. 86400 IN NS scsnms.switch.ch. epfl.ch. 86400 IN NS stisun1.epfl.ch. epfl.ch. 86400 IN NS stisun2.epfl.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 stisun2.epfl.ch for epfl.ch/A
	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 = 60581 ;; 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 scsnms.switch.ch. epfl.ch. 86400 IN NS stisun1.epfl.ch. epfl.ch. 86400 IN NS stisun2.epfl.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
	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 = 32149 ;; 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
	epfl.ch A RR has value 128.178.211.3
	No RRSIGs found

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