DNSSEC Debugger

Domain Name:

Time: 2025-07-02 03:32:51 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 f.root-servers.net for ./DNSKEY
	Received 1414 bytes from 192.5.5.241
	;; Response received from [192.5.5.241] 1414 octets ;; HEADER SECTION ;; id = 8962 ;; 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": 65535, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; . IN DNSKEY ;; ANSWER SECTION (5 records) . 172800 IN DNSKEY ( 256 3 8 AwEAAbEbGCpGTDrcZTWqWWE72nphyshpRcILdzCVlBGU9Ln1Fui9kkseUOP+g5GLUeVFKdTloeRT A9+EYiQdXgWXmXmuW/nGxZjAikluF/O9NzLVrr5iZnth2xu+F48nrJlAgWWiMNau54NI5sZ3iVQf hFsq2pZmf43RauRPniYMShOLO7EBWWXr5glDSgZGS9fSm6xHwwF+g8D4m8oanjvdCBNxXzSEKS31 ibxjLifTfvwCg3y4XXcNW9U6Nu3JmoKUdxqpPPIkBvVQbIz4UO2FwaR13uXC03ALP1Yx2QNSS4SZ lcIMtAftQR9wtCiuPWQnFv4jkzWqlhp1Lmf7bcoL9yk= ) ; keytag 53148 . 172800 IN DNSKEY ( 256 3 8 AwEAAbauxLSFZ+KSWi2cT6TJbm3d+GIVqb2N1XnDjMsRme0b6JlGp/cvwmM5CaJ5LQ7tG1r7LuTH jYZadtbNk2nZmclq9r4KInS48ungoAZb0gJXVw8IvBTBb1YWQmiBqD285pJuORwTii7DF++nNJJk 3i55HJt9SmBI7m7t8nvx7OOY/w0inxg3fLH2uY0SKO8he4FGwMc4Ubiab8N8Yhyhh+FkKKdD/+oA cuGF75PjlSXO460B4MlNLlEcjDEzIsKauRYx4YVgSaNomGhMMFblmXRzgW+1R6ywvm5mC9+omlyy izZp2GJfPwGMezuKSGDndO6CYYEc5/lsRhvBYsGjdPM= ) ; keytag 46441 . 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 20250722000000 20250701000000 20326 . UGhOn2e0xbV2um4IqDwLtkXZVqk32Dz6Orahd8l3n5pQxAPO+PzC96lwt3YdDLFpzmu1FqPWugCK eq5uju1L2DklkEX7hnvBKKzb/Q2dkEA1w85dQQH34II778mePR3fvIDckntFXGsT9a8tdN9tFaP+ qJiwgtNbiKej8YheeX/DAAmZPn0s6/Bg3cLuozR9FXAwkgrA3rjcRpN/jKhPSauHvsin7gCbcUjs jA+P3l9y4Izc5ibPfdUIxVaTUt+OofHUV9VaZoexMQKwggIE78BLAs7AsP7KwlXDB8++Cy6IXVcg +9Gzv3k/gJokM3UHOGa0UrSfCIAKlfMFYADJBA== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 4 DNSKEY records for .
	`. 172800 IN DNSKEY ( 256 3 8 AwEAAbEbGCpGTDrcZTWqWWE72nphyshpRcILdzCVlBGU9Ln1Fui9kkseUOP+g5GLUeVFKdTloeRT A9+EYiQdXgWXmXmuW/nGxZjAikluF/O9NzLVrr5iZnth2xu+F48nrJlAgWWiMNau54NI5sZ3iVQf hFsq2pZmf43RauRPniYMShOLO7EBWWXr5glDSgZGS9fSm6xHwwF+g8D4m8oanjvdCBNxXzSEKS31 ibxjLifTfvwCg3y4XXcNW9U6Nu3JmoKUdxqpPPIkBvVQbIz4UO2FwaR13uXC03ALP1Yx2QNSS4SZ lcIMtAftQR9wtCiuPWQnFv4jkzWqlhp1Lmf7bcoL9yk= ) ; keytag 53148`
	`. 172800 IN DNSKEY ( 256 3 8 AwEAAbauxLSFZ+KSWi2cT6TJbm3d+GIVqb2N1XnDjMsRme0b6JlGp/cvwmM5CaJ5LQ7tG1r7LuTH jYZadtbNk2nZmclq9r4KInS48ungoAZb0gJXVw8IvBTBb1YWQmiBqD285pJuORwTii7DF++nNJJk 3i55HJt9SmBI7m7t8nvx7OOY/w0inxg3fLH2uY0SKO8he4FGwMc4Ubiab8N8Yhyhh+FkKKdD/+oA cuGF75PjlSXO460B4MlNLlEcjDEzIsKauRYx4YVgSaNomGhMMFblmXRzgW+1R6ywvm5mC9+omlyy izZp2GJfPwGMezuKSGDndO6CYYEc5/lsRhvBYsGjdPM= ) ; keytag 46441`
	`. 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
	Found 1 RRSIGs over DNSKEY RRset
	`. 172800 IN RRSIG ( DNSKEY 8 0 172800 20250722000000 20250701000000 20326 . UGhOn2e0xbV2um4IqDwLtkXZVqk32Dz6Orahd8l3n5pQxAPO+PzC96lwt3YdDLFpzmu1FqPWugCK eq5uju1L2DklkEX7hnvBKKzb/Q2dkEA1w85dQQH34II778mePR3fvIDckntFXGsT9a8tdN9tFaP+ qJiwgtNbiKej8YheeX/DAAmZPn0s6/Bg3cLuozR9FXAwkgrA3rjcRpN/jKhPSauHvsin7gCbcUjs jA+P3l9y4Izc5ibPfdUIxVaTUt+OofHUV9VaZoexMQKwggIE78BLAs7AsP7KwlXDB8++Cy6IXVcg +9Gzv3k/gJokM3UHOGa0UrSfCIAKlfMFYADJBA== )`
	RRSIG=20326 and DNSKEY=20326/SEP verifies the DNSKEY RRset
	DNSKEY=53148 is now in the chain-of-trust
	DNSKEY=46441 is now in the chain-of-trust
	DNSKEY=38696/SEP is now in the chain-of-trust
	Query to h.root-servers.net for epfl.ch/A
	Received 675 bytes from 198.97.190.53
	;; Response received from [198.97.190.53] 675 octets ;; HEADER SECTION ;; id = 42804 ;; 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) ;; 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 ( 14051 13 2 abf0b9c56282f0558d59b5eef0f881b7db4f39043972411fdb06e66593a9e8b1 ) ch. 86400 IN RRSIG ( DS 8 1 86400 20250714170000 20250701160000 46441 . Crr0YsfUuCbT6ixC5vKaHu1zGiltIUPudIjpdXKe6mNE5K0yovUAAwuBy5f8yqJOQZ5lPDS8hM9I C73R2ZAz58mFdmebQ6EWVd9EUu4HIte7WXTUBzOQv5E1wh80lZj+HrOaYmTFzEwZ+zUy9oWhWnjp uVXApGin+9WxGXj9hQUTqrvpykNOH5BVygtFRgtKgIvZcLvZ1XPFgf88XSA1Figbe7jEl43C/0+h z72uJCouEZtq8x4kgYeyHadnCuSqx1Yj0/J3SKB9Qm+ALiwupAVwgwBLQGIibbyVfBKWruCQQoJp hzNFlQfYn7qlF9Nuni4azJyP8CWisXPTB7vJDQ== ) ;; 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 g.root-servers.net for ch/DNSKEY
	Received 672 bytes from 192.112.36.4
	;; Response received from [192.112.36.4] 672 octets ;; HEADER SECTION ;; id = 31250 ;; 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 e.nic.ch. ch. 172800 IN NS f.nic.ch. ch. 172800 IN NS d.nic.ch. ch. 172800 IN NS b.nic.ch. ch. 172800 IN NS a.nic.ch. ch. 86400 IN DS ( 14051 13 2 abf0b9c56282f0558d59b5eef0f881b7db4f39043972411fdb06e66593a9e8b1 ) ch. 86400 IN RRSIG ( DS 8 1 86400 20250714170000 20250701160000 46441 . Crr0YsfUuCbT6ixC5vKaHu1zGiltIUPudIjpdXKe6mNE5K0yovUAAwuBy5f8yqJOQZ5lPDS8hM9I C73R2ZAz58mFdmebQ6EWVd9EUu4HIte7WXTUBzOQv5E1wh80lZj+HrOaYmTFzEwZ+zUy9oWhWnjp uVXApGin+9WxGXj9hQUTqrvpykNOH5BVygtFRgtKgIvZcLvZ1XPFgf88XSA1Figbe7jEl43C/0+h z72uJCouEZtq8x4kgYeyHadnCuSqx1Yj0/J3SKB9Qm+ALiwupAVwgwBLQGIibbyVfBKWruCQQoJp hzNFlQfYn7qlF9Nuni4azJyP8CWisXPTB7vJDQ== ) ;; ADDITIONAL SECTION (11 records) f.nic.ch. 172800 IN A 194.146.106.10 e.nic.ch. 172800 IN A 194.0.17.1 d.nic.ch. 172800 IN A 194.0.25.39 b.nic.ch. 172800 IN A 130.59.31.43 a.nic.ch. 172800 IN A 130.59.31.41 f.nic.ch. 172800 IN AAAA 2001:67c:1010:2::53 e.nic.ch. 172800 IN AAAA 2001:678:3::1 d.nic.ch. 172800 IN AAAA 2001:678:20::39 b.nic.ch. 172800 IN AAAA 2001:620:0:ff::58 a.nic.ch. 172800 IN AAAA 2001:620:0:ff::56 ;; { "EDNS-VERSION": 0 }
	Found child zone ch

	Checking DS between . and ch
	Query to h.root-servers.net for ch/DS
	Received 366 bytes from 198.97.190.53
	;; Response received from [198.97.190.53] 366 octets ;; HEADER SECTION ;; id = 6494 ;; 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 ( 14051 13 2 abf0b9c56282f0558d59b5eef0f881b7db4f39043972411fdb06e66593a9e8b1 ) ch. 86400 IN RRSIG ( DS 8 1 86400 20250714170000 20250701160000 46441 . Crr0YsfUuCbT6ixC5vKaHu1zGiltIUPudIjpdXKe6mNE5K0yovUAAwuBy5f8yqJOQZ5lPDS8hM9I C73R2ZAz58mFdmebQ6EWVd9EUu4HIte7WXTUBzOQv5E1wh80lZj+HrOaYmTFzEwZ+zUy9oWhWnjp uVXApGin+9WxGXj9hQUTqrvpykNOH5BVygtFRgtKgIvZcLvZ1XPFgf88XSA1Figbe7jEl43C/0+h z72uJCouEZtq8x4kgYeyHadnCuSqx1Yj0/J3SKB9Qm+ALiwupAVwgwBLQGIibbyVfBKWruCQQoJp hzNFlQfYn7qlF9Nuni4azJyP8CWisXPTB7vJDQ== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 1 DS records for ch in the . zone
	DS=14051/SHA-256 has algorithm ECDSAP256SHA256
	Found 1 RRSIGs over DS RRset
	`ch. 86400 IN RRSIG ( DS 8 1 86400 20250714170000 20250701160000 46441 . Crr0YsfUuCbT6ixC5vKaHu1zGiltIUPudIjpdXKe6mNE5K0yovUAAwuBy5f8yqJOQZ5lPDS8hM9I C73R2ZAz58mFdmebQ6EWVd9EUu4HIte7WXTUBzOQv5E1wh80lZj+HrOaYmTFzEwZ+zUy9oWhWnjp uVXApGin+9WxGXj9hQUTqrvpykNOH5BVygtFRgtKgIvZcLvZ1XPFgf88XSA1Figbe7jEl43C/0+h z72uJCouEZtq8x4kgYeyHadnCuSqx1Yj0/J3SKB9Qm+ALiwupAVwgwBLQGIibbyVfBKWruCQQoJp hzNFlQfYn7qlF9Nuni4azJyP8CWisXPTB7vJDQ== )`
	RRSIG=46441 and DNSKEY=46441 verifies the DS RRset
	DS=14051/SHA-256 is now in the chain-of-trust
	`ch. 86400 IN DS ( 14051 13 2 abf0b9c56282f0558d59b5eef0f881b7db4f39043972411fdb06e66593a9e8b1 )`
	Query to e.nic.ch for ch/DNSKEY
	Received 369 bytes from 194.0.17.1
	;; Response received from [194.0.17.1] 369 octets ;; HEADER SECTION ;; id = 30997 ;; 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) ;; ch. IN DNSKEY ;; ANSWER SECTION (4 records) ch. 86400 IN DNSKEY ( 256 3 13 4VGtfMoQVb41NK5ARbSsrebT+HGAR1XgtT7vx0fM3Rt/3fy7eNa/fizFq+AS5nA5/PUvl/l11Uh4 nNGA2/eBgQ== ) ; keytag 47988 ch. 86400 IN DNSKEY ( 256 3 13 h0y8P7D9VX9eEEl/AJtXUxohoNXEqFXx9MaIfm2XRF3SxgW+ScoBi+beTgqVDPNH5kMyCpbXwdbd 9ykPJucGyg== ) ; keytag 55595 ch. 86400 IN DNSKEY ( 257 3 13 z6UllGdnGdbzYkhjl1gHlJ9gm/cSid3z1J41nkpm2pzSexfPaugDCstdx4z/hVlRPv007RQOuD12 qpOrKGfPog== ) ; keytag 14051 ch. 86400 IN RRSIG ( DNSKEY 13 1 86400 20250802100909 20250617090909 14051 ch. XTSOfsJC2kXdxwJlUisiP0s2T4izAUWTyqMC9OhM3cnN82Jivtm6MRYOM3t1xEoYGSxYhbwq6JBW UPD5+j5BLQ== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 3 DNSKEY records for ch
	`ch. 86400 IN DNSKEY ( 256 3 13 4VGtfMoQVb41NK5ARbSsrebT+HGAR1XgtT7vx0fM3Rt/3fy7eNa/fizFq+AS5nA5/PUvl/l11Uh4 nNGA2/eBgQ== ) ; keytag 47988`
	`ch. 86400 IN DNSKEY ( 256 3 13 h0y8P7D9VX9eEEl/AJtXUxohoNXEqFXx9MaIfm2XRF3SxgW+ScoBi+beTgqVDPNH5kMyCpbXwdbd 9ykPJucGyg== ) ; keytag 55595`
	`ch. 86400 IN DNSKEY ( 257 3 13 z6UllGdnGdbzYkhjl1gHlJ9gm/cSid3z1J41nkpm2pzSexfPaugDCstdx4z/hVlRPv007RQOuD12 qpOrKGfPog== ) ; keytag 14051`
	DNSKEY=14051/SEP is now in the chain-of-trust
	DS=14051/SHA-256 verifies DNSKEY=14051/SEP
	Found 1 RRSIGs over DNSKEY RRset
	`ch. 86400 IN RRSIG ( DNSKEY 13 1 86400 20250802100909 20250617090909 14051 ch. XTSOfsJC2kXdxwJlUisiP0s2T4izAUWTyqMC9OhM3cnN82Jivtm6MRYOM3t1xEoYGSxYhbwq6JBW UPD5+j5BLQ== )`
	RRSIG=14051 and DNSKEY=14051/SEP verifies the DNSKEY RRset
	DNSKEY=47988 is now in the chain-of-trust
	DNSKEY=55595 is now in the chain-of-trust
	Query to e.nic.ch for epfl.ch/A
	Received 302 bytes from 194.0.17.1
	;; Response received from [194.0.17.1] 302 octets ;; HEADER SECTION ;; id = 49782 ;; 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 = 4 arcount = 5 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; epfl.ch. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (4 records) epfl.ch. 3600 IN NS stisun1.epfl.ch. epfl.ch. 3600 IN NS stisun2.epfl.ch. epfl.ch. 900 IN NSEC epfl-africa.ch. NS RRSIG NSEC epfl.ch. 900 IN RRSIG ( NSEC 13 2 900 20250721222305 20250621220158 47988 ch. jY5N2mUlR5vEoBbqufAKlm9Gw5kc2L8vmdBdTkF7XM9wiqwUUsRE0XY4Cb1zuLDCxBHOB5dSsqfy 92mBmhcXyQ== ) ;; ADDITIONAL SECTION (5 records) stisun2.epfl.ch. 3600 IN A 128.178.15.7 stisun1.epfl.ch. 3600 IN A 128.178.15.8 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 ;; { "EDNS-VERSION": 0 }
	Query to a.nic.ch for epfl.ch/DNSKEY
	Received 302 bytes from 130.59.31.41
	;; Response received from [130.59.31.41] 302 octets ;; HEADER SECTION ;; id = 54906 ;; 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 = 4 arcount = 5 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; epfl.ch. IN DNSKEY ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (4 records) epfl.ch. 3600 IN NS stisun1.epfl.ch. epfl.ch. 3600 IN NS stisun2.epfl.ch. epfl.ch. 900 IN NSEC epfl-africa.ch. NS RRSIG NSEC epfl.ch. 900 IN RRSIG ( NSEC 13 2 900 20250721222305 20250621220158 47988 ch. jY5N2mUlR5vEoBbqufAKlm9Gw5kc2L8vmdBdTkF7XM9wiqwUUsRE0XY4Cb1zuLDCxBHOB5dSsqfy 92mBmhcXyQ== ) ;; ADDITIONAL SECTION (5 records) stisun1.epfl.ch. 3600 IN A 128.178.15.8 stisun2.epfl.ch. 3600 IN A 128.178.15.7 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 ;; { "EDNS-VERSION": 0 }
	Found child zone epfl.ch

epfl.ch

	Checking DS between ch and epfl.ch
	Query to d.nic.ch for epfl.ch/DS
	Received 331 bytes from 194.0.25.39
	;; Response received from [194.0.25.39] 331 octets ;; HEADER SECTION ;; id = 29218 ;; 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": 1400, ;; "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. 2025070205 ;serial 900 ;refresh 600 ;retry 1209600 ;expire 900 ;minimum ) ch. 900 IN RRSIG ( SOA 13 1 900 20250801024154 20250702020151 47988 ch. ZHo0kvPbwYb8jLlTBPtUJHnrzKnhh7XlP3hJQx+QUMSjNPQ/SzEX1TXRjbtXJ60eOngzQcJoAv8V VFqSfREY4w== ) epfl.ch. 900 IN NSEC epfl-africa.ch. NS RRSIG NSEC epfl.ch. 900 IN RRSIG ( NSEC 13 2 900 20250721222305 20250621220158 47988 ch. jY5N2mUlR5vEoBbqufAKlm9Gw5kc2L8vmdBdTkF7XM9wiqwUUsRE0XY4Cb1zuLDCxBHOB5dSsqfy 92mBmhcXyQ== ) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	No DS records found for epfl.ch in the ch zone
	Query to stisun2.epfl.ch for epfl.ch/DNSKEY
	Received 90 bytes from 128.178.15.7
	;; Response received from [128.178.15.7] 90 octets ;; HEADER SECTION ;; id = 57495 ;; 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. 79595045 ;serial 1200 ;refresh 450 ;retry 3600000 ;expire 3600 ;minimum ) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	No DNSKEY records found
	Query to stisun1.epfl.ch for epfl.ch/A
	Received 184 bytes from 128.178.15.8
	;; Response received from [128.178.15.8] 184 octets ;; HEADER SECTION ;; id = 22594 ;; 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 = 2 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 (2 records) 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 stisun2.epfl.ch for epfl.ch/SOA
	Received 214 bytes from 128.178.15.7
	;; Response received from [128.178.15.7] 214 octets ;; HEADER SECTION ;; id = 21768 ;; 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 = 2 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. 79595045 ;serial 1200 ;refresh 450 ;retry 3600000 ;expire 3600 ;minimum ) ;; AUTHORITY SECTION (2 records) 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 stisun1.epfl.ch for epfl.ch/A
	Received 184 bytes from 128.178.15.8
	;; Response received from [128.178.15.8] 184 octets ;; HEADER SECTION ;; id = 36216 ;; 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 = 2 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 (2 records) 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 }
	epfl.ch A RR has value 128.178.211.3
	No RRSIGs found

epfl.ch

	Query to stisun2.epfl.ch for epfl.ch/A
	Received 184 bytes from 128.178.15.7
	;; Response received from [128.178.15.7] 184 octets ;; HEADER SECTION ;; id = 50578 ;; 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 = 2 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 (2 records) 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 stisun2.epfl.ch for epfl.ch/A
	Received 184 bytes from 128.178.15.7
	;; Response received from [128.178.15.7] 184 octets ;; HEADER SECTION ;; id = 26943 ;; 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 = 2 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 (2 records) epfl.ch. 86400 IN NS stisun2.epfl.ch. epfl.ch. 86400 IN NS stisun1.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 }
	epfl.ch A RR has value 128.178.211.3
	No RRSIGs found

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