DNSSEC Analyzer

Domain Name:

Time: 2020-09-26 17:17:56 UTC, NTP stratum 4

Analyzing DNSSEC problems for cvut.cz

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 l.root-servers.net for ./DNSKEY
	Received 1139 bytes from 199.7.83.42
	;; Answer received from 199.7.83.42 (1139 bytes) ;; HEADER SECTION ;; id = 8210 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 4 nscount = 0 arcount = 1 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option: ;; QUESTION SECTION (1 record) ;; . IN DNSKEY ;; ANSWER SECTION (4 records) . 172800 IN DNSKEY ( 256 3 8 AwEAAdauOGxLhfAKFTTZwGhBXbk793QKdWIQRjiSftWdusCwkPhNyJrIjwtNffCWXGLlZAbpcs41 4RE3oS1qVwV+AdXsO92SBu5haGlxMUk0NqZO7Xlf84/wrzGZVRRouPo5pNX/CKS8Mv9UOi0olKGC u31dNfh8qCszWZcloLDgeLzSnQSkvFoGe69vNCfh7feESKedkBC2qRz0BZv9+oJI0IY/3D7WEnV0 NOlf8gSHozhfJFJ/ZAKtvw/Q3ogrVJFk0LyVaU/NVtVA5FM4pVMIRID7pfrPi78aAzG7b/Wh/Pce 4jPAIpS3dApq25YkvMuPvfB91NMf9FemKwlp78PBVcM= ) ; Key ID = 46594 . 172800 IN DNSKEY ( 256 3 8 AwEAAfC/6HLClwss6h7rPfoG2cliv4/SPJRd2HPEglRsvKZRbPP2RLfiobeAkczcdqaD5q8loEt1 4lcTgDqwzOISZ3YvSVkM4JRMFwKzcjukKo5CsDVbMmhTD0C0yxWICRQ1M+Y5/XkZAT7mt4cb3fWc N9xgyq1wEXQX+zdLQHrNEVQSiL5SoA5cOtCSoQ45n8bKDXdw/0jjP9Rw1FVKsdzLVkQSrVMm8k30 WUkHm/SK/n/954KENkdQOA6Li2vO9nicQdegyAkDeNJCdPN/p3jEhCTQLyO4AlAmyaPcDHeeo7OX r/VsYu4NTDde9hBuS0zx/rewD+BvSnmnNHNmH2FjUE8= ) ; Key ID = 26116 . 172800 IN DNSKEY ( 257 3 8 AwEAAaz/tAm8yTn4Mfeh5eyI96WSVexTBAvkMgJzkKTOiW1vkIbzxeF3+/4RgWOq7HrxRixHlFlE xOLAJr5emLvN7SWXgnLh4+B5xQlNVz8Og8kvArMtNROxVQuCaSnIDdD5LKyWbRd2n9WGe2R8PzgC mr3EgVLrjyBxWezF0jLHwVN8efS3rCj/EWgvIWgb9tarpVUDK/b58Da+sqqls3eNbuv7pr+eoZG+ SrDK6nWeL3c6H5Apxz7LjVc1uTIdsIXxuOLYA4/ilBmSVIzuDWfdRUfhHdY6+cn8HFRm+2hM8AnX GXws9555KrUB5qihylGa8subX2Nn6UwNR1AkUTV74bU= ) ; Key ID = 20326 . 172800 IN RRSIG ( DNSKEY 8 0 172800 20201010000000 20200919000000 20326 . gNV6AU+66kB5XldvckVd/ldhaWTu0rO589zdyHDODOwQ1murJshvt8cjBw3G3G4xO06I1gCKT2HW IJLEEhhvQSRvowbcIW3EocWtTZjeQvCp4U1449doRAiUblpQi7EIstdOxIzcttvh0VcIRecWV7Fl 3kvBzEhpwX42EKXaWUV58Rrn/43o/bRSgh3XBSDwIuIsZVJiMMvHdgm0a5FM6jNHxuuXT1DLlXgL Qyggm/PFciUKTXAo91f6HiyWGNZY9AfAAlvprPiyFOCjBotvk7F5Bi5ss1p8mxl522t/8UuSKcFz qE1J3U4IisgEjTkyxnbCJqY/vKJcyPU8fCzxEg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option:
	Found 3 DNSKEY records for .
	`. 172800 IN DNSKEY ( 256 3 8 AwEAAdauOGxLhfAKFTTZwGhBXbk793QKdWIQRjiSftWdusCwkPhNyJrIjwtNffCWXGLlZAbpcs41 4RE3oS1qVwV+AdXsO92SBu5haGlxMUk0NqZO7Xlf84/wrzGZVRRouPo5pNX/CKS8Mv9UOi0olKGC u31dNfh8qCszWZcloLDgeLzSnQSkvFoGe69vNCfh7feESKedkBC2qRz0BZv9+oJI0IY/3D7WEnV0 NOlf8gSHozhfJFJ/ZAKtvw/Q3ogrVJFk0LyVaU/NVtVA5FM4pVMIRID7pfrPi78aAzG7b/Wh/Pce 4jPAIpS3dApq25YkvMuPvfB91NMf9FemKwlp78PBVcM= ) ; Key ID = 46594`
	`. 172800 IN DNSKEY ( 256 3 8 AwEAAfC/6HLClwss6h7rPfoG2cliv4/SPJRd2HPEglRsvKZRbPP2RLfiobeAkczcdqaD5q8loEt1 4lcTgDqwzOISZ3YvSVkM4JRMFwKzcjukKo5CsDVbMmhTD0C0yxWICRQ1M+Y5/XkZAT7mt4cb3fWc N9xgyq1wEXQX+zdLQHrNEVQSiL5SoA5cOtCSoQ45n8bKDXdw/0jjP9Rw1FVKsdzLVkQSrVMm8k30 WUkHm/SK/n/954KENkdQOA6Li2vO9nicQdegyAkDeNJCdPN/p3jEhCTQLyO4AlAmyaPcDHeeo7OX r/VsYu4NTDde9hBuS0zx/rewD+BvSnmnNHNmH2FjUE8= ) ; Key ID = 26116`
	`. 172800 IN DNSKEY ( 257 3 8 AwEAAaz/tAm8yTn4Mfeh5eyI96WSVexTBAvkMgJzkKTOiW1vkIbzxeF3+/4RgWOq7HrxRixHlFlE xOLAJr5emLvN7SWXgnLh4+B5xQlNVz8Og8kvArMtNROxVQuCaSnIDdD5LKyWbRd2n9WGe2R8PzgC mr3EgVLrjyBxWezF0jLHwVN8efS3rCj/EWgvIWgb9tarpVUDK/b58Da+sqqls3eNbuv7pr+eoZG+ SrDK6nWeL3c6H5Apxz7LjVc1uTIdsIXxuOLYA4/ilBmSVIzuDWfdRUfhHdY6+cn8HFRm+2hM8AnX GXws9555KrUB5qihylGa8subX2Nn6UwNR1AkUTV74bU= ) ; Key ID = 20326`
	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 20201010000000 20200919000000 20326 . gNV6AU+66kB5XldvckVd/ldhaWTu0rO589zdyHDODOwQ1murJshvt8cjBw3G3G4xO06I1gCKT2HW IJLEEhhvQSRvowbcIW3EocWtTZjeQvCp4U1449doRAiUblpQi7EIstdOxIzcttvh0VcIRecWV7Fl 3kvBzEhpwX42EKXaWUV58Rrn/43o/bRSgh3XBSDwIuIsZVJiMMvHdgm0a5FM6jNHxuuXT1DLlXgL Qyggm/PFciUKTXAo91f6HiyWGNZY9AfAAlvprPiyFOCjBotvk7F5Bi5ss1p8mxl522t/8UuSKcFz qE1J3U4IisgEjTkyxnbCJqY/vKJcyPU8fCzxEg== )`
	RRSIG=20326 and DNSKEY=20326/SEP verifies the DNSKEY RRset
	DNSKEY=46594 is now in the chain-of-trust
	DNSKEY=26116 is now in the chain-of-trust
	Query to a.root-servers.net for cvut.cz/A
	Received 618 bytes from 198.41.0.4
	;; Answer received from 198.41.0.4 (618 bytes) ;; HEADER SECTION ;; id = 32546 ;; qr = 1 aa = 0 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 0 nscount = 6 arcount = 9 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option: ;; QUESTION SECTION (1 record) ;; cvut.cz. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (6 records) cz. 172800 IN NS b.ns.nic.cz. cz. 172800 IN NS c.ns.nic.cz. cz. 172800 IN NS d.ns.nic.cz. cz. 172800 IN NS a.ns.nic.cz. cz. 86400 IN DS ( 20237 13 2 cff0f3ecdbc529c1f0031ba1840bfb835853b9209ed1e508fff48451d7b778e2 ) cz. 86400 IN RRSIG ( DS 8 1 86400 20201009170000 20200926160000 46594 . sIZ+PI1NK4iXqE/BXxdYPETN1C8yY3EFMfmmjkBcUTCGS63WP3hdGcnRZkGKFtktGfulYTRuntVR q6bA6ywAiX0Flx9n3kkuSEBR4si4wk3r+blokZPTPL5q506EyH8dLFPRhUjxMTbTfT8C5KNt3L69 Z+bIlHvtoRQKIIdpaDIV0aE95QYYy/1wMYrQm2339HdodrYwjM+kzphami+8Zv39fRfphq6usYqB ZfkD2gtjdedoRYVZbUtaqvVrHe8SwgZm6FB9VhfSJmX9pJ7Omk/XPxoEEGhBMn1OSWYAuMz1kFhK fjOhw25DU+59n4WZeH8i6p5ojyTQ3qifpasDbA== ) ;; ADDITIONAL SECTION (9 records) b.ns.nic.cz. 172800 IN A 194.0.13.1 b.ns.nic.cz. 172800 IN AAAA 2001:678:10::1 c.ns.nic.cz. 172800 IN A 194.0.14.1 c.ns.nic.cz. 172800 IN AAAA 2001:678:11::1 d.ns.nic.cz. 172800 IN A 193.29.206.1 d.ns.nic.cz. 172800 IN AAAA 2001:678:1::1 a.ns.nic.cz. 172800 IN A 194.0.12.1 a.ns.nic.cz. 172800 IN AAAA 2001:678:f::1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option:
	Query to g.root-servers.net for cz/DNSKEY
	Received 613 bytes from 192.112.36.4
	;; Answer received from 192.112.36.4 (613 bytes) ;; HEADER SECTION ;; id = 15236 ;; qr = 1 aa = 0 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 0 nscount = 6 arcount = 9 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option: ;; QUESTION SECTION (1 record) ;; cz. IN DNSKEY ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (6 records) cz. 172800 IN NS b.ns.nic.cz. cz. 172800 IN NS d.ns.nic.cz. cz. 172800 IN NS a.ns.nic.cz. cz. 172800 IN NS c.ns.nic.cz. cz. 86400 IN DS ( 20237 13 2 cff0f3ecdbc529c1f0031ba1840bfb835853b9209ed1e508fff48451d7b778e2 ) cz. 86400 IN RRSIG ( DS 8 1 86400 20201009170000 20200926160000 46594 . sIZ+PI1NK4iXqE/BXxdYPETN1C8yY3EFMfmmjkBcUTCGS63WP3hdGcnRZkGKFtktGfulYTRuntVR q6bA6ywAiX0Flx9n3kkuSEBR4si4wk3r+blokZPTPL5q506EyH8dLFPRhUjxMTbTfT8C5KNt3L69 Z+bIlHvtoRQKIIdpaDIV0aE95QYYy/1wMYrQm2339HdodrYwjM+kzphami+8Zv39fRfphq6usYqB ZfkD2gtjdedoRYVZbUtaqvVrHe8SwgZm6FB9VhfSJmX9pJ7Omk/XPxoEEGhBMn1OSWYAuMz1kFhK fjOhw25DU+59n4WZeH8i6p5ojyTQ3qifpasDbA== ) ;; ADDITIONAL SECTION (9 records) a.ns.nic.cz. 172800 IN A 194.0.12.1 b.ns.nic.cz. 172800 IN A 194.0.13.1 c.ns.nic.cz. 172800 IN A 194.0.14.1 d.ns.nic.cz. 172800 IN A 193.29.206.1 a.ns.nic.cz. 172800 IN AAAA 2001:678:f::1 b.ns.nic.cz. 172800 IN AAAA 2001:678:10::1 c.ns.nic.cz. 172800 IN AAAA 2001:678:11::1 d.ns.nic.cz. 172800 IN AAAA 2001:678:1::1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option:
	Found child zone cz

	Checking DS between . and cz
	Query to b.root-servers.net for cz/DS
	Received 366 bytes from 199.9.14.201
	;; Answer received from 199.9.14.201 (366 bytes) ;; HEADER SECTION ;; id = 34176 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 2 nscount = 0 arcount = 1 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option: ;; QUESTION SECTION (1 record) ;; cz. IN DS ;; ANSWER SECTION (2 records) cz. 86400 IN DS ( 20237 13 2 cff0f3ecdbc529c1f0031ba1840bfb835853b9209ed1e508fff48451d7b778e2 ) cz. 86400 IN RRSIG ( DS 8 1 86400 20201009170000 20200926160000 46594 . sIZ+PI1NK4iXqE/BXxdYPETN1C8yY3EFMfmmjkBcUTCGS63WP3hdGcnRZkGKFtktGfulYTRuntVR q6bA6ywAiX0Flx9n3kkuSEBR4si4wk3r+blokZPTPL5q506EyH8dLFPRhUjxMTbTfT8C5KNt3L69 Z+bIlHvtoRQKIIdpaDIV0aE95QYYy/1wMYrQm2339HdodrYwjM+kzphami+8Zv39fRfphq6usYqB ZfkD2gtjdedoRYVZbUtaqvVrHe8SwgZm6FB9VhfSJmX9pJ7Omk/XPxoEEGhBMn1OSWYAuMz1kFhK fjOhw25DU+59n4WZeH8i6p5ojyTQ3qifpasDbA== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option:
	Found 1 DS records for cz in the . zone
	DS=20237/SHA-256 has algorithm ECDSAP256SHA256
	Found 1 RRSIGs over DS RRset
	`cz. 86400 IN RRSIG ( DS 8 1 86400 20201009170000 20200926160000 46594 . sIZ+PI1NK4iXqE/BXxdYPETN1C8yY3EFMfmmjkBcUTCGS63WP3hdGcnRZkGKFtktGfulYTRuntVR q6bA6ywAiX0Flx9n3kkuSEBR4si4wk3r+blokZPTPL5q506EyH8dLFPRhUjxMTbTfT8C5KNt3L69 Z+bIlHvtoRQKIIdpaDIV0aE95QYYy/1wMYrQm2339HdodrYwjM+kzphami+8Zv39fRfphq6usYqB ZfkD2gtjdedoRYVZbUtaqvVrHe8SwgZm6FB9VhfSJmX9pJ7Omk/XPxoEEGhBMn1OSWYAuMz1kFhK fjOhw25DU+59n4WZeH8i6p5ojyTQ3qifpasDbA== )`
	RRSIG=46594 and DNSKEY=46594 verifies the DS RRset
	DS=20237/SHA-256 is now in the chain-of-trust
	`cz. 86400 IN DS ( 20237 13 2 cff0f3ecdbc529c1f0031ba1840bfb835853b9209ed1e508fff48451d7b778e2 )`
	Query to d.ns.nic.cz for cz/DNSKEY
	Timeout querying d.ns.nic.cz/193.29.206.1 for cz/DNSKEY
	All Queries to d.ns.nic.cz for cz/DNSKEY timed out or failed
	Query to c.ns.nic.cz for cz/DNSKEY
	Received 467 bytes from 194.0.14.1
	;; Answer received from 194.0.14.1 (467 bytes) ;; HEADER SECTION ;; id = 39146 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 5 nscount = 0 arcount = 1 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; cz. IN DNSKEY ;; ANSWER SECTION (5 records) cz. 18000 IN DNSKEY ( 256 3 13 Qszugt966BUUNJV6aj9XEgmQa2fJioVQ0JJUMHQiNf39eskkQFG1YbEcYRspgXKwO/e+s595IQq5 JPcXbBhNTw== ) ; Key ID = 35378 cz. 18000 IN DNSKEY ( 256 3 13 /i7+cRfjGzbM62odyI+mv3VCo4jueMei9ujG475Lr1hTGH/n9mGv65Do8QTrTgyQq9dHDW04/DO4 ti/9CEiNCA== ) ; Key ID = 41447 cz. 18000 IN DNSKEY ( 257 3 13 nqzH7xP1QU5UOVy/VvxFSlrB/XgX9JDJzj51PzIj35TXjZTyalTlAT/f7PAfaSD5mEG1N8Vk9NmI 2nxgQqhzDQ== ) ; Key ID = 20237 cz. 18000 IN RRSIG ( DNSKEY 13 1 18000 20200929000000 20200922000000 20237 cz. gO7GL0w7aCJX/Grz/foeVZlsGVr655OiEjhO+AxnRxUn4GG9ok2AErNlGFgO54tqeGaQD9bKH8vC +yj+lp7bOw== ) cz. 18000 IN RRSIG ( DNSKEY 13 1 18000 20201009140054 20200926153532 35378 cz. iwgiX1xAC7b7k8VMxCknyB6xYNxmmocwDk7JiFUwieVHcJbLKVy7g6vFZvwTawjXSZb2jq6mhAK4 a7nZYxIydg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	Found 3 DNSKEY records for cz
	`cz. 18000 IN DNSKEY ( 256 3 13 Qszugt966BUUNJV6aj9XEgmQa2fJioVQ0JJUMHQiNf39eskkQFG1YbEcYRspgXKwO/e+s595IQq5 JPcXbBhNTw== ) ; Key ID = 35378`
	`cz. 18000 IN DNSKEY ( 256 3 13 /i7+cRfjGzbM62odyI+mv3VCo4jueMei9ujG475Lr1hTGH/n9mGv65Do8QTrTgyQq9dHDW04/DO4 ti/9CEiNCA== ) ; Key ID = 41447`
	`cz. 18000 IN DNSKEY ( 257 3 13 nqzH7xP1QU5UOVy/VvxFSlrB/XgX9JDJzj51PzIj35TXjZTyalTlAT/f7PAfaSD5mEG1N8Vk9NmI 2nxgQqhzDQ== ) ; Key ID = 20237`
	DNSKEY=20237/SEP is now in the chain-of-trust
	DS=20237/SHA-256 verifies DNSKEY=20237/SEP
	Found 2 RRSIGs over DNSKEY RRset
	`cz. 18000 IN RRSIG ( DNSKEY 13 1 18000 20200929000000 20200922000000 20237 cz. gO7GL0w7aCJX/Grz/foeVZlsGVr655OiEjhO+AxnRxUn4GG9ok2AErNlGFgO54tqeGaQD9bKH8vC +yj+lp7bOw== )`
	`cz. 18000 IN RRSIG ( DNSKEY 13 1 18000 20201009140054 20200926153532 35378 cz. iwgiX1xAC7b7k8VMxCknyB6xYNxmmocwDk7JiFUwieVHcJbLKVy7g6vFZvwTawjXSZb2jq6mhAK4 a7nZYxIydg== )`
	RRSIG=20237 and DNSKEY=20237/SEP verifies the DNSKEY RRset
	RRSIG=35378 and DNSKEY=35378 verifies the DNSKEY RRset
	DNSKEY=35378 is now in the chain-of-trust
	DNSKEY=41447 is now in the chain-of-trust
	Query to d.ns.nic.cz for cvut.cz/A
	Received 305 bytes from 193.29.206.1
	;; Answer received from 193.29.206.1 (305 bytes) ;; HEADER SECTION ;; id = 24854 ;; qr = 1 aa = 0 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 0 nscount = 4 arcount = 5 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; cvut.cz. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (4 records) cvut.cz. 3600 IN NS ns.cvut.cz. cvut.cz. 3600 IN NS nss.cvut.cz. cvut.cz. 3600 IN DS ( 41860 13 2 2311d5df154638befa68b593c52e6b6c72060e33ff020392fa527b1f4c3bf3b3 ) cvut.cz. 3600 IN RRSIG ( DS 13 2 3600 20201005144402 20200922000419 35378 cz. P3G2MxzuVu7irwEMz/E4LfjVWETnbmftgv0k1s+K0z4ZssBPWB6ny57/GBtr/uAWkVvqLUqsIkVI UGl6JyBPNQ== ) ;; ADDITIONAL SECTION (5 records) ns.cvut.cz. 3600 IN A 147.32.1.20 ns.cvut.cz. 3600 IN AAAA 2001:718:2:2200::100 nss.cvut.cz. 3600 IN A 147.32.1.9 nss.cvut.cz. 3600 IN AAAA 2001:718:2:2200::101 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	Query to a.ns.nic.cz for cvut.cz/DNSKEY
	Received 305 bytes from 194.0.12.1
	;; Answer received from 194.0.12.1 (305 bytes) ;; HEADER SECTION ;; id = 25222 ;; qr = 1 aa = 0 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 0 nscount = 4 arcount = 5 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; cvut.cz. IN DNSKEY ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (4 records) cvut.cz. 3600 IN NS ns.cvut.cz. cvut.cz. 3600 IN NS nss.cvut.cz. cvut.cz. 3600 IN DS ( 41860 13 2 2311d5df154638befa68b593c52e6b6c72060e33ff020392fa527b1f4c3bf3b3 ) cvut.cz. 3600 IN RRSIG ( DS 13 2 3600 20201005144402 20200922000419 35378 cz. P3G2MxzuVu7irwEMz/E4LfjVWETnbmftgv0k1s+K0z4ZssBPWB6ny57/GBtr/uAWkVvqLUqsIkVI UGl6JyBPNQ== ) ;; ADDITIONAL SECTION (5 records) ns.cvut.cz. 3600 IN A 147.32.1.20 ns.cvut.cz. 3600 IN AAAA 2001:718:2:2200::100 nss.cvut.cz. 3600 IN A 147.32.1.9 nss.cvut.cz. 3600 IN AAAA 2001:718:2:2200::101 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	Found child zone cvut.cz

cvut.cz

	Checking DS between cz and cvut.cz
	Query to c.ns.nic.cz for cvut.cz/DS
	Received 182 bytes from 194.0.14.1
	;; Answer received from 194.0.14.1 (182 bytes) ;; HEADER SECTION ;; id = 33876 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 2 nscount = 0 arcount = 1 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; cvut.cz. IN DS ;; ANSWER SECTION (2 records) cvut.cz. 3600 IN DS ( 41860 13 2 2311d5df154638befa68b593c52e6b6c72060e33ff020392fa527b1f4c3bf3b3 ) cvut.cz. 3600 IN RRSIG ( DS 13 2 3600 20201005144402 20200922000419 35378 cz. P3G2MxzuVu7irwEMz/E4LfjVWETnbmftgv0k1s+K0z4ZssBPWB6ny57/GBtr/uAWkVvqLUqsIkVI UGl6JyBPNQ== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	Found 1 DS records for cvut.cz in the cz zone
	DS=41860/SHA-256 has algorithm ECDSAP256SHA256
	Found 1 RRSIGs over DS RRset
	`cvut.cz. 3600 IN RRSIG ( DS 13 2 3600 20201005144402 20200922000419 35378 cz. P3G2MxzuVu7irwEMz/E4LfjVWETnbmftgv0k1s+K0z4ZssBPWB6ny57/GBtr/uAWkVvqLUqsIkVI UGl6JyBPNQ== )`
	RRSIG=35378 and DNSKEY=35378 verifies the DS RRset
	DS=41860/SHA-256 is now in the chain-of-trust
	`cvut.cz. 3600 IN DS ( 41860 13 2 2311d5df154638befa68b593c52e6b6c72060e33ff020392fa527b1f4c3bf3b3 )`
	Query to ns.cvut.cz for cvut.cz/DNSKEY
	Received 219 bytes from 147.32.1.20
	;; Answer received from 147.32.1.20 (219 bytes) ;; HEADER SECTION ;; id = 18705 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 2 nscount = 0 arcount = 1 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option: ;; QUESTION SECTION (1 record) ;; cvut.cz. IN DNSKEY ;; ANSWER SECTION (2 records) cvut.cz. 6400 IN DNSKEY ( 257 3 13 +XkJfh9Fh5wGJVpntLyKQRXkrRQhP+kL3lnJ1SQfG3XTjW9WBBknfO37yynPQtat8S+kIuOJZaSg kLmMfS8drQ== ) ; Key ID = 41860 cvut.cz. 6400 IN RRSIG ( DNSKEY 13 2 6400 20201006101057 20200906092151 41860 cvut.cz. LQY2tzxb2fq3qFVkOqgP9lfXkjYvuhEqH8sZpjKonhmQ7wHpaCRuqu5r7MD8Gykx5kIKFfXOd518 uZIX5YFDvw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option:
	Found 1 DNSKEY records for cvut.cz
	`cvut.cz. 6400 IN DNSKEY ( 257 3 13 +XkJfh9Fh5wGJVpntLyKQRXkrRQhP+kL3lnJ1SQfG3XTjW9WBBknfO37yynPQtat8S+kIuOJZaSg kLmMfS8drQ== ) ; Key ID = 41860`
	DNSKEY=41860/SEP is now in the chain-of-trust
	DS=41860/SHA-256 verifies DNSKEY=41860/SEP
	Found 1 RRSIGs over DNSKEY RRset
	`cvut.cz. 6400 IN RRSIG ( DNSKEY 13 2 6400 20201006101057 20200906092151 41860 cvut.cz. LQY2tzxb2fq3qFVkOqgP9lfXkjYvuhEqH8sZpjKonhmQ7wHpaCRuqu5r7MD8Gykx5kIKFfXOd518 uZIX5YFDvw== )`
	RRSIG=41860 and DNSKEY=41860/SEP verifies the DNSKEY RRset
	Query to ns.cvut.cz for cvut.cz/A
	Received 793 bytes from 147.32.1.20
	;; Answer received from 147.32.1.20 (793 bytes) ;; HEADER SECTION ;; id = 45133 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 2 nscount = 3 arcount = 9 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option: ;; QUESTION SECTION (1 record) ;; cvut.cz. IN A ;; ANSWER SECTION (2 records) cvut.cz. 6400 IN A 147.32.3.202 cvut.cz. 6400 IN RRSIG ( A 13 2 6400 20201006020714 20200906020054 41860 cvut.cz. nFxrsHTLrzX1m12mJEakD0fQpULYMsJUcbUcOL21iu/37CDXpZKuRQhSPGhRNB1RX7haoym2dggV +uhpNS+R8w== ) ;; AUTHORITY SECTION (3 records) cvut.cz. 6400 IN NS ns.cvut.cz. cvut.cz. 6400 IN NS nss.cvut.cz. cvut.cz. 6400 IN RRSIG ( NS 13 2 6400 20201006020714 20200906020054 41860 cvut.cz. BLdAh4ZeysGj9nW3LM2X1L/t4eM8pAwfObAr4TID40hqi8mFqyjvKLAJAvFT0ldYus5utYPwEgVV KCbbZM31+Q== ) ;; ADDITIONAL SECTION (9 records) ns.cvut.cz. 6400 IN A 147.32.1.20 nss.cvut.cz. 6400 IN A 147.32.1.9 ns.cvut.cz. 6400 IN AAAA 2001:718:2:2200::100 nss.cvut.cz. 6400 IN AAAA 2001:718:2:2200::101 ns.cvut.cz. 6400 IN RRSIG ( A 13 3 6400 20201022000127 20200921234756 41860 cvut.cz. pdLMUOjgSIioc2yr4bjnKvpyVy8DWU7Bn9GS2D5Mx1QRx01aQidk5A1KfYp05V61IKOCz6LoJfYq QyjmqfvogA== ) ns.cvut.cz. 6400 IN RRSIG ( AAAA 13 3 6400 20201022000127 20200921234756 41860 cvut.cz. l16Rsj+2Lx3FkYK0oUDLzeld8ViIOuEqytz4rD2HrlUMKQhyxMP49mFUWpgB5AaTc3/8gqjxRltK IuT8Nt+p7Q== ) nss.cvut.cz. 6400 IN RRSIG ( A 13 3 6400 20201022000127 20200921234756 41860 cvut.cz. +1gJhMblqIec6Wcpb5iWQedh0Xsjl/SmA3dibjTcSbUuMBCdx2A4Jg1YPLf4g3Vk8TnSZEJbdmqZ SEVflUEjzQ== ) nss.cvut.cz. 6400 IN RRSIG ( AAAA 13 3 6400 20201022000127 20200921234756 41860 cvut.cz. wEQQBlo3ItlqSfz7aS+8OLuFuA0OIf/NlwxaureEMjXQ7AHb1Y+P/QgI0WAdjraKd6uvwrStObiv kjHfsdi5qQ== ) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option:
	cvut.cz is authoritative for cvut.cz
	Found RRSIG signed by cvut.cz zone
	Query to nss.cvut.cz for cvut.cz/SOA
	Received 824 bytes from 147.32.1.9
	;; Answer received from 147.32.1.9 (824 bytes) ;; HEADER SECTION ;; id = 46774 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 2 nscount = 3 arcount = 9 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option: ;; QUESTION SECTION (1 record) ;; cvut.cz. IN SOA ;; ANSWER SECTION (2 records) cvut.cz. 6400 IN SOA ( ns.cvut.cz. hostmaster.cvut.cz. 2448 ;serial 10800 ;refresh 1800 ;retry 1209600 ;expire 86400 ;minimum ) cvut.cz. 6400 IN RRSIG ( SOA 13 2 6400 20201026134420 20200926124420 41860 cvut.cz. tGRkFJEyJBz2DPgs7JDs/DEomAkEEonA1pGTImrXEX8wvwYnuWA7itnazu+oblFphj/IjuQ94kcE Ap/aw7WFPg== ) ;; AUTHORITY SECTION (3 records) cvut.cz. 6400 IN NS ns.cvut.cz. cvut.cz. 6400 IN NS nss.cvut.cz. cvut.cz. 6400 IN RRSIG ( NS 13 2 6400 20201006020714 20200906020054 41860 cvut.cz. BLdAh4ZeysGj9nW3LM2X1L/t4eM8pAwfObAr4TID40hqi8mFqyjvKLAJAvFT0ldYus5utYPwEgVV KCbbZM31+Q== ) ;; ADDITIONAL SECTION (9 records) ns.cvut.cz. 6400 IN A 147.32.1.20 nss.cvut.cz. 6400 IN A 147.32.1.9 ns.cvut.cz. 6400 IN AAAA 2001:718:2:2200::100 nss.cvut.cz. 6400 IN AAAA 2001:718:2:2200::101 ns.cvut.cz. 6400 IN RRSIG ( A 13 3 6400 20201022000127 20200921234756 41860 cvut.cz. pdLMUOjgSIioc2yr4bjnKvpyVy8DWU7Bn9GS2D5Mx1QRx01aQidk5A1KfYp05V61IKOCz6LoJfYq QyjmqfvogA== ) ns.cvut.cz. 6400 IN RRSIG ( AAAA 13 3 6400 20201022000127 20200921234756 41860 cvut.cz. l16Rsj+2Lx3FkYK0oUDLzeld8ViIOuEqytz4rD2HrlUMKQhyxMP49mFUWpgB5AaTc3/8gqjxRltK IuT8Nt+p7Q== ) nss.cvut.cz. 6400 IN RRSIG ( A 13 3 6400 20201022000127 20200921234756 41860 cvut.cz. +1gJhMblqIec6Wcpb5iWQedh0Xsjl/SmA3dibjTcSbUuMBCdx2A4Jg1YPLf4g3Vk8TnSZEJbdmqZ SEVflUEjzQ== ) nss.cvut.cz. 6400 IN RRSIG ( AAAA 13 3 6400 20201022000127 20200921234756 41860 cvut.cz. wEQQBlo3ItlqSfz7aS+8OLuFuA0OIf/NlwxaureEMjXQ7AHb1Y+P/QgI0WAdjraKd6uvwrStObiv kjHfsdi5qQ== ) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option:
	Query to ns.cvut.cz for cvut.cz/SOA
	Received 824 bytes from 147.32.1.20
	;; Answer received from 147.32.1.20 (824 bytes) ;; HEADER SECTION ;; id = 56274 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 2 nscount = 3 arcount = 9 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option: ;; QUESTION SECTION (1 record) ;; cvut.cz. IN SOA ;; ANSWER SECTION (2 records) cvut.cz. 6400 IN SOA ( ns.cvut.cz. hostmaster.cvut.cz. 2448 ;serial 10800 ;refresh 1800 ;retry 1209600 ;expire 86400 ;minimum ) cvut.cz. 6400 IN RRSIG ( SOA 13 2 6400 20201026134420 20200926124420 41860 cvut.cz. tGRkFJEyJBz2DPgs7JDs/DEomAkEEonA1pGTImrXEX8wvwYnuWA7itnazu+oblFphj/IjuQ94kcE Ap/aw7WFPg== ) ;; AUTHORITY SECTION (3 records) cvut.cz. 6400 IN NS ns.cvut.cz. cvut.cz. 6400 IN NS nss.cvut.cz. cvut.cz. 6400 IN RRSIG ( NS 13 2 6400 20201006020714 20200906020054 41860 cvut.cz. BLdAh4ZeysGj9nW3LM2X1L/t4eM8pAwfObAr4TID40hqi8mFqyjvKLAJAvFT0ldYus5utYPwEgVV KCbbZM31+Q== ) ;; ADDITIONAL SECTION (9 records) ns.cvut.cz. 6400 IN A 147.32.1.20 nss.cvut.cz. 6400 IN A 147.32.1.9 ns.cvut.cz. 6400 IN AAAA 2001:718:2:2200::100 nss.cvut.cz. 6400 IN AAAA 2001:718:2:2200::101 ns.cvut.cz. 6400 IN RRSIG ( A 13 3 6400 20201022000127 20200921234756 41860 cvut.cz. pdLMUOjgSIioc2yr4bjnKvpyVy8DWU7Bn9GS2D5Mx1QRx01aQidk5A1KfYp05V61IKOCz6LoJfYq QyjmqfvogA== ) ns.cvut.cz. 6400 IN RRSIG ( AAAA 13 3 6400 20201022000127 20200921234756 41860 cvut.cz. l16Rsj+2Lx3FkYK0oUDLzeld8ViIOuEqytz4rD2HrlUMKQhyxMP49mFUWpgB5AaTc3/8gqjxRltK IuT8Nt+p7Q== ) nss.cvut.cz. 6400 IN RRSIG ( A 13 3 6400 20201022000127 20200921234756 41860 cvut.cz. +1gJhMblqIec6Wcpb5iWQedh0Xsjl/SmA3dibjTcSbUuMBCdx2A4Jg1YPLf4g3Vk8TnSZEJbdmqZ SEVflUEjzQ== ) nss.cvut.cz. 6400 IN RRSIG ( AAAA 13 3 6400 20201022000127 20200921234756 41860 cvut.cz. wEQQBlo3ItlqSfz7aS+8OLuFuA0OIf/NlwxaureEMjXQ7AHb1Y+P/QgI0WAdjraKd6uvwrStObiv kjHfsdi5qQ== ) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option:
	Query to ns.cvut.cz for cvut.cz/A
	Received 793 bytes from 147.32.1.20
	;; Answer received from 147.32.1.20 (793 bytes) ;; HEADER SECTION ;; id = 9029 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 2 nscount = 3 arcount = 9 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option: ;; QUESTION SECTION (1 record) ;; cvut.cz. IN A ;; ANSWER SECTION (2 records) cvut.cz. 6400 IN A 147.32.3.202 cvut.cz. 6400 IN RRSIG ( A 13 2 6400 20201006020714 20200906020054 41860 cvut.cz. nFxrsHTLrzX1m12mJEakD0fQpULYMsJUcbUcOL21iu/37CDXpZKuRQhSPGhRNB1RX7haoym2dggV +uhpNS+R8w== ) ;; AUTHORITY SECTION (3 records) cvut.cz. 6400 IN NS ns.cvut.cz. cvut.cz. 6400 IN NS nss.cvut.cz. cvut.cz. 6400 IN RRSIG ( NS 13 2 6400 20201006020714 20200906020054 41860 cvut.cz. BLdAh4ZeysGj9nW3LM2X1L/t4eM8pAwfObAr4TID40hqi8mFqyjvKLAJAvFT0ldYus5utYPwEgVV KCbbZM31+Q== ) ;; ADDITIONAL SECTION (9 records) ns.cvut.cz. 6400 IN A 147.32.1.20 nss.cvut.cz. 6400 IN A 147.32.1.9 ns.cvut.cz. 6400 IN AAAA 2001:718:2:2200::100 nss.cvut.cz. 6400 IN AAAA 2001:718:2:2200::101 ns.cvut.cz. 6400 IN RRSIG ( A 13 3 6400 20201022000127 20200921234756 41860 cvut.cz. pdLMUOjgSIioc2yr4bjnKvpyVy8DWU7Bn9GS2D5Mx1QRx01aQidk5A1KfYp05V61IKOCz6LoJfYq QyjmqfvogA== ) ns.cvut.cz. 6400 IN RRSIG ( AAAA 13 3 6400 20201022000127 20200921234756 41860 cvut.cz. l16Rsj+2Lx3FkYK0oUDLzeld8ViIOuEqytz4rD2HrlUMKQhyxMP49mFUWpgB5AaTc3/8gqjxRltK IuT8Nt+p7Q== ) nss.cvut.cz. 6400 IN RRSIG ( A 13 3 6400 20201022000127 20200921234756 41860 cvut.cz. +1gJhMblqIec6Wcpb5iWQedh0Xsjl/SmA3dibjTcSbUuMBCdx2A4Jg1YPLf4g3Vk8TnSZEJbdmqZ SEVflUEjzQ== ) nss.cvut.cz. 6400 IN RRSIG ( AAAA 13 3 6400 20201022000127 20200921234756 41860 cvut.cz. wEQQBlo3ItlqSfz7aS+8OLuFuA0OIf/NlwxaureEMjXQ7AHb1Y+P/QgI0WAdjraKd6uvwrStObiv kjHfsdi5qQ== ) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option:
	cvut.cz A RR has value 147.32.3.202
	Found 1 RRSIGs over A RRset
	`cvut.cz. 6400 IN RRSIG ( A 13 2 6400 20201006020714 20200906020054 41860 cvut.cz. nFxrsHTLrzX1m12mJEakD0fQpULYMsJUcbUcOL21iu/37CDXpZKuRQhSPGhRNB1RX7haoym2dggV +uhpNS+R8w== )`
	RRSIG=41860 and DNSKEY=41860/SEP verifies the A RRset

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