DNSSEC Analyzer - fjfi.cvut.cz

Domain Name:

Time: 2021-07-31 16:03:28 UTC, NTP stratum 16

Analyzing DNSSEC problems for fjfi.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 c.root-servers.net for ./DNSKEY
	Received 864 bytes from 192.33.4.12
	;; Response received from 192.33.4.12 (864 octets) ;; HEADER SECTION ;; id = 21375 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 3 nscount = 0 arcount = 1 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; . IN DNSKEY ;; ANSWER SECTION (3 records) . 172800 IN DNSKEY ( 256 3 8 AwEAAbDEyqdwu2fqAwinPCFwALUCWfYYaLrNhnOrMxDorLBYMipEE1btlK1XnigTRMeb0YQ8/LCo pb3CN73hYDhCHFsNk+GtukBB+gWLcg+2FZXbhLXIheQm8x2VfOHy2yYQG+18wjx3HY9Mj/ZEhXbZ NrDMvpFKKVihWXa0/cHNg4ZcIHD9KkMlKzK+my1K/vz8fq5cFCFOu7wgM+kKbOikdcRBm7Uf/wRX ZItFg2uhUijUb56gEN8uCUgmuEw6wQ5ZBuR7UT/FLyyAUeAH87oxF4im2DXK6J+JA7IAs2UHJ16u TqvdserUU8NIosislaXIZCvz+NTDb3SJcxs6bvCikeU= ) ; Key ID = 26838 . 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 20210821000000 20210731000000 20326 . MQCiL1+LRbTdEm3hyrUQOjMurN4QNmB7Up8ahSMS3vC+Waa7ywqKnClMNiZqPJKYuAn3wHZM0kj5 pTF/wASaLJ9duxmcL6Wyi7mugRZE1Pv3RDvp6o4RbroZND9HVnImDxg/GmaJbRxtPuA/dGSp/Iq7 AObJrtgNM81p19Z50Zn89POIr50/7SpuiRZ7xFYhfwIug9pgrHHdNQpQN7UVUJVXMDgtH/IT8ACg vGfoVLXCciPIpKJhwYZXq9nOGBgVxV7/h7aIGkrOryfm2ChvIei3MQANyjiq1QfckaXHpg+iHa4J 6kduZoTR5Pe+E0VFpf8q63kYBaJTshOVVMm3TQ== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	Found 2 DNSKEY records for .
	`. 172800 IN DNSKEY ( 256 3 8 AwEAAbDEyqdwu2fqAwinPCFwALUCWfYYaLrNhnOrMxDorLBYMipEE1btlK1XnigTRMeb0YQ8/LCo pb3CN73hYDhCHFsNk+GtukBB+gWLcg+2FZXbhLXIheQm8x2VfOHy2yYQG+18wjx3HY9Mj/ZEhXbZ NrDMvpFKKVihWXa0/cHNg4ZcIHD9KkMlKzK+my1K/vz8fq5cFCFOu7wgM+kKbOikdcRBm7Uf/wRX ZItFg2uhUijUb56gEN8uCUgmuEw6wQ5ZBuR7UT/FLyyAUeAH87oxF4im2DXK6J+JA7IAs2UHJ16u TqvdserUU8NIosislaXIZCvz+NTDb3SJcxs6bvCikeU= ) ; Key ID = 26838`
	`. 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 20210821000000 20210731000000 20326 . MQCiL1+LRbTdEm3hyrUQOjMurN4QNmB7Up8ahSMS3vC+Waa7ywqKnClMNiZqPJKYuAn3wHZM0kj5 pTF/wASaLJ9duxmcL6Wyi7mugRZE1Pv3RDvp6o4RbroZND9HVnImDxg/GmaJbRxtPuA/dGSp/Iq7 AObJrtgNM81p19Z50Zn89POIr50/7SpuiRZ7xFYhfwIug9pgrHHdNQpQN7UVUJVXMDgtH/IT8ACg vGfoVLXCciPIpKJhwYZXq9nOGBgVxV7/h7aIGkrOryfm2ChvIei3MQANyjiq1QfckaXHpg+iHa4J 6kduZoTR5Pe+E0VFpf8q63kYBaJTshOVVMm3TQ== )`
	RRSIG=20326 and DNSKEY=20326/SEP verifies the DNSKEY RRset
	DNSKEY=26838 is now in the chain-of-trust
	Query to c.root-servers.net for fjfi.cvut.cz/A
	Received 623 bytes from 192.33.4.12
	;; Response received from 192.33.4.12 (623 octets) ;; HEADER SECTION ;; id = 41556 ;; 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: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; fjfi.cvut.cz. IN A ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (6 records) cz. 172800 IN NS c.ns.nic.cz. cz. 172800 IN NS b.ns.nic.cz. cz. 172800 IN NS a.ns.nic.cz. cz. 172800 IN NS d.ns.nic.cz. cz. 86400 IN DS ( 20237 13 2 cff0f3ecdbc529c1f0031ba1840bfb835853b9209ed1e508fff48451d7b778e2 ) cz. 86400 IN RRSIG ( DS 8 1 86400 20210813050000 20210731040000 26838 . WdT3zAy2eEz5RdQVh0pyT6fNEIs+KwrxAadd78+OBpHgfNo+zW2zPx7JneqDMKu/rMuLELmCNaJW 5IHbdz/0eOfPJGVl9lyx05aSw+Nc9uuTD4wu1MldqOW6vJ9cf6vCoMz44iVeFupi/Ud+P2VVBMwV Jo87CfIBIqojAhXSHf9yvseY6dp49KIX5uXeoSvU7m8+QoxoXmJgM3uy1e68UMGmNmOyycmVgwPH hdRkiT8/ck9PE9dSBgLu0CQ7EJe9TyXh02bsFbCOUHwL96/SAUlwcunaXFWuavutZe+0HOp8liVI PHcXXzbUrAJ130321NSZB68/zRfCOFEyWsXBrQ== ) ;; 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: 1232 ;; option:
	Query to l.root-servers.net for cz/DNSKEY
	Received 613 bytes from 199.7.83.42
	;; Response received from 199.7.83.42 (613 octets) ;; HEADER SECTION ;; id = 7365 ;; 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 a.ns.nic.cz. 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. 86400 IN DS ( 20237 13 2 cff0f3ecdbc529c1f0031ba1840bfb835853b9209ed1e508fff48451d7b778e2 ) cz. 86400 IN RRSIG ( DS 8 1 86400 20210813050000 20210731040000 26838 . WdT3zAy2eEz5RdQVh0pyT6fNEIs+KwrxAadd78+OBpHgfNo+zW2zPx7JneqDMKu/rMuLELmCNaJW 5IHbdz/0eOfPJGVl9lyx05aSw+Nc9uuTD4wu1MldqOW6vJ9cf6vCoMz44iVeFupi/Ud+P2VVBMwV Jo87CfIBIqojAhXSHf9yvseY6dp49KIX5uXeoSvU7m8+QoxoXmJgM3uy1e68UMGmNmOyycmVgwPH hdRkiT8/ck9PE9dSBgLu0CQ7EJe9TyXh02bsFbCOUHwL96/SAUlwcunaXFWuavutZe+0HOp8liVI PHcXXzbUrAJ130321NSZB68/zRfCOFEyWsXBrQ== ) ;; 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 c.root-servers.net for cz/DS
	Received 366 bytes from 192.33.4.12
	;; Response received from 192.33.4.12 (366 octets) ;; HEADER SECTION ;; id = 13221 ;; 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) ;; cz. IN DS ;; ANSWER SECTION (2 records) cz. 86400 IN DS ( 20237 13 2 cff0f3ecdbc529c1f0031ba1840bfb835853b9209ed1e508fff48451d7b778e2 ) cz. 86400 IN RRSIG ( DS 8 1 86400 20210813050000 20210731040000 26838 . WdT3zAy2eEz5RdQVh0pyT6fNEIs+KwrxAadd78+OBpHgfNo+zW2zPx7JneqDMKu/rMuLELmCNaJW 5IHbdz/0eOfPJGVl9lyx05aSw+Nc9uuTD4wu1MldqOW6vJ9cf6vCoMz44iVeFupi/Ud+P2VVBMwV Jo87CfIBIqojAhXSHf9yvseY6dp49KIX5uXeoSvU7m8+QoxoXmJgM3uy1e68UMGmNmOyycmVgwPH hdRkiT8/ck9PE9dSBgLu0CQ7EJe9TyXh02bsFbCOUHwL96/SAUlwcunaXFWuavutZe+0HOp8liVI PHcXXzbUrAJ130321NSZB68/zRfCOFEyWsXBrQ== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; 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 20210813050000 20210731040000 26838 . WdT3zAy2eEz5RdQVh0pyT6fNEIs+KwrxAadd78+OBpHgfNo+zW2zPx7JneqDMKu/rMuLELmCNaJW 5IHbdz/0eOfPJGVl9lyx05aSw+Nc9uuTD4wu1MldqOW6vJ9cf6vCoMz44iVeFupi/Ud+P2VVBMwV Jo87CfIBIqojAhXSHf9yvseY6dp49KIX5uXeoSvU7m8+QoxoXmJgM3uy1e68UMGmNmOyycmVgwPH hdRkiT8/ck9PE9dSBgLu0CQ7EJe9TyXh02bsFbCOUHwL96/SAUlwcunaXFWuavutZe+0HOp8liVI PHcXXzbUrAJ130321NSZB68/zRfCOFEyWsXBrQ== )`
	RRSIG=26838 and DNSKEY=26838 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
	Received 289 bytes from 193.29.206.1
	;; Response received from 193.29.206.1 (289 octets) ;; HEADER SECTION ;; id = 30697 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 3 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 (3 records) cz. 3600 IN DNSKEY ( 256 3 13 F75E5ATgIcFeTwfLA90N1NjrS98hW31h/tRFWYsm2DugSnrG5euEphgVXzjvqE5X73DfVBO7gdWt XOWSwAPKSw== ) ; Key ID = 9915 cz. 3600 IN DNSKEY ( 257 3 13 nqzH7xP1QU5UOVy/VvxFSlrB/XgX9JDJzj51PzIj35TXjZTyalTlAT/f7PAfaSD5mEG1N8Vk9NmI 2nxgQqhzDQ== ) ; Key ID = 20237 cz. 3600 IN RRSIG ( DNSKEY 13 1 3600 20210813002134 20210729225134 20237 cz. FY1TWI6x6TZSa2FHeN6gk5ZQ65c1YkTaNFsexfHXDAvSvxyA+RvdJbJuyinKgA30QqhKwN/cdB8k +AUW59+XNg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	Found 2 DNSKEY records for cz
	`cz. 3600 IN DNSKEY ( 256 3 13 F75E5ATgIcFeTwfLA90N1NjrS98hW31h/tRFWYsm2DugSnrG5euEphgVXzjvqE5X73DfVBO7gdWt XOWSwAPKSw== ) ; Key ID = 9915`
	`cz. 3600 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 1 RRSIGs over DNSKEY RRset
	`cz. 3600 IN RRSIG ( DNSKEY 13 1 3600 20210813002134 20210729225134 20237 cz. FY1TWI6x6TZSa2FHeN6gk5ZQ65c1YkTaNFsexfHXDAvSvxyA+RvdJbJuyinKgA30QqhKwN/cdB8k +AUW59+XNg== )`
	RRSIG=20237 and DNSKEY=20237/SEP verifies the DNSKEY RRset
	DNSKEY=9915 is now in the chain-of-trust
	Query to c.ns.nic.cz for fjfi.cvut.cz/A
	Received 310 bytes from 194.0.14.1
	;; Response received from 194.0.14.1 (310 octets) ;; HEADER SECTION ;; id = 26072 ;; 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) ;; fjfi.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 20210812214943 20210729201943 9915 cz. OrzE+9y7Uy+TLlazMuhFVFEp7nBi0iFQp0COm0FtggB7+VXACQATjr4R/Jrnz6yeDcwcrH2/wnhU GwXiFU6mrw== ) ;; 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
	;; Response received from 194.0.12.1 (305 octets) ;; HEADER SECTION ;; id = 26601 ;; 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 20210812214943 20210729201943 9915 cz. OrzE+9y7Uy+TLlazMuhFVFEp7nBi0iFQp0COm0FtggB7+VXACQATjr4R/Jrnz6yeDcwcrH2/wnhU GwXiFU6mrw== ) ;; 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
	;; Response received from 194.0.14.1 (182 octets) ;; HEADER SECTION ;; id = 41045 ;; 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 20210812214943 20210729201943 9915 cz. OrzE+9y7Uy+TLlazMuhFVFEp7nBi0iFQp0COm0FtggB7+VXACQATjr4R/Jrnz6yeDcwcrH2/wnhU GwXiFU6mrw== ) ;; 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 20210812214943 20210729201943 9915 cz. OrzE+9y7Uy+TLlazMuhFVFEp7nBi0iFQp0COm0FtggB7+VXACQATjr4R/Jrnz6yeDcwcrH2/wnhU GwXiFU6mrw== )`
	RRSIG=9915 and DNSKEY=9915 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
	;; Response received from 147.32.1.20 (219 octets) ;; HEADER SECTION ;; id = 61084 ;; 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 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 20210817023232 20210718023038 41860 cvut.cz. XBz9mmcBxPFsGiLl+fwmfnIV9ree5ryUlnaFU8ho4yuERxBvEATK86GCNAqPju1AZV0XaVOOe4aG ii4BqIY43A== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; 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 20210817023232 20210718023038 41860 cvut.cz. XBz9mmcBxPFsGiLl+fwmfnIV9ree5ryUlnaFU8ho4yuERxBvEATK86GCNAqPju1AZV0XaVOOe4aG ii4BqIY43A== )`
	RRSIG=41860 and DNSKEY=41860/SEP verifies the DNSKEY RRset
	Query to ns.cvut.cz for fjfi.cvut.cz/A
	Received 615 bytes from 147.32.1.20
	;; Response received from 147.32.1.20 (615 octets) ;; HEADER SECTION ;; id = 14873 ;; 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 = 3 arcount = 5 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; fjfi.cvut.cz. IN A ;; ANSWER SECTION (5 records) fjfi.cvut.cz. 600 IN A 147.32.25.4 fjfi.cvut.cz. 600 IN A 147.32.22.12 fjfi.cvut.cz. 600 IN A 147.32.9.22 fjfi.cvut.cz. 600 IN A 147.32.9.142 fjfi.cvut.cz. 600 IN RRSIG ( A 13 3 600 20210826100606 20210717094407 38165 fjfi.cvut.cz. NKR8AESH79KVmGfxXQPrWe6fq+gtc2J5Bpw0MonxdPqk/khelYndpSHnOMR3msGm1XOxDVUF2N77 Lel6fVY5jg== ) ;; AUTHORITY SECTION (3 records) fjfi.cvut.cz. 3600 IN NS ns.fjfi.cvut.cz. fjfi.cvut.cz. 3600 IN NS ns.cvut.cz. fjfi.cvut.cz. 3600 IN RRSIG ( NS 13 3 3600 20210902010305 20210724003021 38165 fjfi.cvut.cz. fHxwIUeSgpJtzEbZ3ja7nCZBoE6odAEowijNXnX4mdGLnjygWxfFUqp8e49Dkkti4VmFMZ6cA8Lh ZiakOe7hDw== ) ;; ADDITIONAL SECTION (5 records) ns.fjfi.cvut.cz. 3600 IN A 147.32.9.4 ns.fjfi.cvut.cz. 3600 IN AAAA 2001:718:2:1900::4 ns.fjfi.cvut.cz. 3600 IN RRSIG ( A 13 4 3600 20210901235352 20210723231659 38165 fjfi.cvut.cz. mitiJJ6Pd3Pp3d0dRidlLFe+5C3UdCeIhTPvmctRnR4EjcBOvMrJykIArWEEXAW7dGSPL9LtkDyN va6xHy68vA== ) ns.fjfi.cvut.cz. 3600 IN RRSIG ( AAAA 13 4 3600 20210902001121 20210723233148 38165 fjfi.cvut.cz. q8gchwCeVtrfe37sMe6bbmNo7mLXkS+jIfPXf0tmwWIHm0W38ZBojfkN63HkPx/qL2cCOBQBtp1g TH4DfC4G4g== ) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	ns.cvut.cz is authoritative for fjfi.cvut.cz
	Query to nss.cvut.cz for fjfi.cvut.cz/DNSKEY
	Received 306 bytes from 147.32.1.9
	;; Response received from 147.32.1.9 (306 octets) ;; HEADER SECTION ;; id = 46505 ;; 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 = 5 arcount = 3 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; fjfi.cvut.cz. IN DNSKEY ;; ANSWER SECTION (0 records) ;; AUTHORITY SECTION (5 records) fjfi.cvut.cz. 6400 IN NS ns.cvut.cz. fjfi.cvut.cz. 6400 IN NS ns.fjfi.cvut.cz. fjfi.cvut.cz. 6400 IN DS ( 38165 13 1 e828e7f19a7727f9abc9f21e06829d8a4b3b278b ) fjfi.cvut.cz. 6400 IN DS ( 38165 13 2 7ab800d2cdc2473310082280d01997421f7a2e2ba6665eed566c9185cad86b34 ) fjfi.cvut.cz. 6400 IN RRSIG ( DS 13 3 6400 20210808050621 20210709043756 41860 cvut.cz. 7nYiuF+PCvBPdemD4sA/LNmpqpfbsY2r7C9QFMJPTOct693r9cQ1a5omb3l0KbQ+GYjZRorF0iBN dudwdQInkQ== ) ;; ADDITIONAL SECTION (3 records) ns.fjfi.cvut.cz. 6400 IN A 147.32.9.4 ns.fjfi.cvut.cz. 6400 IN AAAA 2001:718:2:1900::4 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	Found child zone fjfi.cvut.cz

fjfi.cvut.cz

	Checking DS between cvut.cz and fjfi.cvut.cz
	Query to nss.cvut.cz for fjfi.cvut.cz/DS
	Received 228 bytes from 147.32.1.9
	;; Response received from 147.32.1.9 (228 octets) ;; HEADER SECTION ;; id = 10127 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; qdcount = 1 ancount = 3 nscount = 0 arcount = 1 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; fjfi.cvut.cz. IN DS ;; ANSWER SECTION (3 records) fjfi.cvut.cz. 6400 IN DS ( 38165 13 2 7ab800d2cdc2473310082280d01997421f7a2e2ba6665eed566c9185cad86b34 ) fjfi.cvut.cz. 6400 IN DS ( 38165 13 1 e828e7f19a7727f9abc9f21e06829d8a4b3b278b ) fjfi.cvut.cz. 6400 IN RRSIG ( DS 13 3 6400 20210808050621 20210709043756 41860 cvut.cz. 7nYiuF+PCvBPdemD4sA/LNmpqpfbsY2r7C9QFMJPTOct693r9cQ1a5omb3l0KbQ+GYjZRorF0iBN dudwdQInkQ== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	Found 2 DS records for fjfi.cvut.cz in the cvut.cz zone
	DS=38165/SHA-256 has algorithm ECDSAP256SHA256
	DS=38165/SHA-1 has algorithm ECDSAP256SHA256
	Found 1 RRSIGs over DS RRset
	`fjfi.cvut.cz. 6400 IN RRSIG ( DS 13 3 6400 20210808050621 20210709043756 41860 cvut.cz. 7nYiuF+PCvBPdemD4sA/LNmpqpfbsY2r7C9QFMJPTOct693r9cQ1a5omb3l0KbQ+GYjZRorF0iBN dudwdQInkQ== )`
	RRSIG=41860 and DNSKEY=41860/SEP verifies the DS RRset
	DS=38165/SHA-256 is now in the chain-of-trust
	`fjfi.cvut.cz. 6400 IN DS ( 38165 13 2 7ab800d2cdc2473310082280d01997421f7a2e2ba6665eed566c9185cad86b34 )`
	`fjfi.cvut.cz. 6400 IN DS ( 38165 13 1 e828e7f19a7727f9abc9f21e06829d8a4b3b278b )`
	Query to ns.fjfi.cvut.cz for fjfi.cvut.cz/DNSKEY
	Received 229 bytes from 147.32.9.4
	;; Response received from 147.32.9.4 (229 octets) ;; HEADER SECTION ;; id = 34025 ;; 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) ;; fjfi.cvut.cz. IN DNSKEY ;; ANSWER SECTION (2 records) fjfi.cvut.cz. 3600 IN DNSKEY ( 257 3 13 l7MxV52nt39t7MOm671j3UYMUbqGJ2MO6yUFuvdRijXt4wUDnGyY7BesZmxRDt/weAshPRsQOsqr 98S1espMUA== ) ; Key ID = 38165 fjfi.cvut.cz. 3600 IN RRSIG ( DNSKEY 13 3 3600 20210901235352 20210723231659 38165 fjfi.cvut.cz. v9ZDLrNYEJpy1yUaY1KNQ93fkf8ucSOlRCTeqhe8EWCbP6GlC5gUeWLYmBBdfrBNSZuY5VpIoxSQ 4qn2M2NBXw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option:
	Found 1 DNSKEY records for fjfi.cvut.cz
	`fjfi.cvut.cz. 3600 IN DNSKEY ( 257 3 13 l7MxV52nt39t7MOm671j3UYMUbqGJ2MO6yUFuvdRijXt4wUDnGyY7BesZmxRDt/weAshPRsQOsqr 98S1espMUA== ) ; Key ID = 38165`
	DNSKEY=38165/SEP is now in the chain-of-trust
	DS=38165/SHA-256 verifies DNSKEY=38165/SEP
	DS=38165/SHA-1 verifies DNSKEY=38165/SEP
	Found 1 RRSIGs over DNSKEY RRset
	`fjfi.cvut.cz. 3600 IN RRSIG ( DNSKEY 13 3 3600 20210901235352 20210723231659 38165 fjfi.cvut.cz. v9ZDLrNYEJpy1yUaY1KNQ93fkf8ucSOlRCTeqhe8EWCbP6GlC5gUeWLYmBBdfrBNSZuY5VpIoxSQ 4qn2M2NBXw== )`
	RRSIG=38165 and DNSKEY=38165/SEP verifies the DNSKEY RRset
	Query to ns.cvut.cz for fjfi.cvut.cz/A
	Received 615 bytes from 147.32.1.20
	;; Response received from 147.32.1.20 (615 octets) ;; HEADER SECTION ;; id = 13900 ;; 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 = 3 arcount = 5 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; fjfi.cvut.cz. IN A ;; ANSWER SECTION (5 records) fjfi.cvut.cz. 600 IN A 147.32.9.142 fjfi.cvut.cz. 600 IN A 147.32.25.4 fjfi.cvut.cz. 600 IN A 147.32.9.22 fjfi.cvut.cz. 600 IN A 147.32.22.12 fjfi.cvut.cz. 600 IN RRSIG ( A 13 3 600 20210826100606 20210717094407 38165 fjfi.cvut.cz. NKR8AESH79KVmGfxXQPrWe6fq+gtc2J5Bpw0MonxdPqk/khelYndpSHnOMR3msGm1XOxDVUF2N77 Lel6fVY5jg== ) ;; AUTHORITY SECTION (3 records) fjfi.cvut.cz. 3600 IN NS ns.fjfi.cvut.cz. fjfi.cvut.cz. 3600 IN NS ns.cvut.cz. fjfi.cvut.cz. 3600 IN RRSIG ( NS 13 3 3600 20210902010305 20210724003021 38165 fjfi.cvut.cz. fHxwIUeSgpJtzEbZ3ja7nCZBoE6odAEowijNXnX4mdGLnjygWxfFUqp8e49Dkkti4VmFMZ6cA8Lh ZiakOe7hDw== ) ;; ADDITIONAL SECTION (5 records) ns.fjfi.cvut.cz. 3600 IN A 147.32.9.4 ns.fjfi.cvut.cz. 3600 IN AAAA 2001:718:2:1900::4 ns.fjfi.cvut.cz. 3600 IN RRSIG ( A 13 4 3600 20210901235352 20210723231659 38165 fjfi.cvut.cz. mitiJJ6Pd3Pp3d0dRidlLFe+5C3UdCeIhTPvmctRnR4EjcBOvMrJykIArWEEXAW7dGSPL9LtkDyN va6xHy68vA== ) ns.fjfi.cvut.cz. 3600 IN RRSIG ( AAAA 13 4 3600 20210902001121 20210723233148 38165 fjfi.cvut.cz. q8gchwCeVtrfe37sMe6bbmNo7mLXkS+jIfPXf0tmwWIHm0W38ZBojfkN63HkPx/qL2cCOBQBtp1g TH4DfC4G4g== ) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	ns.cvut.cz is authoritative for fjfi.cvut.cz
	Found RRSIG signed by fjfi.cvut.cz zone
	Query to ns.fjfi.cvut.cz for fjfi.cvut.cz/SOA
	Received 593 bytes from 147.32.9.4
	;; Response received from 147.32.9.4 (593 octets) ;; HEADER SECTION ;; id = 20368 ;; 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 = 5 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option: ;; QUESTION SECTION (1 record) ;; fjfi.cvut.cz. IN SOA ;; ANSWER SECTION (2 records) fjfi.cvut.cz. 3600 IN SOA ( ns.fjfi.cvut.cz. vokac.fjfi.cvut.cz. 2008201628 ;serial 10800 ;refresh 1800 ;retry 1209600 ;expire 1800 ;minimum ) fjfi.cvut.cz. 3600 IN RRSIG ( SOA 13 3 3600 20210909144356 20210731134356 38165 fjfi.cvut.cz. 46dfczrz1Qw+EA7WmoZMF51smDwmCNiElc/2AH+S1823yZMRBATSYM9BgLVSiIF5TI8j9Ibfio+m JUimDj0PSQ== ) ;; AUTHORITY SECTION (3 records) fjfi.cvut.cz. 3600 IN NS ns.cvut.cz. fjfi.cvut.cz. 3600 IN NS ns.fjfi.cvut.cz. fjfi.cvut.cz. 3600 IN RRSIG ( NS 13 3 3600 20210902010305 20210724003021 38165 fjfi.cvut.cz. fHxwIUeSgpJtzEbZ3ja7nCZBoE6odAEowijNXnX4mdGLnjygWxfFUqp8e49Dkkti4VmFMZ6cA8Lh ZiakOe7hDw== ) ;; ADDITIONAL SECTION (5 records) ns.fjfi.cvut.cz. 3600 IN A 147.32.9.4 ns.fjfi.cvut.cz. 3600 IN AAAA 2001:718:2:1900::4 ns.fjfi.cvut.cz. 3600 IN RRSIG ( A 13 4 3600 20210901235352 20210723231659 38165 fjfi.cvut.cz. mitiJJ6Pd3Pp3d0dRidlLFe+5C3UdCeIhTPvmctRnR4EjcBOvMrJykIArWEEXAW7dGSPL9LtkDyN va6xHy68vA== ) ns.fjfi.cvut.cz. 3600 IN RRSIG ( AAAA 13 4 3600 20210902001121 20210723233148 38165 fjfi.cvut.cz. q8gchwCeVtrfe37sMe6bbmNo7mLXkS+jIfPXf0tmwWIHm0W38ZBojfkN63HkPx/qL2cCOBQBtp1g TH4DfC4G4g== ) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option:
	Query to ns.cvut.cz for fjfi.cvut.cz/A
	Received 615 bytes from 147.32.1.20
	;; Response received from 147.32.1.20 (615 octets) ;; HEADER SECTION ;; id = 69 ;; 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 = 3 arcount = 5 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option: ;; QUESTION SECTION (1 record) ;; fjfi.cvut.cz. IN A ;; ANSWER SECTION (5 records) fjfi.cvut.cz. 600 IN A 147.32.9.142 fjfi.cvut.cz. 600 IN A 147.32.9.22 fjfi.cvut.cz. 600 IN A 147.32.25.4 fjfi.cvut.cz. 600 IN A 147.32.22.12 fjfi.cvut.cz. 600 IN RRSIG ( A 13 3 600 20210826100606 20210717094407 38165 fjfi.cvut.cz. NKR8AESH79KVmGfxXQPrWe6fq+gtc2J5Bpw0MonxdPqk/khelYndpSHnOMR3msGm1XOxDVUF2N77 Lel6fVY5jg== ) ;; AUTHORITY SECTION (3 records) fjfi.cvut.cz. 3600 IN NS ns.cvut.cz. fjfi.cvut.cz. 3600 IN NS ns.fjfi.cvut.cz. fjfi.cvut.cz. 3600 IN RRSIG ( NS 13 3 3600 20210902010305 20210724003021 38165 fjfi.cvut.cz. fHxwIUeSgpJtzEbZ3ja7nCZBoE6odAEowijNXnX4mdGLnjygWxfFUqp8e49Dkkti4VmFMZ6cA8Lh ZiakOe7hDw== ) ;; ADDITIONAL SECTION (5 records) ns.fjfi.cvut.cz. 3600 IN A 147.32.9.4 ns.fjfi.cvut.cz. 3600 IN AAAA 2001:718:2:1900::4 ns.fjfi.cvut.cz. 3600 IN RRSIG ( A 13 4 3600 20210901235352 20210723231659 38165 fjfi.cvut.cz. mitiJJ6Pd3Pp3d0dRidlLFe+5C3UdCeIhTPvmctRnR4EjcBOvMrJykIArWEEXAW7dGSPL9LtkDyN va6xHy68vA== ) ns.fjfi.cvut.cz. 3600 IN RRSIG ( AAAA 13 4 3600 20210902001121 20210723233148 38165 fjfi.cvut.cz. q8gchwCeVtrfe37sMe6bbmNo7mLXkS+jIfPXf0tmwWIHm0W38ZBojfkN63HkPx/qL2cCOBQBtp1g TH4DfC4G4g== ) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 1232 ;; option:
	fjfi.cvut.cz A RR has value 147.32.9.142
	fjfi.cvut.cz A RR has value 147.32.9.22
	fjfi.cvut.cz A RR has value 147.32.25.4
	fjfi.cvut.cz A RR has value 147.32.22.12
	Found 1 RRSIGs over A RRset
	`fjfi.cvut.cz. 600 IN RRSIG ( A 13 3 600 20210826100606 20210717094407 38165 fjfi.cvut.cz. NKR8AESH79KVmGfxXQPrWe6fq+gtc2J5Bpw0MonxdPqk/khelYndpSHnOMR3msGm1XOxDVUF2N77 Lel6fVY5jg== )`
	RRSIG=38165 and DNSKEY=38165/SEP verifies the A RRset

fjfi.cvut.cz

	Query to ns.fjfi.cvut.cz for fjfi.cvut.cz/A
	Received 615 bytes from 147.32.9.4
	;; Response received from 147.32.9.4 (615 octets) ;; HEADER SECTION ;; id = 54194 ;; 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 = 3 arcount = 5 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option: ;; QUESTION SECTION (1 record) ;; fjfi.cvut.cz. IN A ;; ANSWER SECTION (5 records) fjfi.cvut.cz. 600 IN A 147.32.25.4 fjfi.cvut.cz. 600 IN A 147.32.22.12 fjfi.cvut.cz. 600 IN A 147.32.9.22 fjfi.cvut.cz. 600 IN A 147.32.9.142 fjfi.cvut.cz. 600 IN RRSIG ( A 13 3 600 20210826100606 20210717094407 38165 fjfi.cvut.cz. NKR8AESH79KVmGfxXQPrWe6fq+gtc2J5Bpw0MonxdPqk/khelYndpSHnOMR3msGm1XOxDVUF2N77 Lel6fVY5jg== ) ;; AUTHORITY SECTION (3 records) fjfi.cvut.cz. 3600 IN NS ns.cvut.cz. fjfi.cvut.cz. 3600 IN NS ns.fjfi.cvut.cz. fjfi.cvut.cz. 3600 IN RRSIG ( NS 13 3 3600 20210902010305 20210724003021 38165 fjfi.cvut.cz. fHxwIUeSgpJtzEbZ3ja7nCZBoE6odAEowijNXnX4mdGLnjygWxfFUqp8e49Dkkti4VmFMZ6cA8Lh ZiakOe7hDw== ) ;; ADDITIONAL SECTION (5 records) ns.fjfi.cvut.cz. 3600 IN A 147.32.9.4 ns.fjfi.cvut.cz. 3600 IN AAAA 2001:718:2:1900::4 ns.fjfi.cvut.cz. 3600 IN RRSIG ( A 13 4 3600 20210901235352 20210723231659 38165 fjfi.cvut.cz. mitiJJ6Pd3Pp3d0dRidlLFe+5C3UdCeIhTPvmctRnR4EjcBOvMrJykIArWEEXAW7dGSPL9LtkDyN va6xHy68vA== ) ns.fjfi.cvut.cz. 3600 IN RRSIG ( AAAA 13 4 3600 20210902001121 20210723233148 38165 fjfi.cvut.cz. q8gchwCeVtrfe37sMe6bbmNo7mLXkS+jIfPXf0tmwWIHm0W38ZBojfkN63HkPx/qL2cCOBQBtp1g TH4DfC4G4g== ) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option:
	ns.fjfi.cvut.cz is authoritative for fjfi.cvut.cz
	Found RRSIG signed by fjfi.cvut.cz zone
	Query to ns.fjfi.cvut.cz for fjfi.cvut.cz/A
	Received 615 bytes from 147.32.9.4
	;; Response received from 147.32.9.4 (615 octets) ;; HEADER SECTION ;; id = 8419 ;; 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 = 3 arcount = 5 ;; do = 1 ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option: ;; QUESTION SECTION (1 record) ;; fjfi.cvut.cz. IN A ;; ANSWER SECTION (5 records) fjfi.cvut.cz. 600 IN A 147.32.22.12 fjfi.cvut.cz. 600 IN A 147.32.9.22 fjfi.cvut.cz. 600 IN A 147.32.9.142 fjfi.cvut.cz. 600 IN A 147.32.25.4 fjfi.cvut.cz. 600 IN RRSIG ( A 13 3 600 20210826100606 20210717094407 38165 fjfi.cvut.cz. NKR8AESH79KVmGfxXQPrWe6fq+gtc2J5Bpw0MonxdPqk/khelYndpSHnOMR3msGm1XOxDVUF2N77 Lel6fVY5jg== ) ;; AUTHORITY SECTION (3 records) fjfi.cvut.cz. 3600 IN NS ns.fjfi.cvut.cz. fjfi.cvut.cz. 3600 IN NS ns.cvut.cz. fjfi.cvut.cz. 3600 IN RRSIG ( NS 13 3 3600 20210902010305 20210724003021 38165 fjfi.cvut.cz. fHxwIUeSgpJtzEbZ3ja7nCZBoE6odAEowijNXnX4mdGLnjygWxfFUqp8e49Dkkti4VmFMZ6cA8Lh ZiakOe7hDw== ) ;; ADDITIONAL SECTION (5 records) ns.fjfi.cvut.cz. 3600 IN A 147.32.9.4 ns.fjfi.cvut.cz. 3600 IN AAAA 2001:718:2:1900::4 ns.fjfi.cvut.cz. 3600 IN RRSIG ( A 13 4 3600 20210901235352 20210723231659 38165 fjfi.cvut.cz. mitiJJ6Pd3Pp3d0dRidlLFe+5C3UdCeIhTPvmctRnR4EjcBOvMrJykIArWEEXAW7dGSPL9LtkDyN va6xHy68vA== ) ns.fjfi.cvut.cz. 3600 IN RRSIG ( AAAA 13 4 3600 20210902001121 20210723233148 38165 fjfi.cvut.cz. q8gchwCeVtrfe37sMe6bbmNo7mLXkS+jIfPXf0tmwWIHm0W38ZBojfkN63HkPx/qL2cCOBQBtp1g TH4DfC4G4g== ) ;; EDNS version 0 ;; flags: 8000 ;; rcode: NOERROR ;; size: 4096 ;; option:
	fjfi.cvut.cz A RR has value 147.32.22.12
	fjfi.cvut.cz A RR has value 147.32.9.22
	fjfi.cvut.cz A RR has value 147.32.9.142
	fjfi.cvut.cz A RR has value 147.32.25.4
	Found 1 RRSIGs over A RRset
	`fjfi.cvut.cz. 600 IN RRSIG ( A 13 3 600 20210826100606 20210717094407 38165 fjfi.cvut.cz. NKR8AESH79KVmGfxXQPrWe6fq+gtc2J5Bpw0MonxdPqk/khelYndpSHnOMR3msGm1XOxDVUF2N77 Lel6fVY5jg== )`
	RRSIG=38165 and DNSKEY=38165/SEP verifies the A RRset

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