DNSSEC Debugger

Domain Name:

Time: 2024-12-08 17:59:13 UTC

Analyzing DNSSEC problems for nic.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 b.root-servers.net for ./DNSKEY
	Received 864 bytes from 170.247.170.2
	;; Response received from [170.247.170.2] 864 octets ;; HEADER SECTION ;; id = 52350 ;; 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 = 3 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; . IN DNSKEY ;; ANSWER SECTION (3 records) . 172800 IN DNSKEY ( 256 3 8 AwEAAc0SunbHdS0KFEyZbYII/+tzsrNzIwurKxmJA+0fhAYlTPA/5LrMGkGEqvvufzM0w/CaVtdm 5eWkZYQcsoSKT5bycx0C4jxnLEb3ZiZUQSqu1rWcKGF1fj/GyDWLkOu7a5h3el+gPmglj/4l4V31 ugNYfqYq84vCB+3D6Sodrd+85KyonnzWJ8cS7aZ57x0d0sGqsAKA+6tRnIXjVNVe7Ro5xJuz8IR7 rOxdzfuRLriN+Z00EL3U5E7s9SISU/hDh7Q7N70W1mLMc1o2+tCRGjEWrw4wmCWMzc1kegbLES/d UOWFvPjJz0+AEeWDhd2GqtXk02BzAhdfeIAEIv68FTs= ) ; keytag 61050 . 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 RRSIG ( DNSKEY 8 0 172800 20241221000000 20241130000000 20326 . Afur/CKj8hp6NpFXod3vI0DPq0Mfb6dXrdNvnqjVxElNIogO2Tnj660bCYKD/39HjMAGn1JhfXN1 8A1bSvEJO/qkfErGf0VtlhgsdjPpzlOufhu/hIkA1TTanRzQNa9rYvPcwdwHgVTA3C4t13wiRMwR spG1W22Mcw9+hnkH/MAcXcbD2hxepUTxxjM7JvoZPl6om973u1rvVnk1RIEUe6wR51OhYNoLe/mj sy5BjM/uDXnHYTYLdau9gYElsvHV9Dogs0Alvgf6kK+z21LeOjjOdziP6xgF0vbNPVR8ovJbvw14 NEwAY4LOaa2XXocwqOjr8URoMrNa/zKP66Othw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 2 DNSKEY records for .
	`. 172800 IN DNSKEY ( 256 3 8 AwEAAc0SunbHdS0KFEyZbYII/+tzsrNzIwurKxmJA+0fhAYlTPA/5LrMGkGEqvvufzM0w/CaVtdm 5eWkZYQcsoSKT5bycx0C4jxnLEb3ZiZUQSqu1rWcKGF1fj/GyDWLkOu7a5h3el+gPmglj/4l4V31 ugNYfqYq84vCB+3D6Sodrd+85KyonnzWJ8cS7aZ57x0d0sGqsAKA+6tRnIXjVNVe7Ro5xJuz8IR7 rOxdzfuRLriN+Z00EL3U5E7s9SISU/hDh7Q7N70W1mLMc1o2+tCRGjEWrw4wmCWMzc1kegbLES/d UOWFvPjJz0+AEeWDhd2GqtXk02BzAhdfeIAEIv68FTs= ) ; keytag 61050`
	`. 172800 IN DNSKEY ( 257 3 8 AwEAAaz/tAm8yTn4Mfeh5eyI96WSVexTBAvkMgJzkKTOiW1vkIbzxeF3+/4RgWOq7HrxRixHlFlE xOLAJr5emLvN7SWXgnLh4+B5xQlNVz8Og8kvArMtNROxVQuCaSnIDdD5LKyWbRd2n9WGe2R8PzgC mr3EgVLrjyBxWezF0jLHwVN8efS3rCj/EWgvIWgb9tarpVUDK/b58Da+sqqls3eNbuv7pr+eoZG+ SrDK6nWeL3c6H5Apxz7LjVc1uTIdsIXxuOLYA4/ilBmSVIzuDWfdRUfhHdY6+cn8HFRm+2hM8AnX GXws9555KrUB5qihylGa8subX2Nn6UwNR1AkUTV74bU= ) ; keytag 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 20241221000000 20241130000000 20326 . Afur/CKj8hp6NpFXod3vI0DPq0Mfb6dXrdNvnqjVxElNIogO2Tnj660bCYKD/39HjMAGn1JhfXN1 8A1bSvEJO/qkfErGf0VtlhgsdjPpzlOufhu/hIkA1TTanRzQNa9rYvPcwdwHgVTA3C4t13wiRMwR spG1W22Mcw9+hnkH/MAcXcbD2hxepUTxxjM7JvoZPl6om973u1rvVnk1RIEUe6wR51OhYNoLe/mj sy5BjM/uDXnHYTYLdau9gYElsvHV9Dogs0Alvgf6kK+z21LeOjjOdziP6xgF0vbNPVR8ovJbvw14 NEwAY4LOaa2XXocwqOjr8URoMrNa/zKP66Othw== )`
	RRSIG=20326 and DNSKEY=20326/SEP verifies the DNSKEY RRset
	DNSKEY=61050 is now in the chain-of-trust
	Query to k.root-servers.net for nic.cz/A
	Received 613 bytes from 193.0.14.129
	;; Response received from [193.0.14.129] 613 octets ;; HEADER SECTION ;; id = 22215 ;; 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 = 6 arcount = 9 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN A ;; 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 20241221170000 20241208160000 61050 . ogSEkk0m9hpSb8NXCzujltyU3wOcZkTSsDSkYpUVs7D1H/NXzzhG/JdWn5n5ubJPjKLNp3oEDwdG i0dEPyODfBf58O5hahYrd+RuUv3NT+lcRgGjFxUC/qkPnjZJNt1xD+hwyHVjcY+E5ovGVhFPIMDG PmQ3PRq5qKAQn23TVliXrvKvLVZBRV2J+fC1I8Wg0H9Ym5lbLrK2NTgyI0WEa7BUNjaIeKrtF24b uAKTF0uOABgdvo2GZSuHiyyfah2sPM47yFR2nyf614hX6hcw5at8WAsGlQTbtexbkq77goiDtJfP r013VFNvvaGjY6QVpNRUS+aORjpxV0fQMIFlVg== ) ;; 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 }
	Query to j.root-servers.net for cz/DNSKEY
	Received 613 bytes from 192.58.128.30
	;; Response received from [192.58.128.30] 613 octets ;; HEADER SECTION ;; id = 10990 ;; 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 = 6 arcount = 9 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1472, ;; "OPTIONS": [ ] ;; } ;; 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 20241221170000 20241208160000 61050 . ogSEkk0m9hpSb8NXCzujltyU3wOcZkTSsDSkYpUVs7D1H/NXzzhG/JdWn5n5ubJPjKLNp3oEDwdG i0dEPyODfBf58O5hahYrd+RuUv3NT+lcRgGjFxUC/qkPnjZJNt1xD+hwyHVjcY+E5ovGVhFPIMDG PmQ3PRq5qKAQn23TVliXrvKvLVZBRV2J+fC1I8Wg0H9Ym5lbLrK2NTgyI0WEa7BUNjaIeKrtF24b uAKTF0uOABgdvo2GZSuHiyyfah2sPM47yFR2nyf614hX6hcw5at8WAsGlQTbtexbkq77goiDtJfP r013VFNvvaGjY6QVpNRUS+aORjpxV0fQMIFlVg== ) ;; 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 }
	Found child zone cz

	Checking DS between . and cz
	Query to l.root-servers.net for cz/DS
	Received 366 bytes from 199.7.83.42
	;; Response received from [199.7.83.42] 366 octets ;; HEADER SECTION ;; id = 42646 ;; qr = 1 aa = 1 tc = 0 rd = 0 opcode = QUERY ;; ra = 0 z = 0 ad = 0 cd = 0 rcode = NOERROR ;; do = 1 co = 0 ;; qdcount = 1 ancount = 2 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 4096, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; cz. IN DS ;; ANSWER SECTION (2 records) cz. 86400 IN DS ( 20237 13 2 cff0f3ecdbc529c1f0031ba1840bfb835853b9209ed1e508fff48451d7b778e2 ) cz. 86400 IN RRSIG ( DS 8 1 86400 20241221170000 20241208160000 61050 . ogSEkk0m9hpSb8NXCzujltyU3wOcZkTSsDSkYpUVs7D1H/NXzzhG/JdWn5n5ubJPjKLNp3oEDwdG i0dEPyODfBf58O5hahYrd+RuUv3NT+lcRgGjFxUC/qkPnjZJNt1xD+hwyHVjcY+E5ovGVhFPIMDG PmQ3PRq5qKAQn23TVliXrvKvLVZBRV2J+fC1I8Wg0H9Ym5lbLrK2NTgyI0WEa7BUNjaIeKrtF24b uAKTF0uOABgdvo2GZSuHiyyfah2sPM47yFR2nyf614hX6hcw5at8WAsGlQTbtexbkq77goiDtJfP r013VFNvvaGjY6QVpNRUS+aORjpxV0fQMIFlVg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	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 20241221170000 20241208160000 61050 . ogSEkk0m9hpSb8NXCzujltyU3wOcZkTSsDSkYpUVs7D1H/NXzzhG/JdWn5n5ubJPjKLNp3oEDwdG i0dEPyODfBf58O5hahYrd+RuUv3NT+lcRgGjFxUC/qkPnjZJNt1xD+hwyHVjcY+E5ovGVhFPIMDG PmQ3PRq5qKAQn23TVliXrvKvLVZBRV2J+fC1I8Wg0H9Ym5lbLrK2NTgyI0WEa7BUNjaIeKrtF24b uAKTF0uOABgdvo2GZSuHiyyfah2sPM47yFR2nyf614hX6hcw5at8WAsGlQTbtexbkq77goiDtJfP r013VFNvvaGjY6QVpNRUS+aORjpxV0fQMIFlVg== )`
	RRSIG=61050 and DNSKEY=61050 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 a.ns.nic.cz for cz/DNSKEY
	Received 289 bytes from 194.0.12.1
	;; Response received from [194.0.12.1] 289 octets ;; HEADER SECTION ;; id = 21488 ;; 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 = 3 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; cz. IN DNSKEY ;; ANSWER SECTION (3 records) cz. 3600 IN DNSKEY ( 256 3 13 LFymYIsyV+19TSF6/EGmc+aOSH0UtblVswJ1WD28nwI/smtiCAdFz0YL1IupMmF+2G+vNwpUiMCl N9ee7wbogw== ) ; keytag 35560 cz. 3600 IN DNSKEY ( 257 3 13 nqzH7xP1QU5UOVy/VvxFSlrB/XgX9JDJzj51PzIj35TXjZTyalTlAT/f7PAfaSD5mEG1N8Vk9NmI 2nxgQqhzDQ== ) ; keytag 20237 cz. 3600 IN RRSIG ( DNSKEY 13 1 3600 20241215182134 20241201165134 20237 cz. Qie9ydQWbAyZf2YU6jkWQoHDz4y03Pf2z69puOUtOnWsYxv885hu1MTond+W3hoTHGlpc3b8t5U4 p711bQL5Jw== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 2 DNSKEY records for cz
	`cz. 3600 IN DNSKEY ( 256 3 13 LFymYIsyV+19TSF6/EGmc+aOSH0UtblVswJ1WD28nwI/smtiCAdFz0YL1IupMmF+2G+vNwpUiMCl N9ee7wbogw== ) ; keytag 35560`
	`cz. 3600 IN DNSKEY ( 257 3 13 nqzH7xP1QU5UOVy/VvxFSlrB/XgX9JDJzj51PzIj35TXjZTyalTlAT/f7PAfaSD5mEG1N8Vk9NmI 2nxgQqhzDQ== ) ; keytag 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 20241215182134 20241201165134 20237 cz. Qie9ydQWbAyZf2YU6jkWQoHDz4y03Pf2z69puOUtOnWsYxv885hu1MTond+W3hoTHGlpc3b8t5U4 p711bQL5Jw== )`
	RRSIG=20237 and DNSKEY=20237/SEP verifies the DNSKEY RRset
	DNSKEY=35560 is now in the chain-of-trust
	Query to b.ns.nic.cz for nic.cz/A
	Received 153 bytes from 194.0.13.1
	;; Response received from [194.0.13.1] 153 octets ;; HEADER SECTION ;; id = 14561 ;; 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) ;; nic.cz. IN A ;; ANSWER SECTION (2 records) nic.cz. 1800 IN A 217.31.205.50 nic.cz. 1800 IN RRSIG ( A 13 2 1800 20241220192554 20241206175554 37142 nic.cz. 8OFWKFxni0EYwTzKISXgySfnj0nOM4dOjP5oP+fBuncHO+FN4fvZqULC9Sbp6vkFAbkKuYAjJa4L dl8yEEJI8g== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	b.ns.nic.cz is authoritative for nic.cz
	Query to d.ns.nic.cz for nic.cz/DNSKEY
	Received 297 bytes from 193.29.206.1
	;; Response received from [193.29.206.1] 297 octets ;; HEADER SECTION ;; id = 51341 ;; 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 = 3 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN DNSKEY ;; ANSWER SECTION (3 records) nic.cz. 1800 IN DNSKEY ( 256 3 13 CjzyJXmICipgq9NBr+eGNKEWfQ/I04JEVIyLHgEGjF+RPKPjXRuGqX4Qpiwdet/aaSTTZyik/m7Z tOHv+eJ4/g== ) ; keytag 37142 nic.cz. 1800 IN DNSKEY ( 257 3 13 tdr7F+UrI+L7C0GX6m/23XD8NNvhd+MdkaXsnbG6rr2Nyzpr28p1QfqIGsvEt+3rK9TgrG8dmGxX GNIxhOtF8g== ) ; keytag 3735 nic.cz. 1800 IN RRSIG ( DNSKEY 13 2 1800 20241220205554 20241206192554 3735 nic.cz. fpK1KJBwrqoejN/x4uR5rGtpwzSGleJxxfntvk/sgDenCStlkC1rCTsAif+jQEcr4E0MPBEDWUuA lBtM63wfzg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found child zone nic.cz
	Attempting to learn nameservers for nic.cz
	Query to b.ns.nic.cz for nic.cz/NS
	Received 932 bytes from 194.0.13.1
	;; Response received from [194.0.13.1] 932 octets ;; HEADER SECTION ;; id = 28249 ;; 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 = 13 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN NS ;; ANSWER SECTION (4 records) nic.cz. 1800 IN NS a.ns.nic.cz. nic.cz. 1800 IN NS b.ns.nic.cz. nic.cz. 1800 IN NS d.ns.nic.cz. nic.cz. 1800 IN RRSIG ( NS 13 2 1800 20241220192554 20241206175554 37142 nic.cz. i4FHig4RfESnkgVTDYLafilLRMJCUryKDxA0fiwipltC6l8ysA6j33XnJNOB3i0YrCQRA/P9QltF 3XrgdSJZOg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (13 records) a.ns.nic.cz. 1800 IN A 194.0.12.1 a.ns.nic.cz. 1800 IN AAAA 2001:678:f::1 b.ns.nic.cz. 1800 IN A 194.0.13.1 b.ns.nic.cz. 1800 IN AAAA 2001:678:10::1 d.ns.nic.cz. 1800 IN A 193.29.206.1 d.ns.nic.cz. 1800 IN AAAA 2001:678:1::1 a.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20241220192554 20241206175554 37142 nic.cz. /AYiQDrM+yUzyn9XNyHDpSEXC6Y6RED0tK9i512juSCczvtTmasO663ksvfbVi0LTmSVrXLKr7LZ F6lDENd9zg== ) a.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20241220192554 20241206175554 37142 nic.cz. FJ6hQweEuzfkaqh7Q/KcjcrUjqiiHHnwTDLyMrFe3RosFflhbRsyfA7+F3O/e9zFpKTnsKVum6qy KL3l+fC8Cg== ) b.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20241220192554 20241206175554 37142 nic.cz. HTbnSgGwz63+W8qxUiXEdT1s3NtjRQTxzB55vg+hzOLNms7C38h7vm9OS1wrEmanux9LPfVyXA+e lBjjOYhG+Q== ) b.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20241220192554 20241206175554 37142 nic.cz. wuDaYlwUEa1MfZd95ecXnpehGAaeqWShwhXSGb3UOOfv2AozO2/vbEwEMoW1F3xTYF3UCJcZygnC 0LGtySOldw== ) d.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20241220192554 20241206175554 37142 nic.cz. 7ZcU8VZW7rMTsuY9x7bLAO5e5/B3LsXA5965q8+EvRQn91R5u+KEsr9EW3gq6g6f4twEslXuIbGj DmI5m0D/lw== ) d.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20241220192554 20241206175554 37142 nic.cz. 081Mm464DNOtQ7MjhnmKPUOdZlZdbAFcYrfnRLBITqbDeu3fFqWaKaV3r/3dxW1AZvoo79fEqcaT IwpGu6F8Ng== ) ;; { "EDNS-VERSION": 0 }
	Found nic.cz nameservers: a.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz

nic.cz

	Checking DS between cz and nic.cz
	Query to c.ns.nic.cz for nic.cz/DS
	Received 181 bytes from 194.0.14.1
	;; Response received from [194.0.14.1] 181 octets ;; HEADER SECTION ;; id = 50848 ;; 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) ;; nic.cz. IN DS ;; ANSWER SECTION (2 records) nic.cz. 3600 IN DS ( 3735 13 2 990f6bf153905f5bc64a6898954147600b74d1a90af44ed5da6437ebed50fbd8 ) nic.cz. 3600 IN RRSIG ( DS 13 2 3600 20241215162134 20241201145134 35560 cz. yRClVXKVldODN8lvM5YVFo7wZtqM0zqtKZqGgYCBeM56dOZ2tTwSqDkB48zcDDbiMZePj9yS5eZi YHPiNwoyDA== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 1 DS records for nic.cz in the cz zone
	DS=3735/SHA-256 has algorithm ECDSAP256SHA256
	Found 1 RRSIGs over DS RRset
	`nic.cz. 3600 IN RRSIG ( DS 13 2 3600 20241215162134 20241201145134 35560 cz. yRClVXKVldODN8lvM5YVFo7wZtqM0zqtKZqGgYCBeM56dOZ2tTwSqDkB48zcDDbiMZePj9yS5eZi YHPiNwoyDA== )`
	RRSIG=35560 and DNSKEY=35560 verifies the DS RRset
	DS=3735/SHA-256 is now in the chain-of-trust
	`nic.cz. 3600 IN DS ( 3735 13 2 990f6bf153905f5bc64a6898954147600b74d1a90af44ed5da6437ebed50fbd8 )`
	Query to a.ns.nic.cz for nic.cz/DNSKEY
	Received 297 bytes from 194.0.12.1
	;; Response received from [194.0.12.1] 297 octets ;; HEADER SECTION ;; id = 64689 ;; 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 = 3 ;; nscount = 0 arcount = 1 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN DNSKEY ;; ANSWER SECTION (3 records) nic.cz. 1800 IN DNSKEY ( 256 3 13 CjzyJXmICipgq9NBr+eGNKEWfQ/I04JEVIyLHgEGjF+RPKPjXRuGqX4Qpiwdet/aaSTTZyik/m7Z tOHv+eJ4/g== ) ; keytag 37142 nic.cz. 1800 IN DNSKEY ( 257 3 13 tdr7F+UrI+L7C0GX6m/23XD8NNvhd+MdkaXsnbG6rr2Nyzpr28p1QfqIGsvEt+3rK9TgrG8dmGxX GNIxhOtF8g== ) ; keytag 3735 nic.cz. 1800 IN RRSIG ( DNSKEY 13 2 1800 20241220205554 20241206192554 3735 nic.cz. fpK1KJBwrqoejN/x4uR5rGtpwzSGleJxxfntvk/sgDenCStlkC1rCTsAif+jQEcr4E0MPBEDWUuA lBtM63wfzg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Found 2 DNSKEY records for nic.cz
	`nic.cz. 1800 IN DNSKEY ( 256 3 13 CjzyJXmICipgq9NBr+eGNKEWfQ/I04JEVIyLHgEGjF+RPKPjXRuGqX4Qpiwdet/aaSTTZyik/m7Z tOHv+eJ4/g== ) ; keytag 37142`
	`nic.cz. 1800 IN DNSKEY ( 257 3 13 tdr7F+UrI+L7C0GX6m/23XD8NNvhd+MdkaXsnbG6rr2Nyzpr28p1QfqIGsvEt+3rK9TgrG8dmGxX GNIxhOtF8g== ) ; keytag 3735`
	DNSKEY=3735/SEP is now in the chain-of-trust
	DS=3735/SHA-256 verifies DNSKEY=3735/SEP
	Found 1 RRSIGs over DNSKEY RRset
	`nic.cz. 1800 IN RRSIG ( DNSKEY 13 2 1800 20241220205554 20241206192554 3735 nic.cz. fpK1KJBwrqoejN/x4uR5rGtpwzSGleJxxfntvk/sgDenCStlkC1rCTsAif+jQEcr4E0MPBEDWUuA lBtM63wfzg== )`
	RRSIG=3735 and DNSKEY=3735/SEP verifies the DNSKEY RRset
	DNSKEY=37142 is now in the chain-of-trust
	Query to b.ns.nic.cz for nic.cz/A
	Received 153 bytes from 194.0.13.1
	;; Response received from [194.0.13.1] 153 octets ;; HEADER SECTION ;; id = 27652 ;; 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) ;; nic.cz. IN A ;; ANSWER SECTION (2 records) nic.cz. 1800 IN A 217.31.205.50 nic.cz. 1800 IN RRSIG ( A 13 2 1800 20241220192554 20241206175554 37142 nic.cz. 8OFWKFxni0EYwTzKISXgySfnj0nOM4dOjP5oP+fBuncHO+FN4fvZqULC9Sbp6vkFAbkKuYAjJa4L dl8yEEJI8g== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	b.ns.nic.cz is authoritative for nic.cz
	Found RRSIG signed by nic.cz zone
	Query to d.ns.nic.cz for nic.cz/SOA
	Received 1087 bytes from 193.29.206.1
	;; Response received from [193.29.206.1] 1087 octets ;; HEADER SECTION ;; id = 12963 ;; 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 = 4 arcount = 13 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN SOA ;; ANSWER SECTION (2 records) nic.cz. 1800 IN SOA ( a.ns.nic.cz. hostmaster.nic.cz. 1733583688 ;serial 14400 ;refresh 3600 ;retry 1209600 ;expire 7200 ;minimum ) nic.cz. 1800 IN RRSIG ( SOA 13 2 1800 20241221150128 20241207133128 37142 nic.cz. 94k1jQoG1GeAL3/ecCVDlzKqfL7gYetlZvMG6eUx02H56D5ML2cf7gahFt5N7kLcYzlsI8sfSxO5 gNInB42oNg== ) ;; AUTHORITY SECTION (4 records) nic.cz. 1800 IN NS b.ns.nic.cz. nic.cz. 1800 IN NS a.ns.nic.cz. nic.cz. 1800 IN NS d.ns.nic.cz. nic.cz. 1800 IN RRSIG ( NS 13 2 1800 20241220192554 20241206175554 37142 nic.cz. i4FHig4RfESnkgVTDYLafilLRMJCUryKDxA0fiwipltC6l8ysA6j33XnJNOB3i0YrCQRA/P9QltF 3XrgdSJZOg== ) ;; ADDITIONAL SECTION (13 records) a.ns.nic.cz. 1800 IN A 194.0.12.1 b.ns.nic.cz. 1800 IN A 194.0.13.1 d.ns.nic.cz. 1800 IN A 193.29.206.1 a.ns.nic.cz. 1800 IN AAAA 2001:678:f::1 b.ns.nic.cz. 1800 IN AAAA 2001:678:10::1 d.ns.nic.cz. 1800 IN AAAA 2001:678:1::1 a.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20241220192554 20241206175554 37142 nic.cz. /AYiQDrM+yUzyn9XNyHDpSEXC6Y6RED0tK9i512juSCczvtTmasO663ksvfbVi0LTmSVrXLKr7LZ F6lDENd9zg== ) a.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20241220192554 20241206175554 37142 nic.cz. FJ6hQweEuzfkaqh7Q/KcjcrUjqiiHHnwTDLyMrFe3RosFflhbRsyfA7+F3O/e9zFpKTnsKVum6qy KL3l+fC8Cg== ) b.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20241220192554 20241206175554 37142 nic.cz. HTbnSgGwz63+W8qxUiXEdT1s3NtjRQTxzB55vg+hzOLNms7C38h7vm9OS1wrEmanux9LPfVyXA+e lBjjOYhG+Q== ) b.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20241220192554 20241206175554 37142 nic.cz. wuDaYlwUEa1MfZd95ecXnpehGAaeqWShwhXSGb3UOOfv2AozO2/vbEwEMoW1F3xTYF3UCJcZygnC 0LGtySOldw== ) d.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20241220192554 20241206175554 37142 nic.cz. 7ZcU8VZW7rMTsuY9x7bLAO5e5/B3LsXA5965q8+EvRQn91R5u+KEsr9EW3gq6g6f4twEslXuIbGj DmI5m0D/lw== ) d.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20241220192554 20241206175554 37142 nic.cz. 081Mm464DNOtQ7MjhnmKPUOdZlZdbAFcYrfnRLBITqbDeu3fFqWaKaV3r/3dxW1AZvoo79fEqcaT IwpGu6F8Ng== ) ;; { "EDNS-VERSION": 0 }
	Query to a.ns.nic.cz for nic.cz/SOA
	Received 189 bytes from 194.0.12.1
	;; Response received from [194.0.12.1] 189 octets ;; HEADER SECTION ;; id = 62446 ;; 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) ;; nic.cz. IN SOA ;; ANSWER SECTION (2 records) nic.cz. 1800 IN SOA ( a.ns.nic.cz. hostmaster.nic.cz. 1733583688 ;serial 14400 ;refresh 3600 ;retry 1209600 ;expire 7200 ;minimum ) nic.cz. 1800 IN RRSIG ( SOA 13 2 1800 20241221150128 20241207133128 37142 nic.cz. 94k1jQoG1GeAL3/ecCVDlzKqfL7gYetlZvMG6eUx02H56D5ML2cf7gahFt5N7kLcYzlsI8sfSxO5 gNInB42oNg== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	Query to b.ns.nic.cz for nic.cz/A
	Received 153 bytes from 194.0.13.1
	;; Response received from [194.0.13.1] 153 octets ;; HEADER SECTION ;; id = 48623 ;; 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) ;; nic.cz. IN A ;; ANSWER SECTION (2 records) nic.cz. 1800 IN A 217.31.205.50 nic.cz. 1800 IN RRSIG ( A 13 2 1800 20241220192554 20241206175554 37142 nic.cz. 8OFWKFxni0EYwTzKISXgySfnj0nOM4dOjP5oP+fBuncHO+FN4fvZqULC9Sbp6vkFAbkKuYAjJa4L dl8yEEJI8g== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	nic.cz A RR has value 217.31.205.50
	Found 1 RRSIGs over A RRset
	`nic.cz. 1800 IN RRSIG ( A 13 2 1800 20241220192554 20241206175554 37142 nic.cz. 8OFWKFxni0EYwTzKISXgySfnj0nOM4dOjP5oP+fBuncHO+FN4fvZqULC9Sbp6vkFAbkKuYAjJa4L dl8yEEJI8g== )`
	RRSIG=37142 and DNSKEY=37142 verifies the A RRset

nic.cz

	Query to d.ns.nic.cz for nic.cz/A
	Received 1056 bytes from 193.29.206.1
	;; Response received from [193.29.206.1] 1056 octets ;; HEADER SECTION ;; id = 1851 ;; 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 = 4 arcount = 13 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN A ;; ANSWER SECTION (2 records) nic.cz. 1800 IN A 217.31.205.50 nic.cz. 1800 IN RRSIG ( A 13 2 1800 20241220192554 20241206175554 37142 nic.cz. 8OFWKFxni0EYwTzKISXgySfnj0nOM4dOjP5oP+fBuncHO+FN4fvZqULC9Sbp6vkFAbkKuYAjJa4L dl8yEEJI8g== ) ;; AUTHORITY SECTION (4 records) nic.cz. 1800 IN NS a.ns.nic.cz. nic.cz. 1800 IN NS b.ns.nic.cz. nic.cz. 1800 IN NS d.ns.nic.cz. nic.cz. 1800 IN RRSIG ( NS 13 2 1800 20241220192554 20241206175554 37142 nic.cz. i4FHig4RfESnkgVTDYLafilLRMJCUryKDxA0fiwipltC6l8ysA6j33XnJNOB3i0YrCQRA/P9QltF 3XrgdSJZOg== ) ;; ADDITIONAL SECTION (13 records) a.ns.nic.cz. 1800 IN A 194.0.12.1 b.ns.nic.cz. 1800 IN A 194.0.13.1 d.ns.nic.cz. 1800 IN A 193.29.206.1 a.ns.nic.cz. 1800 IN AAAA 2001:678:f::1 b.ns.nic.cz. 1800 IN AAAA 2001:678:10::1 d.ns.nic.cz. 1800 IN AAAA 2001:678:1::1 a.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20241220192554 20241206175554 37142 nic.cz. /AYiQDrM+yUzyn9XNyHDpSEXC6Y6RED0tK9i512juSCczvtTmasO663ksvfbVi0LTmSVrXLKr7LZ F6lDENd9zg== ) a.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20241220192554 20241206175554 37142 nic.cz. FJ6hQweEuzfkaqh7Q/KcjcrUjqiiHHnwTDLyMrFe3RosFflhbRsyfA7+F3O/e9zFpKTnsKVum6qy KL3l+fC8Cg== ) b.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20241220192554 20241206175554 37142 nic.cz. HTbnSgGwz63+W8qxUiXEdT1s3NtjRQTxzB55vg+hzOLNms7C38h7vm9OS1wrEmanux9LPfVyXA+e lBjjOYhG+Q== ) b.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20241220192554 20241206175554 37142 nic.cz. wuDaYlwUEa1MfZd95ecXnpehGAaeqWShwhXSGb3UOOfv2AozO2/vbEwEMoW1F3xTYF3UCJcZygnC 0LGtySOldw== ) d.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20241220192554 20241206175554 37142 nic.cz. 7ZcU8VZW7rMTsuY9x7bLAO5e5/B3LsXA5965q8+EvRQn91R5u+KEsr9EW3gq6g6f4twEslXuIbGj DmI5m0D/lw== ) d.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20241220192554 20241206175554 37142 nic.cz. 081Mm464DNOtQ7MjhnmKPUOdZlZdbAFcYrfnRLBITqbDeu3fFqWaKaV3r/3dxW1AZvoo79fEqcaT IwpGu6F8Ng== ) ;; { "EDNS-VERSION": 0 }
	d.ns.nic.cz is authoritative for nic.cz
	Found RRSIG signed by nic.cz zone
	Query to d.ns.nic.cz for nic.cz/A
	Received 1056 bytes from 193.29.206.1
	;; Response received from [193.29.206.1] 1056 octets ;; HEADER SECTION ;; id = 20284 ;; 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 = 4 arcount = 13 ;; { "EDNS-VERSION": 0, ;; "FLAGS": "8000", ;; "RCODE": 0, ;; "UDPSIZE": 1232, ;; "OPTIONS": [ ] ;; } ;; QUESTION SECTION (1 record) ;; nic.cz. IN A ;; ANSWER SECTION (2 records) nic.cz. 1800 IN A 217.31.205.50 nic.cz. 1800 IN RRSIG ( A 13 2 1800 20241220192554 20241206175554 37142 nic.cz. 8OFWKFxni0EYwTzKISXgySfnj0nOM4dOjP5oP+fBuncHO+FN4fvZqULC9Sbp6vkFAbkKuYAjJa4L dl8yEEJI8g== ) ;; AUTHORITY SECTION (4 records) nic.cz. 1800 IN NS b.ns.nic.cz. nic.cz. 1800 IN NS d.ns.nic.cz. nic.cz. 1800 IN NS a.ns.nic.cz. nic.cz. 1800 IN RRSIG ( NS 13 2 1800 20241220192554 20241206175554 37142 nic.cz. i4FHig4RfESnkgVTDYLafilLRMJCUryKDxA0fiwipltC6l8ysA6j33XnJNOB3i0YrCQRA/P9QltF 3XrgdSJZOg== ) ;; ADDITIONAL SECTION (13 records) a.ns.nic.cz. 1800 IN A 194.0.12.1 b.ns.nic.cz. 1800 IN A 194.0.13.1 d.ns.nic.cz. 1800 IN A 193.29.206.1 a.ns.nic.cz. 1800 IN AAAA 2001:678:f::1 b.ns.nic.cz. 1800 IN AAAA 2001:678:10::1 d.ns.nic.cz. 1800 IN AAAA 2001:678:1::1 a.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20241220192554 20241206175554 37142 nic.cz. /AYiQDrM+yUzyn9XNyHDpSEXC6Y6RED0tK9i512juSCczvtTmasO663ksvfbVi0LTmSVrXLKr7LZ F6lDENd9zg== ) a.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20241220192554 20241206175554 37142 nic.cz. FJ6hQweEuzfkaqh7Q/KcjcrUjqiiHHnwTDLyMrFe3RosFflhbRsyfA7+F3O/e9zFpKTnsKVum6qy KL3l+fC8Cg== ) b.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20241220192554 20241206175554 37142 nic.cz. HTbnSgGwz63+W8qxUiXEdT1s3NtjRQTxzB55vg+hzOLNms7C38h7vm9OS1wrEmanux9LPfVyXA+e lBjjOYhG+Q== ) b.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20241220192554 20241206175554 37142 nic.cz. wuDaYlwUEa1MfZd95ecXnpehGAaeqWShwhXSGb3UOOfv2AozO2/vbEwEMoW1F3xTYF3UCJcZygnC 0LGtySOldw== ) d.ns.nic.cz. 1800 IN RRSIG ( A 13 4 1800 20241220192554 20241206175554 37142 nic.cz. 7ZcU8VZW7rMTsuY9x7bLAO5e5/B3LsXA5965q8+EvRQn91R5u+KEsr9EW3gq6g6f4twEslXuIbGj DmI5m0D/lw== ) d.ns.nic.cz. 1800 IN RRSIG ( AAAA 13 4 1800 20241220192554 20241206175554 37142 nic.cz. 081Mm464DNOtQ7MjhnmKPUOdZlZdbAFcYrfnRLBITqbDeu3fFqWaKaV3r/3dxW1AZvoo79fEqcaT IwpGu6F8Ng== ) ;; { "EDNS-VERSION": 0 }
	nic.cz A RR has value 217.31.205.50
	Found 1 RRSIGs over A RRset
	`nic.cz. 1800 IN RRSIG ( A 13 2 1800 20241220192554 20241206175554 37142 nic.cz. 8OFWKFxni0EYwTzKISXgySfnj0nOM4dOjP5oP+fBuncHO+FN4fvZqULC9Sbp6vkFAbkKuYAjJa4L dl8yEEJI8g== )`
	RRSIG=37142 and DNSKEY=37142 verifies the A RRset

nic.cz

	Query to a.ns.nic.cz for nic.cz/A
	Received 153 bytes from 194.0.12.1
	;; Response received from [194.0.12.1] 153 octets ;; HEADER SECTION ;; id = 57168 ;; 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) ;; nic.cz. IN A ;; ANSWER SECTION (2 records) nic.cz. 1800 IN A 217.31.205.50 nic.cz. 1800 IN RRSIG ( A 13 2 1800 20241220192554 20241206175554 37142 nic.cz. 8OFWKFxni0EYwTzKISXgySfnj0nOM4dOjP5oP+fBuncHO+FN4fvZqULC9Sbp6vkFAbkKuYAjJa4L dl8yEEJI8g== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	a.ns.nic.cz is authoritative for nic.cz
	Found RRSIG signed by nic.cz zone
	Query to a.ns.nic.cz for nic.cz/A
	Received 153 bytes from 194.0.12.1
	;; Response received from [194.0.12.1] 153 octets ;; HEADER SECTION ;; id = 688 ;; 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) ;; nic.cz. IN A ;; ANSWER SECTION (2 records) nic.cz. 1800 IN A 217.31.205.50 nic.cz. 1800 IN RRSIG ( A 13 2 1800 20241220192554 20241206175554 37142 nic.cz. 8OFWKFxni0EYwTzKISXgySfnj0nOM4dOjP5oP+fBuncHO+FN4fvZqULC9Sbp6vkFAbkKuYAjJa4L dl8yEEJI8g== ) ;; AUTHORITY SECTION (0 records) ;; ADDITIONAL SECTION (1 record) ;; { "EDNS-VERSION": 0 }
	nic.cz A RR has value 217.31.205.50
	Found 1 RRSIGs over A RRset
	`nic.cz. 1800 IN RRSIG ( A 13 2 1800 20241220192554 20241206175554 37142 nic.cz. 8OFWKFxni0EYwTzKISXgySfnj0nOM4dOjP5oP+fBuncHO+FN4fvZqULC9Sbp6vkFAbkKuYAjJa4L dl8yEEJI8g== )`
	RRSIG=37142 and DNSKEY=37142 verifies the A RRset

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