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; <<>> DiG 9.11.4-P2-RedHat-9.11.4-26.P2.el7_9.16 <<>> cez.cz. mx ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 49506 ;; flags: qr rd ra ad; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;cez.cz. IN MX ;; ANSWER SECTION: cez.cz. 125 IN MX 10 smtp12.cez.cz. cez.cz. 125 IN MX 10 smtp22.cez.cz. cez.cz. 125 IN MX 10 smtp21.cez.cz. cez.cz. 125 IN MX 10 smtp11.cez.cz. ;; Query time: 0 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: So srp 16 19:27:59 CEST 2025 ;; MSG SIZE rcvd: 127
validation failure cez.cz. MX IN: No DNSKEY record [all servers for this domain failed, at zone cez.cz. from 2a01:a040:2004:8100::1 upstream server timeout] for key cez.cz. while building chain of trust
Host cez.cz. not found: 2(SERVFAIL). (error)Hadam, nejaka blokace. Taky to muze byt uplne mimo ten server.. Dokzes to overit?
root@debian-bullseye:~# unbound-host -vDt mx cez.cz. cez.cz. mail is handled by 10 smtp21.cez.cz. (secure) cez.cz. mail is handled by 10 smtp12.cez.cz. (secure) cez.cz. mail is handled by 10 smtp22.cez.cz. (secure) cez.cz. mail is handled by 10 smtp11.cez.cz. (secure) root@debian-bullseye:~# unbound-host -vDt mx nic.cz. nic.cz. mail is handled by 10 mail.nic.cz. (secure) nic.cz. mail is handled by 20 mx.nic.cz. (secure)
netmaster@cez.cz: host smtp21.cez.cz[89.111.73.164] said: 550 #5.1.0 Address rejected. (in reply to RCPT TO command)
Dobry den
https://dnsviz.net/d/cez.cz/dnssec/ hlasi tolik chyb a varovani, ze bych se na jakoukoli cache, ktera to odmitne odpovedet, nehneval:
cez.cz/AAAA has errors; select the "Denial of existence" DNSSEC option to see them. cez.cz/CDS has errors; select the "Denial of existence" DNSSEC option to see them. cez.cz/CNAME has errors; select the "Denial of existence" DNSSEC option to see them. cez.cz/CDNSKEY has errors; select the "Denial of existence" DNSSEC option to see them. 2amnh.1bxz3.cez.cz/A has errors; select the "Denial of existence" DNSSEC option to see them. Warnings (63) RRSIG cez.cz/A alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/A alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/A alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/A alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/A alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/A alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/DNSKEY alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/DNSKEY alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/DNSKEY alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/DNSKEY alg 10, id 35439: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/DNSKEY alg 10, id 35439: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/DNSKEY alg 10, id 35439: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/DNSKEY alg 10, id 35439: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/DNSKEY alg 10, id 35439: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/DNSKEY alg 10, id 35439: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/DNSKEY alg 10, id 35439: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/DNSKEY alg 10, id 35439: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/DNSKEY alg 10, id 35439: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/DNSKEY alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/DNSKEY alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/DNSKEY alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/MX alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/MX alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/MX alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/MX alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/MX alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/NS alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/NS alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/NS alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/NS alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/NS alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/NSEC3PARAM alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/NSEC3PARAM alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/NSEC3PARAM alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/NSEC3PARAM alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/NSEC3PARAM alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/NSEC3PARAM alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/NSEC3PARAM alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/NSEC3PARAM alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/SOA alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/SOA alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/SOA alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/SOA alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/SOA alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/SOA alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/SOA alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/SOA alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/SOA alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/SOA alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/SOA alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/SOA alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/TXT alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/TXT alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/TXT alg 10, id 25490: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/TXT alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/TXT alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. RRSIG cez.cz/TXT alg 10, id 48902: DNSSEC implementers are recommended against implementing signing with DNSSEC algorithm 10 (RSASHA512). See RFC 8624, Sec. 3.1. cez.cz/CDS has warnings; select the "Denial of existence" DNSSEC option to see them. 2amnh.1bxz3.cez.cz/A has warnings; select the "Denial of existence" DNSSEC option to see them. cez.cz/AAAA has warnings; select the "Denial of existence" DNSSEC option to see them. cez.cz/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them. cez.cz/DNSKEY has warnings; select the "Denial of existence" DNSSEC option to see them. cez.cz/CDNSKEY has warnings; select the "Denial of existence" DNSSEC option to see them.
marek
Ano, vsechny "chyby" a warningy souvisi s algoritmem 10, nemelo by to byt smrtelne(ale velikost odpovedi, obzvlaste kdyz jsou tam zrovna dva klice, muze hrat roli).
Nemyslim, ze je pravdepodobne, ze by ksk daval do cznic nekdo jiny, nez cez.
marek
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