cl-system.jp. 3600 IN A 160.251.122.192 cl-system.jp. 3600 IN NS dns.cl-system.jp. cl-system.jp. 3600 IN SOA dns.cl-system.jp. root.dns.cl-system.jp. ( 2024072603 ; serial 3600 ; refresh (1 hour) 600 ; retry (10 minutes) 1209600 ; expire (2 weeks) 3600 ; minimum (1 hour) ) cl-system.jp. 3600 IN MX 5 mail.cl-system.jp. cl-system.jp. 3600 IN TXT "v=spf1 a mx a:cl-system.jp ip4:160.251.122.192 ip4:160.251.122.192 ip6:fe80::f816:3eff:fe5b:a37 ?all" cl-system.jp. 3600 IN CAA 0 issuewild "letsencrypt.org"