My domain is beck.idv.tw. When I want to add @ cname google.com
It will display error：RRset beck.idv.tw. IN CNAME: Conflicts with pre-existing RRset How can I resolve this? Here is the record about beck.idv.tw： [root@ncic poweradmin]# dig +dnssec cname beck.idv.tw @8.8.8.8 ; <<>> DiG 9.9.4-RedHat-9.9.4-73.el7_6 <<>> +dnssec cname beck.idv.tw @ 8.8.8.8 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 15275 ;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 4, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags: do; udp: 512 ;; QUESTION SECTION: ;beck.idv.tw. IN CNAME ;; AUTHORITY SECTION: beck.idv.tw. 1799 IN SOA a.g-dns.com. support.twnoc.net. 2019052206 10800 3600 604800 3600 beck.idv.tw. 1799 IN RRSIG SOA 8 3 3600 20190530000000 20190509000000 51114 beck.idv.tw. bGRiKHT+irtolFYyBF/05PYbSQNat1s4buoaHsUv7NU65i5bpwSUEbck STzn4/r5oPRTb9tqHlbQ+x9oUeHRY7bygnRWhh4sto4nP8QktYzFfy7W 7NCJ+VkfDZB7YCJ1IEVT33yZkw26Gnq9VkWT2Wx+K3nPvmAPLjiBL88z XLU= beck.idv.tw. 3599 IN NSEC beck.idv.tw. NS SOA RRSIG NSEC DNSKEY beck.idv.tw. 3599 IN RRSIG NSEC 8 3 3600 20190530000000 20190509000000 51114 beck.idv.tw. XuoJ/usmfP+wLMyGv8j5jRi/+tQkdQyQYxwApVZI84tO3oPGw6GdbfMg x/gHSfJOCBRJbDBhW+GMWD1lftAlbmq16ZtrBqgZ5kXudzlByKMthpGe qx3UzzjtbR5QC2JsMLX4Eg7Unu/n7o85IS+QeEs3u41a4YI2T0d8EyZU z7I=
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