[Pdns-users] Conflicts with pre-existing RRset

[葉科貝]

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 at 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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