Hello. The underscore character was an old method for performing QNAME minimisation. Look in the CHANGES file for a note about it and the ARM for more detailed information.
BIND 9.14 is five years old and has been unsupported for a long time. Please update to 9.18 or 9.20, which contain many improvements, bug and security fixes. cheers, Greg On Mon, 31 Mar 2025 at 10:47, Champion Xie <xiejiel...@gmail.com> wrote: > > [root@rancher03 ~]# dig @localhost www.baidu.com a > > ; <<>> DiG 9.14.12 <<>> @localhost www.baidu.com a > ; (2 servers found) > ;; global options: +cmd > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 35287 > ;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1 > > ;; OPT PSEUDOSECTION: > ; EDNS: version: 0, flags:; udp: 4096 > ; COOKIE: 74f8bc0ee313592d6a463b2f67ea63d442364be432ee42b2 (good) > ;; QUESTION SECTION: > ;www.baidu.com. IN A > > ;; ANSWER SECTION: > www.baidu.com. 1200 IN CNAME www.a.shifen.com. > www.a.shifen.com. 120 IN A 110.242.70.57 > www.a.shifen.com. 120 IN A 110.242.69.21 > > ;; Query time: 2507 msec > ;; SERVER: *127.0.0.1#53(127.0.0.1)* > ;; WHEN: Mon Mar 31 17:43:48 CST 2025 > ;; MSG SIZE rcvd: 132 > > > 31-Mar-2025 17:38:31.326 address not available resolving '_.com/A/IN': > 2801:1b8:10::b#53 > 31-Mar-2025 17:38:31.326 address not available resolving '_.com/A/IN': > 2001:500:2f::f#53 > 31-Mar-2025 17:38:31.331 address not available resolving '_.baidu.com/A/IN': > 2001:503:83eb::30#53 > 31-Mar-2025 17:38:31.331 address not available resolving '_.baidu.com/A/IN': > 2001:502:8cc::30#53 > 31-Mar-2025 17:38:31.331 address not available resolving '_.baidu.com/A/IN': > 2001:500:d937::30#53 > 31-Mar-2025 17:38:31.331 address not available resolving '_.baidu.com/A/IN': > 2001:501:b1f9::30#53 > 31-Mar-2025 17:38:31.331 address not available resolving '_.baidu.com/A/IN': > 2001:503:231d::2:30#53 > 31-Mar-2025 17:38:31.331 address not available resolving '_.baidu.com/A/IN': > 2001:503:a83e::2:30#53 > 31-Mar-2025 17:38:31.332 address not available resolving '_.baidu.com/A/IN': > 2001:503:eea3::30#53 > 31-Mar-2025 17:38:31.332 address not available resolving '_.baidu.com/A/IN': > 2001:503:d2d::30#53 > 31-Mar-2025 17:38:31.332 address not available resolving '_.baidu.com/A/IN': > 2001:502:7094::30#53 > 31-Mar-2025 17:38:31.332 address not available resolving '_.baidu.com/A/IN': > 2001:500:856e::30#53 > 31-Mar-2025 17:38:31.332 address not available resolving '_.baidu.com/A/IN': > 2001:502:1ca1::30#53 > 31-Mar-2025 17:38:31.332 address not available resolving '_.baidu.com/A/IN': > 2001:503:d414::30#53 > 31-Mar-2025 17:38:31.333 address not available resolving '_.baidu.com/A/IN': > 2001:503:39c1::30#53 > 31-Mar-2025 17:38:32.120 address not available resolving ' > www.baidu.com/A/IN': 240e:940:603:4:0:ff:b01b:589a#53 > 31-Mar-2025 17:38:32.120 address not available resolving ' > www.baidu.com/A/IN': 240e:bf:b801:1002:0:ff:b024:26de#53 > 31-Mar-2025 17:38:32.124 address not available resolving ' > ns3.baidu.com/AAAA/IN': 2001:501:b1f9::30#53 > 31-Mar-2025 17:38:32.125 address not available resolving ' > ns3.baidu.com/AAAA/IN': 2001:502:1ca1::30#53 > 31-Mar-2025 17:38:33.863 address not available resolving ' > www.a.shifen.com/A/IN': 240e:bf:b801:1006:0:ff:b04f:346b#53 > 31-Mar-2025 17:38:34.803 address not available resolving ' > ns1.a.shifen.com/AAAA/IN': 240e:940:603:a:0:ff:b08d:239d#53 > > -- > Best Regards!! > champion_xie > -- > Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe > from this list > > ISC funds the development of this software with paid support > subscriptions. Contact us at https://www.isc.org/contact/ for more > information. > > > bind-users mailing list > bind-users@lists.isc.org > https://lists.isc.org/mailman/listinfo/bind-users >
-- Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
