最近阿里 DNS 通过国外 VPS 解析,传递国内 IP 的子网,老是解析到当地,不知道怎么回事。
用 VPS 测试了下,不知道是不是正常的。
[opc@instance-sjc2 ~]$ dig @
223.5.5.5 txt
o-o.myaddr.l.google.com +subnet=27.8.59.1/24
; <<>> DiG 9.11.4-P2-RedHat-9.11.4-26.P2.el7_9.16 <<>> @
223.5.5.5 txt
o-o.myaddr.l.google.com +subnet=27.8.59.1/24
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21080
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; CLIENT-SUBNET: 27.8.59.0/24/24
;; QUESTION SECTION:
;
o-o.myaddr.l.google.com. IN TXT
;; ANSWER SECTION:
o-o.myaddr.l.google.com. 17 IN TXT "47.254.235.11"
;; Query time: 172 msec
;; SERVER: 223.5.5.5#53(223.5.5.5)
;; WHEN: Sat Mar 01 20:40:40 CST 2025
;; MSG SIZE rcvd: 89
[opc@instance-sjc2 ~]$ dig @
223.5.5.5 txt
o-o.myaddr.l.google.com +subnet=27.8.59.1/24
; <<>> DiG 9.11.4-P2-RedHat-9.11.4-26.P2.el7_9.16 <<>> @
223.5.5.5 txt
o-o.myaddr.l.google.com +subnet=27.8.59.1/24
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 51080
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1408
; CLIENT-SUBNET: 27.8.59.0/24/24
;; QUESTION SECTION:
;
o-o.myaddr.l.google.com. IN TXT
;; ANSWER SECTION:
o-o.myaddr.l.google.com. 44 IN TXT "47.254.235.11"
o-o.myaddr.l.google.com. 44 IN TXT "edns0-client-subnet 27.8.0.0/25"
;; Query time: 171 msec
;; SERVER: 223.5.5.5#53(223.5.5.5)
;; WHEN: Sat Mar 01 20:40:41 CST 2025
;; MSG SIZE rcvd: 133