@
52acca 从成都的 2402:4e00:1701:c000::1 测试 2402:4e00::,基本都是没有缓存,总体在正常范围内吧,应该主要还是用 ipv6 的太少了,缓存命中率太低的原因,且没有支持乐观 dns
```
[root@blog ~]# dig @
2402:4e00:0::2ae4:2e8d
www.lovelyping.com; <<>> DiG 9.18.0 <<>> @
2402:4e00:0::2ae4:2e8d
www.lovelyping.com; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 23442
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; COOKIE: d5dd7fc35a32c667 (echoed)
;; QUESTION SECTION:
;
www.lovelyping.com. IN A
;; ANSWER SECTION:
www.lovelyping.com. 600 IN A 42.193.40.3
;; Query time: 102 msec
;; SERVER: 2402:4e00::2ae4:2e8d#53(2402:4e00:0::2ae4:2e8d) (UDP)
;; WHEN: Tue Aug 06 14:01:42 CST 2024
;; MSG SIZE rcvd: 75
[root@blog ~]# dig @
2402:4e00:0::2ae4:2e8d
www.qq.com; <<>> DiG 9.18.0 <<>> @
2402:4e00:0::2ae4:2e8d
www.qq.com; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42918
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; COOKIE: 8ce1025a22679f2c (echoed)
;; QUESTION SECTION:
;
www.qq.com. IN A
;; ANSWER SECTION:
www.qq.com. 300 IN CNAME
ins-r23tsuuf.ias.tencent-cloud.net.
ins-r23tsuuf.ias.tencent-cloud.net. 120 IN A 109.244.211.81
ins-r23tsuuf.ias.tencent-cloud.net. 120 IN A 109.244.211.100
;; Query time: 174 msec
;; SERVER: 2402:4e00::2ae4:2e8d#53(2402:4e00:0::2ae4:2e8d) (UDP)
;; WHEN: Tue Aug 06 14:01:49 CST 2024
;; MSG SIZE rcvd: 131
[root@blog ~]# dig @
2402:4e00:0::2ae4:2e8d
www.baidu.com; <<>> DiG 9.18.0 <<>> @
2402:4e00:0::2ae4:2e8d
www.baidu.com; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1396
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; COOKIE: 672f6cf8ff8c1704 (echoed)
;; 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 183.2.172.42
www.a.shifen.com. 120 IN A 183.2.172.185
;; Query time: 137 msec
;; SERVER: 2402:4e00::2ae4:2e8d#53(2402:4e00:0::2ae4:2e8d) (UDP)
;; WHEN: Tue Aug 06 14:01:55 CST 2024
;; MSG SIZE rcvd: 113
[root@blog ~]# dig @
2402:4e00:0::2ae4:2e8d
www.sina.com.cn; <<>> DiG 9.18.0 <<>> @
2402:4e00:0::2ae4:2e8d
www.sina.com.cn; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 5085
;; flags: qr rd ra; QUERY: 1, ANSWER: 10, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; COOKIE: 1bd50e8d1afefdcc (echoed)
;; QUESTION SECTION:
;
www.sina.com.cn. IN A
;; ANSWER SECTION:
www.sina.com.cn. 60 IN CNAME
spool.grid.sinaedge.com.
spool.grid.sinaedge.com. 60 IN CNAME
ww1.sinaimg.cn.w.alikunlun.com.
ww1.sinaimg.cn.w.alikunlun.com. 60 IN A 110.185.116.236
ww1.sinaimg.cn.w.alikunlun.com. 60 IN A 110.185.116.231
ww1.sinaimg.cn.w.alikunlun.com. 60 IN A 110.185.116.232
ww1.sinaimg.cn.w.alikunlun.com. 60 IN A 110.185.116.229
ww1.sinaimg.cn.w.alikunlun.com. 60 IN A 110.185.116.230
ww1.sinaimg.cn.w.alikunlun.com. 60 IN A 110.185.116.233
ww1.sinaimg.cn.w.alikunlun.com. 60 IN A 110.185.116.234
ww1.sinaimg.cn.w.alikunlun.com. 60 IN A 110.185.116.235
;; Query time: 137 msec
;; SERVER: 2402:4e00::2ae4:2e8d#53(2402:4e00:0::2ae4:2e8d) (UDP)
;; WHEN: Tue Aug 06 14:02:02 CST 2024
;; MSG SIZE rcvd: 262
[root@blog ~]# dig @
2402:4e00:0::2ae4:2e8d
www.taobao.com; <<>> DiG 9.18.0 <<>> @
2402:4e00:0::2ae4:2e8d
www.taobao.com; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19397
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; COOKIE: 2c2d03db44bbdec6 (echoed)
;; QUESTION SECTION:
;
www.taobao.com. IN A
;; ANSWER SECTION:
www.taobao.com. 579 IN CNAME
www.taobao.com.danuoyi.tbcache.com.
www.taobao.com.danuoyi.tbcache.com. 60 IN A 163.177.180.107
www.taobao.com.danuoyi.tbcache.com. 60 IN A 163.177.180.108
;; Query time: 33 msec
;; SERVER: 2402:4e00::2ae4:2e8d#53(2402:4e00:0::2ae4:2e8d) (UDP)
;; WHEN: Tue Aug 06 14:02:12 CST 2024
;; MSG SIZE rcvd: 132
[root@blog ~]# dig @
2402:4e00:0::2ae4:2e8d
www.jd.com; <<>> DiG 9.18.0 <<>> @
2402:4e00:0::2ae4:2e8d
www.jd.com; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 63704
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; COOKIE: 8e1a619943fb5cdc (echoed)
;; QUESTION SECTION:
;
www.jd.com. IN A
;; ANSWER SECTION:
www.jd.com. 120 IN CNAME
www.jd.com.gslb.qianxun.com.
www.jd.com.gslb.qianxun.com. 60 IN CNAME
www.jd.com.s.galileo.jcloud-cdn.com.
www.jd.com.s.galileo.jcloud-cdn.com. 60 IN CNAME
wwwv6.jcloudimg.com.
wwwv6.jcloudimg.com. 60 IN A 117.72.225.3
;; Query time: 370 msec
;; SERVER: 2402:4e00::2ae4:2e8d#53(2402:4e00:0::2ae4:2e8d) (UDP)
;; WHEN: Tue Aug 06 14:02:16 CST 2024
;; MSG SIZE rcvd: 181
[root@blog ~]# dig @
2402:4e00:0::2ae4:2e8d
www.pinduoduo.com; <<>> DiG 9.18.0 <<>> @
2402:4e00:0::2ae4:2e8d
www.pinduoduo.com; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 23905
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; COOKIE: 5c77ebe23d32511f (echoed)
;; QUESTION SECTION:
;
www.pinduoduo.com. IN A
;; ANSWER SECTION:
www.pinduoduo.com. 60 IN A 150.158.224.195
;; Query time: 70 msec
;; SERVER: 2402:4e00::2ae4:2e8d#53(2402:4e00:0::2ae4:2e8d) (UDP)
;; WHEN: Tue Aug 06 14:02:27 CST 2024
;; MSG SIZE rcvd: 74
```