IBM 推出 Quad9 公共 DNS 服务

[kawaii303]

非常好记，4 个 9，主打安全，能过滤恶意网址，延迟大概 220ms，在国内会不会成为谷歌 dns 的替代品？ http://www.solidot.org/story?sid=54530

[coolcoffee]

没区别吧， 该污染的用 4 个 8 和 4 个 9 都一样

[0017]

实测延迟小于 200ms,不过有 5%左右的丢包.......

[Charkey]

电信，延迟 270，丢包 0

[free4537]

正在 Ping 9.9.9.9 具有 32 字节的数据:
来自 9.9.9.9 的回复: 字节=32 时间=132ms TTL=50
来自 9.9.9.9 的回复: 字节=32 时间=129ms TTL=50
来自 9.9.9.9 的回复: 字节=32 时间=130ms TTL=50
来自 9.9.9.9 的回复: 字节=32 时间=138ms TTL=50

9.9.9.9 的 Ping 统计信息:
数据包: 已发送 = 4，已接收 = 4，丢失 = 0 (0% 丢失)，
往返行程的估计时间(以毫秒为单位):
最短 = 129ms，最长 = 138ms，平均 = 132ms


C:\Users\Woodrow>nslookup www.baidu.com 9.9.9.9
DNS request timed out.
timeout was 2 seconds.
服务器: UnKnown
Address: 9.9.9.9

非权威应答:
名称: www.wshifen.com
Addresses: 103.235.46.39
103.235.46.40
Aliases: www.baidu.com
www.a.shifen.com


C:\Users\Woodrow>ping 103.235.46.39

正在 Ping 103.235.46.39 具有 32 字节的数据:
来自 103.235.46.39 的回复: 字节=32 时间=334ms TTL=45
来自 103.235.46.39 的回复: 字节=32 时间=332ms TTL=45
来自 103.235.46.39 的回复: 字节=32 时间=334ms TTL=45
来自 103.235.46.39 的回复: 字节=32 时间=332ms TTL=45

103.235.46.39 的 Ping 统计信息:
数据包: 已发送 = 4，已接收 = 4，丢失 = 0 (0% 丢失)，
往返行程的估计时间(以毫秒为单位):
最短 = 332ms，最长 = 334ms，平均 = 333ms

[linxijun]

Last login: Mon Nov 13 17:19:47 on ttys000
AppledeiMac:~ apple$ ping 9.9.9.9
PING 9.9.9.9 (9.9.9.9): 56 data bytes
64 bytes from 9.9.9.9: icmp_seq=0 ttl=49 time=192.231 ms
64 bytes from 9.9.9.9: icmp_seq=1 ttl=49 time=192.957 ms
64 bytes from 9.9.9.9: icmp_seq=2 ttl=49 time=194.162 ms
64 bytes from 9.9.9.9: icmp_seq=3 ttl=49 time=199.639 ms
64 bytes from 9.9.9.9: icmp_seq=4 ttl=49 time=195.579 ms
64 bytes from 9.9.9.9: icmp_seq=5 ttl=49 time=188.395 ms
64 bytes from 9.9.9.9: icmp_seq=6 ttl=49 time=194.712 ms
64 bytes from 9.9.9.9: icmp_seq=7 ttl=49 time=194.363 ms
64 bytes from 9.9.9.9: icmp_seq=8 ttl=49 time=176.555 ms
64 bytes from 9.9.9.9: icmp_seq=9 ttl=49 time=192.603 ms
64 bytes from 9.9.9.9: icmp_seq=10 ttl=49 time=181.162 ms
64 bytes from 9.9.9.9: icmp_seq=11 ttl=49 time=191.578 ms
64 bytes from 9.9.9.9: icmp_seq=12 ttl=49 time=187.295 ms
64 bytes from 9.9.9.9: icmp_seq=13 ttl=49 time=185.596 ms
64 bytes from 9.9.9.9: icmp_seq=14 ttl=49 time=191.280 ms
64 bytes from 9.9.9.9: icmp_seq=15 ttl=49 time=193.693 ms
64 bytes from 9.9.9.9: icmp_seq=16 ttl=49 time=194.058 ms
64 bytes from 9.9.9.9: icmp_seq=17 ttl=49 time=204.406 ms
64 bytes from 9.9.9.9: icmp_seq=18 ttl=49 time=189.848 ms
64 bytes from 9.9.9.9: icmp_seq=19 ttl=49 time=186.148 ms
64 bytes from 9.9.9.9: icmp_seq=20 ttl=49 time=199.792 ms
64 bytes from 9.9.9.9: icmp_seq=21 ttl=49 time=187.016 ms
64 bytes from 9.9.9.9: icmp_seq=22 ttl=49 time=183.156 ms
64 bytes from 9.9.9.9: icmp_seq=23 ttl=49 time=183.254 ms
64 bytes from 9.9.9.9: icmp_seq=24 ttl=49 time=185.480 ms
64 bytes from 9.9.9.9: icmp_seq=25 ttl=49 time=180.471 ms
64 bytes from 9.9.9.9: icmp_seq=26 ttl=49 time=188.819 ms
64 bytes from 9.9.9.9: icmp_seq=27 ttl=49 time=185.163 ms
64 bytes from 9.9.9.9: icmp_seq=28 ttl=49 time=183.057 ms
64 bytes from 9.9.9.9: icmp_seq=29 ttl=49 time=190.951 ms
64 bytes from 9.9.9.9: icmp_seq=30 ttl=49 time=192.397 ms
64 bytes from 9.9.9.9: icmp_seq=31 ttl=49 time=184.462 ms
64 bytes from 9.9.9.9: icmp_seq=32 ttl=49 time=185.441 ms

64 bytes from 9.9.9.9: icmp_seq=33 ttl=49 time=276.453 ms
64 bytes from 9.9.9.9: icmp_seq=34 ttl=49 time=186.582 ms
64 bytes from 9.9.9.9: icmp_seq=35 ttl=49 time=184.364 ms
64 bytes from 9.9.9.9: icmp_seq=36 ttl=49 time=178.436 ms
64 bytes from 9.9.9.9: icmp_seq=37 ttl=49 time=186.446 ms
64 bytes from 9.9.9.9: icmp_seq=38 ttl=49 time=180.855 ms
64 bytes from 9.9.9.9: icmp_seq=39 ttl=49 time=193.625 ms
64 bytes from 9.9.9.9: icmp_seq=40 ttl=49 time=183.559 ms
64 bytes from 9.9.9.9: icmp_seq=41 ttl=49 time=190.733 ms
64 bytes from 9.9.9.9: icmp_seq=42 ttl=49 time=191.957 ms