You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
本人最近使用北京网邻宽带——一家覆盖面积只有几平方公里的宽带运营商的网络——使用chinadns时不时ps4走国外的cdn节点。
然后不经意间,我发现了:
PING www.a.shifen.com (220.181.111.188): 56 data bytes
64 bytes from 220.181.111.188: icmp_seq=0 ttl=52 time=10.245 ms
64 bytes from 220.181.111.188: icmp_seq=1 ttl=52 time=16.607 ms
64 bytes from 220.181.111.188: icmp_seq=2 ttl=52 time=24.203 ms
64 bytes from 220.181.111.188: icmp_seq=3 ttl=52 time=6.583 ms
64 bytes from 220.181.111.188: icmp_seq=4 ttl=52 time=7.546 ms
64 bytes from 220.181.111.188: icmp_seq=5 ttl=52 time=11.021 ms
64 bytes from 220.181.111.188: icmp_seq=6 ttl=52 time=21.882 ms
64 bytes from 220.181.111.188: icmp_seq=7 ttl=52 time=8.396 ms
64 bytes from 220.181.111.188: icmp_seq=8 ttl=52 time=7.035 ms
64 bytes from 220.181.111.188: icmp_seq=9 ttl=52 time=7.112 ms
64 bytes from 220.181.111.188: icmp_seq=10 ttl=52 time=12.095 ms
64 bytes from 220.181.111.188: icmp_seq=11 ttl=52 time=8.043 ms
64 bytes from 220.181.111.188: icmp_seq=12 ttl=52 time=147.277 ms
64 bytes from 220.181.111.188: icmp_seq=13 ttl=52 time=7.625 ms
64 bytes from 220.181.111.188: icmp_seq=14 ttl=52 time=6.483 ms
64 bytes from 220.181.111.188: icmp_seq=15 ttl=52 time=8.829 ms
64 bytes from 220.181.111.188: icmp_seq=16 ttl=52 time=6.981 ms
64 bytes from 220.181.111.188: icmp_seq=17 ttl=52 time=8.043 ms
64 bytes from 220.181.111.188: icmp_seq=18 ttl=52 time=7.470 ms
64 bytes from 220.181.111.188: icmp_seq=19 ttl=52 time=6.447 ms
64 bytes from 220.181.111.188: icmp_seq=20 ttl=52 time=9.046 ms
64 bytes from 220.181.111.188: icmp_seq=21 ttl=52 time=6.596 ms
64 bytes from 220.181.111.188: icmp_seq=22 ttl=52 time=8.473 ms
64 bytes from 220.181.111.188: icmp_seq=23 ttl=52 time=7.468 ms
64 bytes from 220.181.111.188: icmp_seq=24 ttl=52 time=109.848 ms
没错,这小运营商的网络极不稳定,连baidu.com的延迟变化幅度极大。也就是说查询cdn节点时,国内dns返回时间可能比国外要长,然后chinadns直接使用了先返回的国外节点。
目前,我用下面的dns:
219.141.140.10,219.141.136.10,202.106.196.115,202.106.0.20,127.0.0.1:5300
四个北京dns(网通+电信) vs 一个国外dns(谷歌)
然而依旧有可能走国外节点(有几成概率吧):
PING sonycoment.vo.llnwd.net (203.77.188.253): 56 data bytes
64 bytes from 203.77.188.253: icmp_seq=0 ttl=43 time=189.938 ms
Request timeout for icmp_seq 1
Request timeout for icmp_seq 2
Request timeout for icmp_seq 3
64 bytes from 203.77.188.253: icmp_seq=4 ttl=43 time=188.064 ms
^C
--- sonycoment.vo.llnwd.net ping statistics ---
5 packets transmitted, 2 packets received, 60.0% packet loss
本人最近使用北京网邻宽带——一家覆盖面积只有几平方公里的宽带运营商的网络——使用chinadns时不时ps4走国外的cdn节点。
然后不经意间,我发现了:
PING www.a.shifen.com (220.181.111.188): 56 data bytes
64 bytes from 220.181.111.188: icmp_seq=0 ttl=52 time=10.245 ms
64 bytes from 220.181.111.188: icmp_seq=1 ttl=52 time=16.607 ms
64 bytes from 220.181.111.188: icmp_seq=2 ttl=52 time=24.203 ms
64 bytes from 220.181.111.188: icmp_seq=3 ttl=52 time=6.583 ms
64 bytes from 220.181.111.188: icmp_seq=4 ttl=52 time=7.546 ms
64 bytes from 220.181.111.188: icmp_seq=5 ttl=52 time=11.021 ms
64 bytes from 220.181.111.188: icmp_seq=6 ttl=52 time=21.882 ms
64 bytes from 220.181.111.188: icmp_seq=7 ttl=52 time=8.396 ms
64 bytes from 220.181.111.188: icmp_seq=8 ttl=52 time=7.035 ms
64 bytes from 220.181.111.188: icmp_seq=9 ttl=52 time=7.112 ms
64 bytes from 220.181.111.188: icmp_seq=10 ttl=52 time=12.095 ms
64 bytes from 220.181.111.188: icmp_seq=11 ttl=52 time=8.043 ms
64 bytes from 220.181.111.188: icmp_seq=12 ttl=52 time=147.277 ms
64 bytes from 220.181.111.188: icmp_seq=13 ttl=52 time=7.625 ms
64 bytes from 220.181.111.188: icmp_seq=14 ttl=52 time=6.483 ms
64 bytes from 220.181.111.188: icmp_seq=15 ttl=52 time=8.829 ms
64 bytes from 220.181.111.188: icmp_seq=16 ttl=52 time=6.981 ms
64 bytes from 220.181.111.188: icmp_seq=17 ttl=52 time=8.043 ms
64 bytes from 220.181.111.188: icmp_seq=18 ttl=52 time=7.470 ms
64 bytes from 220.181.111.188: icmp_seq=19 ttl=52 time=6.447 ms
64 bytes from 220.181.111.188: icmp_seq=20 ttl=52 time=9.046 ms
64 bytes from 220.181.111.188: icmp_seq=21 ttl=52 time=6.596 ms
64 bytes from 220.181.111.188: icmp_seq=22 ttl=52 time=8.473 ms
64 bytes from 220.181.111.188: icmp_seq=23 ttl=52 time=7.468 ms
64 bytes from 220.181.111.188: icmp_seq=24 ttl=52 time=109.848 ms
没错,这小运营商的网络极不稳定,连baidu.com的延迟变化幅度极大。也就是说查询cdn节点时,国内dns返回时间可能比国外要长,然后chinadns直接使用了先返回的国外节点。
目前,我用下面的dns:
219.141.140.10,219.141.136.10,202.106.196.115,202.106.0.20,127.0.0.1:5300
四个北京dns(网通+电信) vs 一个国外dns(谷歌)
然而依旧有可能走国外节点(有几成概率吧):
PING sonycoment.vo.llnwd.net (203.77.188.253): 56 data bytes
64 bytes from 203.77.188.253: icmp_seq=0 ttl=43 time=189.938 ms
Request timeout for icmp_seq 1
Request timeout for icmp_seq 2
Request timeout for icmp_seq 3
64 bytes from 203.77.188.253: icmp_seq=4 ttl=43 time=188.064 ms
^C
--- sonycoment.vo.llnwd.net ping statistics ---
5 packets transmitted, 2 packets received, 60.0% packet loss
真是日了狗了。
nslookup gs2.ww.prod.dl.playstation.net
;; Truncated, retrying in TCP mode.
Server: 192.168.1.1
Address: 192.168.1.1#53
** server can't find gs2.ww.prod.dl.playstation.net: NXDOMAIN
The text was updated successfully, but these errors were encountered: