我正在构建 DNS 服务，我需要找出查询我的 DNS 服务器的位置。显然，任何使用 Google 公共 DNS（如 8.8.8.8）的人都来自 Google /17 网络，如果我进行 geoip 查找，它会解析为美国，但服务器位于爱尔兰。
我是否真的需要对每个 IP 运行跟踪路由来查明它有多远？
此外，bgp 报告它是 /23 子网，但是我不知道如何获取最新的信息。 http://bgp.he.net/ip/209.85.143.94
[root@test ~]# host 209.85.143.94
94.143.85.209.in-addr.arpa domain name pointer dy-in-f94.1e100.net.
[root@test ~]# geoiplookup 209.85.143.94
GeoIP Country Edition: US, United States
[root@test ~]# traceroute 209.85.143.94
traceroute to 209.85.143.94 (209.85.143.94), 30 hops max, 60 byte packets
1 31.222.167.2 (31.222.167.2) 1.344 ms 2.273 ms 2.135 ms
2 core6a-aggr325a-4.lon3.rackspace.net (92.52.77.106) 3.386 ms 3.326 ms 3.316 ms
3 corea-core6a.lon3.rackspace.net (164.177.137.10) 3.290 ms 3.249 ms coreb-core6a.lon3.rackspace.net (164.177.137.22) 3.222 ms
4 edge1-coreb.lon3.rackspace.net (164.177.137.29) 3.199 ms 3.161 ms edge1-corea.lon3.rackspace.net (164.177.137.27) 3.138 ms
5 195.50.122.41 (195.50.122.41) 3.118 ms 3.075 ms 3.047 ms
6 195.50.122.82 (195.50.122.82) 3.021 ms 1.523 ms 1.589 ms
7 209.85.255.78 (209.85.255.78) 2.940 ms 209.85.255.76 (209.85.255.76) 2.877 ms 209.85.255.78 (209.85.255.78) 2.873 ms
8 209.85.253.90 (209.85.253.90) 2.844 ms 2.817 ms 2.789 ms
9 209.85.250.216 (209.85.250.216) 18.132 ms 209.85.251.190 (209.85.251.190) 14.584 ms 209.85.250.216 (209.85.250.216) 18.049 ms
10 209.85.253.125 (209.85.253.125) 14.537 ms 209.85.253.203 (209.85.253.203) 16.017 ms 209.85.253.127 (209.85.253.127) 14.484 ms
11 216.239.43.22 (216.239.43.22) 22.787 ms 22.739 ms 216.239.47.26 (216.239.47.26) 25.445 ms
12 dy-in-f94.1e100.net (209.85.143.94) 17.312 ms 12.970 ms 15.537 ms