根服务器是互联网域名解析系统中最高级别的域名服务器,共13台。目前的分布是:主根服务器美国1个,设置在弗吉尼亚州的杜勒斯;辅根服务器美国9个,瑞典、荷兰、日本各1个:
目录 |
There are currently 13 root name servers specified, with names in the form letter.root-servers.net, where letter ranges from A to M. (Seven of these are not actual single servers, but represent several physical servers each in multiple geographical locations; cf. below.):
| 字母 | IPv4地址 | IPv6地址 | 旧域名 | 运行机构 | 设置地点 | 软件 |
|---|---|---|---|---|---|---|
| A | 198.41.0.4 | 2001:503:BA3E::2:30 | ns.internic.net | VeriSign | 杜勒斯,弗吉尼亚州 | BIND |
| B | 192.228.79.201 | 2001:478:65::53 | ns1.isi.edu | 南加州大学-ISI | Marina Del Rey,加利福尼亚州 | BIND |
| C | 192.33.4.12 | c.psi.net | Cogent通信 | distributed using anycast | BIND | |
| D | 128.8.10.90 | terp.umd.edu | 马里兰大学 | 学院市 College Park,马里兰州 | BIND | |
| E | 192.203.230.10 | ns.nasa.gov | NASA | 芒廷维尤 | BIND | |
| F | 192.5.5.241 | 2001:500:2f::f | ns.isc.org | ISC | distributed using anycast | BIND |
| G | 192.112.36.4 | ns.nic.ddn.mil | 国防信息系统局 | 哥伦布,俄亥俄州 | BIND | |
| H | 128.63.2.53 | 2001:500:1::803f:235 | aos.arl.army.mil | 陆军研究实验室 | Aberdeen Proving Ground,马里兰州 | NSD |
| I | 192.36.148.17 | 2001:7fe::53 (testing) | nic.nordu.net | Autonomica | distributed using anycast | BIND |
| J | 192.58.128.30 | 2001:503:C27::2:30 | VeriSign | distributed using anycast | BIND | |
| K | 193.0.14.129 | 2001:7fd::1 | RIPE NCC | distributed using anycast | NSD | |
| L | 199.7.83.42[1] | 2001:500:3::42 | ICANN | distributed using anycast | NSD | |
| M | 202.12.27.33 | 2001:dc3::35 | WIDE Project | distributed using anycast | BIND |
stock | retire | vm
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