可否在本地计算机上架设一个域名-ip数据库

[pengsir]

我学习了一下dig 命令

dig +trace www.baidu.com

; <<>> DiG 9.9.5-9+deb8u3-Debian <<>> +trace www.baidu.com
;; global options: +cmd
. 38942 IN NS e.root-servers.net.
. 38942 IN NS a.root-servers.net.
. 38942 IN NS b.root-servers.net.
. 38942 IN NS c.root-servers.net.
. 38942 IN NS i.root-servers.net.
. 38942 IN NS h.root-servers.net.
. 38942 IN NS l.root-servers.net.
. 38942 IN NS f.root-servers.net.
. 38942 IN NS g.root-servers.net.
. 38942 IN NS m.root-servers.net.
. 38942 IN NS d.root-servers.net.
. 38942 IN NS j.root-servers.net.
. 38942 IN NS k.root-servers.net.
. 224694 IN RRSIG NS 8 0 518400 20151225170000 20151215160000 62530 . AM6bsq/WtFRU2ZGblXiK3KAY5Xp0aQMz5M4V9+9jQRxim2m9Ay52YoPw IWI1OBuzEerT5hFSEKW3CD5JSYYyiIIgKveWcL1E4mM2NdfoC6V4kgd0 Q/NTD3tegPKXKM8ZHfTUk0SbHUE6ykw/lDuheci1mf3+lWG9ihTxj6N6 1Ow=
;; Received 397 bytes from 192.168.1.1#53(192.168.1.1) in 497 ms

com. 172800 IN NS h.gtld-servers.net.
com. 172800 IN NS i.gtld-servers.net.
com. 172800 IN NS m.gtld-servers.net.
com. 172800 IN NS g.gtld-servers.net.
com. 172800 IN NS b.gtld-servers.net.
com. 172800 IN NS a.gtld-servers.net.
com. 172800 IN NS c.gtld-servers.net.
com. 172800 IN NS k.gtld-servers.net.
com. 172800 IN NS f.gtld-servers.net.
com. 172800 IN NS j.gtld-servers.net.
com. 172800 IN NS d.gtld-servers.net.
com. 172800 IN NS l.gtld-servers.net.
com. 172800 IN NS e.gtld-servers.net.
com. 86400 IN DS 30909 8 2 E2D3C916F6DEEAC73294E8268FB5885044A833FC5459588F4A9184CF C41A5766
com. 86400 IN RRSIG DS 8 1 86400 20151229050000 20151219040000 62530 . Qyiz9YyPWNuwPlDXyKEq3sixEUzbCtIQhlVRlvoJvf0+q1ME7riUqb11 1vdAQmDQbu0QNmVOABon+qUNVHnihflMiTuJBi36k/zpOs1/jaKK/+h3 VzElE9wnePvcpWMzUwLOz8rUtQBZeulnAF05SDGSmU4Fuxuxtpq03rof TzA=
;; Received 737 bytes from 192.36.148.17#53(i.root-servers.net) in 588 ms

baidu.com. 172800 IN NS dns.baidu.com.
baidu.com. 172800 IN NS ns2.baidu.com.
baidu.com. 172800 IN NS ns3.baidu.com.
baidu.com. 172800 IN NS ns4.baidu.com.
baidu.com. 172800 IN NS ns7.baidu.com.
CK0POJMG874LJREF7EFN8430QVIT8BSM.com. 86400 IN NSEC3 1 1 0 - CK0Q1GIN43N1ARRC9OSM6QPQR81H5M9A NS SOA RRSIG DNSKEY NSEC3PARAM
CK0POJMG874LJREF7EFN8430QVIT8BSM.com. 86400 IN RRSIG NSEC3 8 2 86400 20151226055326 20151219044326 51797 com. SpiAXslRV5sdT+l4wrsYTn/W3dH1UJcmd2eO0cXluTAkaS9TDp4an0qd jNxu6U51N4K09aaj8tkSqPi4JlGFUV9Yx3c//ytPaqWt7dOmUaEvnihL egFcLcTL6DD7RVvEoLT6aANmg8jDS9pQXjFIR3wDRDqLvfs6L96uqGvc V1w=
HPVV2B5N85O7HJJRB7690IB5UVF9O9UA.com. 86400 IN NSEC3 1 1 0 - HPVV9UNFR23OVV2EH3NNTJ1A7JE3ETFH NS DS RRSIG
HPVV2B5N85O7HJJRB7690IB5UVF9O9UA.com. 86400 IN RRSIG NSEC3 8 2 86400 20151224055400 20151217044400 51797 com. lgVCSGarWuNm8H3sGsL67h0zDnhl8ZaH0U35a5ixBI7vEOSHeFQcbdOY FGDzeCGlJteVGJclePrcQ6hOwI16FJTu4x5UEBpSI1CeibKBqVddUWOC Gr1od28i4UTsifloURwinfm0TdLGdbdK6E4egQ5MdbW1B+Zhfp24IVpy 0zo=
;; Received 697 bytes from 192.52.178.30#53(k.gtld-servers.net) in 583 ms

www.baidu.com. 1200 IN CNAME www.a.shifen.com.
a.shifen.com. 1200 IN NS ns4.a.shifen.com.
a.shifen.com. 1200 IN NS ns2.a.shifen.com.
a.shifen.com. 1200 IN NS ns1.a.shifen.com.
a.shifen.com. 1200 IN NS ns3.a.shifen.com.
a.shifen.com. 1200 IN NS ns5.a.shifen.com.
;; Received 239 bytes from 202.108.22.220#53(dns.baidu.com) in 105 ms

问题来了，
baidu.com等常用域名的地址可否在我本机上架设一个数据库，以后不用跑到根服务器去走一趟了。

[深秋里的姐妹]

你想要的是不是/etc/hosts？

[pengsir]

/etc/hosts可不好，我在学dns，可否用mysql数据库来做这个工作 。

[micro_cy]

牵扯上数据库就复杂了，何不简单点呢，你实际需要的是一个DNS服务器的功能罢了~相当于是在本地解析域名，不过，必要性不大，你不可能只访问互联网的百度网站，如果你需要获取大量的DNS数据，那除非你能拿到类似于114.114.114.114的数据，否则意义不大。

[独行猫儿]

你可以在本地建一个dns服务器试一下，把baidu.com下面的记录都缓存或保存到本地