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8.8.8.8是什么ip地址
发布时间:  2012/7/27 17:23:46

8.8.8.8是Google提供的免费DNS服务器的IP地址，Google提供的另外一个免费DNS服务器的IP地址是：8.8.4.4 。用户可以使用Google提供的DNS服务器上网。

 

Google今天又给了我们一个惊喜，并沉重的打击了OpenDNS：他们刚刚宣布向所有的互联网用户提供一组快速，安全并且完全免费的DNS解析服务器，地址分别是：8.8.8.8 8.8.4.4 我想这组ip看过后没有人会忘记吧？如果你用本地的DNS经常会出现不能访问一些 特殊 网站的情况，或者提示一些域名无法解析，不妨试试google的这一组DNS地址，或许会有惊喜哦！

 

 

 

经本人测试可用。有人说4.4.4.4和4.3.2.1也是，经过我测试，这两个IP可以ping通，但并不能做DNS 解析。

下面是测试经过： 电脑常识www.boydavid.com

zhouhh@zhhofs:~$ ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=240 time=200 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=240 time=84.7 ms
^C
--- 8.8.8.8 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 84.771/142.731/200.691/57.960 ms
zhouhh@zhhofs:~$ ping 8.8.4.4
PING 8.8.4.4 (8.8.4.4) 56(84) bytes of data.
64 bytes from 8.8.4.4: icmp_seq=1 ttl=240 time=111 ms
64 bytes from 8.8.4.4: icmp_seq=2 ttl=240 time=113 ms
^C
--- 8.8.4.4 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 111.370/112.358/113.346/0.988 ms
zhouhh@zhhofs:~$ ping 4.3.2.1
PING 4.3.2.1 (4.3.2.1) 56(84) bytes of data.
64 bytes from 4.3.2.1: icmp_seq=1 ttl=240 time=107 ms 
64 bytes from 4.3.2.1: icmp_seq=2 ttl=240 time=102 ms
^C
--- 4.3.2.1 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 102.059/104.628/107.198/2.589 ms
zhouhh@zhhofs:~$ nslookup 8.8.8.8
Server: 8.8.8.8
Address: 8.8.8.8#53
Non-authoritative answer:
8.8.8.8.in-addr.arpa name = google-public-dns-a.google.com.
Authoritative answers can be found from:
zhouhh@zhhofs:~$ nslookup 8.8.4.4
Server: 8.8.8.8
Address: 8.8.8.8#53
Non-authoritative answer:
4.4.8.8.in-addr.arpa name = google-public-dns-b.google.com.
Authoritative answers can be found from:
zhouhh@zhhofs:~$ nslookup 4.4.4.4
Server: 8.8.8.8
Address: 8.8.8.8#53
** server can't find 4.4.4.4.in-addr.arpa.: NXDOMAIN
zhouhh@zhhofs:~$ nslookup 4.3.2.1


Server: 8.8.8.8
Address: 8.8.8.8#53
** server can't find 1.2.3.4.in-addr.arpa: SERVFAIL
zhouhh@zhhofs:~$ nslookup 1.2.3.4
Server: 8.8.8.8
Address: 8.8.8.8#53
** server can't find 4.3.2.1.in-addr.arpa.: NXDOMAIN
zhouhh@zhhofs:~$ nslookup
> server 8.8.8.8
Default server: 8.8.8.8
Address: 8.8.8.8#53
> set type=a
> google.com
Server: 8.8.8.8
Address: 8.8.8.8#53
Non-authoritative answer:
Name: google.com
Address: 74.125.53.100
Name: google.com
Address: 74.125.67.100
Name: google.com
Address: 74.125.45.100
> sohu.com
Server: 8.8.8.8
Address: 8.8.8.8#53
Non-authoritative answer:
Name: sohu.com
Address: 61.135.181.176
Name: sohu.com
Address: 61.135.181.175 
> server 4.4.4.4
Default server: 4.4.4.4
Address: 4.4.4.4#53
> set type a
*** Invalid option: type
> set type = a
*** Invalid option: type
> set type=a
> google.com
^C
解析失败，超时

zhouhh@zhh64:~$ nslookup
> server 4.3.2.1
Default server: 4.3.2.1
Address: 4.3.2.1#53
> sohu.com
Server: 4.3.2.1
Address: 4.3.2.1#53

Non-authoritative answer:
Name: sohu.com
Address: 61.135.181.176
Name: sohu.com
Address: 61.135.181.175
> set type a
*** Invalid option: type
> set type = a
*** Invalid option: type
> set type=a
> sohu.com
Server: 4.3.2.1
Address: 4.3.2.1#53

Non-authoritative answer: 
Name: sohu.com
Address: 61.135.181.175
Name: sohu.com
Address: 61.135.181.176
> server 4.4.4.4
Default server: 4.4.4.4
Address: 4.4.4.4#53
> set type=a
> sohu.com
^C
4.4.4.4不通，4.3.2.1是通的。
zhouhh@zhhofs:~$ ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=240 time=200 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=240 time=84.7 ms
^C
--- 8.8.8.8 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1000ms
rtt min/avg/max/mdev = 84.771/142.731/200.691/57.960 ms
zhouhh@zhhofs:~$ ping 8.8.4.4
PING 8.8.4.4 (8.8.4.4) 56(84) bytes of data.
64 bytes from 8.8.4.4: icmp_seq=1 ttl=240 time=111 ms
64 bytes from 8.8.4.4: icmp_seq=2 ttl=240 time=113 ms
^C
--- 8.8.4.4 ping statistics --- 
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 111.370/112.358/113.346/0.988 ms
zhouhh@zhhofs:~$ ping 4.3.2.1
PING 4.3.2.1 (4.3.2.1) 56(84) bytes of data.
64 bytes from 4.3.2.1: icmp_seq=1 ttl=240 time=107 ms
64 bytes from 4.3.2.1: icmp_seq=2 ttl=240 time=102 ms
^C
--- 4.3.2.1 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 102.059/104.628/107.198/2.589 ms
zhouhh@zhhofs:~$ nslookup 8.8.8.8
Server: 8.8.8.8
Address: 8.8.8.8#53
Non-authoritative answer:
8.8.8.8.in-addr.arpa name = google-public-dns-a.google.com.
Authoritative answers can be found from:
zhouhh@zhhofs:~$ nslookup 8.8.4.4
Server: 8.8.8.8
Address: 8.8.8.8#53
Non-authoritative answer:
4.4.8.8.in-addr.arpa name = google-public-dns-b.google.com. 
Authoritative answers can be found from:
zhouhh@zhhofs:~$ nslookup 4.4.4.4
Server: 8.8.8.8
Address: 8.8.8.8#53
** server can't find 4.4.4.4.in-addr.arpa.: NXDOMAIN
zhouhh@zhhofs:~$ nslookup 4.3.2.1
Server: 8.8.8.8
Address: 8.8.8.8#53
** server can't find 1.2.3.4.in-addr.arpa: SERVFAIL
zhouhh@zhhofs:~$ nslookup 1.2.3.4
Server: 8.8.8.8
Address: 8.8.8.8#53
** server can't find 4.3.2.1.in-addr.arpa.: NXDOMAIN
zhouhh@zhhofs:~$ nslookup
> server 8.8.8.8
Default server: 8.8.8.8
Address: 8.8.8.8#53
> set type=a
> google.com
Server: 8.8.8.8
Address: 8.8.8.8#53
Non-authoritative answer:
Name: google.com
Address: 74.125.53.100
Name: google.com
Address: 74.125.67.100
Name: google.com 
Address: 74.125.45.100
> sohu.com
Server: 8.8.8.8
Address: 8.8.8.8#53
Non-authoritative answer:
Name: sohu.com
Address: 61.135.181.176
Name: sohu.com
Address: 61.135.181.175
> server 4.4.4.4
Default server: 4.4.4.4
Address: 4.4.4.4#53
> set type a
*** Invalid option: type
> set type = a
*** Invalid option: type
> set type=a
> google.com
^C
解析失败，超时

 

zhouhh@zhh64:~$ nslookup
> server 4.3.2.1
Default server: 4.3.2.1
Address: 4.3.2.1#53
> sohu.com
Server: 4.3.2.1
Address: 4.3.2.1#53

 

Non-authoritative answer:
Name: sohu.com
Address: 61.135.181.176
Name: sohu.com
Address: 61.135.181.175
> set type a
*** Invalid option: type
> set type = a
*** Invalid option: type
> set type=a
> sohu.com
Server: 4.3.2.1
Address: 4.3.2.1#53

 

Non-authoritative answer:
Name: sohu.com
Address: 61.135.181.175
Name: sohu.com
Address: 61.135.181.176
> server 4.4.4.4
Default server: 4.4.4.4
Address: 4.4.4.4#53
> set type=a
> sohu.com
^C
4.4.4.4不通，4.3.2.1是通的。

 

说明8.8.8.8，8.8.4.4可用。

 

后经补充测试， 4.3.2.1可用。 电脑技术www.boydavid.com

8.8.8.8、8.8.4.4和4.3.2.1不用担心域名绑架，但8.8.8.8、8.8.4.4和4.3.2.1有可能遭GFW封杀。

 

ps：后来一晚上给一个女生解决网络问题，配IP地址，在DNS 配了8.8.8.8，结果她问，“DNS 这个随便配一个就行了，是吧？” 8.8.8.8实在太吉祥太吉利太好记了，搞得大家都不相信。

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