这是一个创建于 2491 天前的主题，其中的信息可能已经有所发展或是发生改变。
奇怪了，我的 hosts 也没设置过啊
```
a$ git:(master) ping www.google.com
PING www.google.com (0.0.0.0): 56 data bytes
ping: sendto: No route to host
^Pping: sendto: No route to host
Request timeout for icmp_seq 0
ping: sendto: No route to host
Request timeout for icmp_seq 1
^C
--- www.google.com ping statistics ---
3 packets transmitted, 0 packets received, 100.0% packet loss
a$ git:(master) dig www.google.com
;; QUESTION SECTION:
;www.google.com. IN A
;; ANSWER SECTION:
www.google.com. 157 IN A 173.252.110.21
;; Query time: 25 msec
;; SERVER: 1.2.4.8#53(1.2.4.8)
```
```
a$ git:(master) ping www.google.com
PING www.google.com (0.0.0.0): 56 data bytes
ping: sendto: No route to host
^Pping: sendto: No route to host
Request timeout for icmp_seq 0
ping: sendto: No route to host
Request timeout for icmp_seq 1
^C
--- www.google.com ping statistics ---
3 packets transmitted, 0 packets received, 100.0% packet loss
a$ git:(master) dig www.google.com
;; QUESTION SECTION:
;www.google.com. IN A
;; ANSWER SECTION:
www.google.com. 157 IN A 173.252.110.21
;; Query time: 25 msec
;; SERVER: 1.2.4.8#53(1.2.4.8)
```
 | 1 zro 2019-03-05 23:56:55 +08:00 这是污染域名，返回 Twitter、FB 的 IP 我也见过。。 |
 | 2 ochatokori 2019-03-06 04:29:24 +08:00 via Android  1 @zro #1 看清题目，楼主在第二段用 dig 返回了 fb 的 ip，这个才是污染 |
 | 3 catalina 2019-03-06 08:10:33 +08:00 via Android 用 CNNIC 的 DNS ？楼主你在想啥呢？？？ |
 | 4 Raymon111111 2019-03-06 10:53:03 +08:00 所以你人在大陆? |
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