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在linux下，ping域名ping不了，ping ip却可以解决办法

2017-03-30 17:21 134 查看
ping域名：

[root@zyy ~]# ping www.baidu.com

ping: unknown host www.baidu.com

ping ip时：

[root@zyy ~]# ping 115.239.211.112

PING 115.239.211.112 (115.239.211.112) 56(84) bytes of data.

64 bytes from 115.239.211.112: icmp_seq=1 ttl=54 time=7.25 ms

64 bytes from 115.239.211.112: icmp_seq=2 ttl=54 time=7.36 ms

64 bytes from 115.239.211.112: icmp_seq=3 ttl=54 time=6.86 ms

64 bytes from 115.239.211.112: icmp_seq=4 ttl=54 time=6.93 ms

64 bytes from 115.239.211.112: icmp_seq=5 ttl=54 time=6.81 ms

64 bytes from 115.239.211.112: icmp_seq=6 ttl=54 time=6.56 ms

--- 115.239.211.112 ping statistics ---

6 packets transmitted, 6 received, 0% packet loss, time 5091ms

rtt min/avg/max/mdev = 6.567/6.967/7.368/0.291 ms

最终发现是/etc/resolv.conf中没DNS解析的

解决办法：在[b]/etc/resolv.conf中添加[/b]

[b]nameserver 192.168.1.1

search localdomain
[/b]

结果：

[root@zyy ~]# ping www.baidu.com

PING www.a.shifen.com (115.239.210.27) 56(84) bytes of data.

64 bytes from 115.239.210.27: icmp_seq=1 ttl=54 time=6.72 ms

64 bytes from 115.239.210.27: icmp_seq=2 ttl=54 time=6.06 ms

64 bytes from 115.239.210.27: icmp_seq=3 ttl=54 time=6.09 ms

64 bytes from 115.239.210.27: icmp_seq=4 ttl=54 time=6.16 ms

^C

--- www.a.shifen.com ping statistics ---

4 packets transmitted, 4 received, 0% packet loss, time 3963ms

rtt min/avg/max/mdev = 6.067/6.264/6.728/0.281 ms
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