linux下能ping ip不能ping域名
竟然无法ping 域名 本想同步nrpe时间的
今天在开发的同事来说,内网不能通过域名访问自己的服务器!然后做了下面的测试发现这样的问题:
[root@Aaronwang ~]# ping
www.baidu.com
ping: unknown host
www.baidu.com
[root@Aaronwang ~]#ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=0.537 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=0.430 ms
— 192.168.1.1 ping statistics —
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.430/0.483/0.537/0.057 ms
[root@Aaronwang ~]#cat /etc/host.conf
order bind,hosts
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=0.537 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=0.430 ms
— 192.168.1.1 ping statistics —
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.430/0.483/0.537/0.057 ms
[root@Aaronwang ~]#cat /etc/host.conf
order bind,hosts
经过一翻查找后解决了,原因和方法如下:
[root@Aaronwang ~]# grep host /etc/nsswitch.conf
#hosts: db files nisplus nis dns
hosts: files
主机只找文件不走dns,将其该成hosts: files dns 即可
#hosts: db files nisplus nis dns
hosts: files
主机只找文件不走dns,将其该成hosts: files dns 即可
本文转自 holy2009 51CTO博客,原文链接:http://blog.51cto.com/holy2010/315076