將 /etc/hosts
改爲
zoo@zoo:~/x$ cat /etc/hosts
127.0.0.1 localhost
127.0.1.1 zoo
127.0.0.2 www.baidu.com
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
就行了...