[root@MYPC etc]# lsb_release -a
LSB Version: :core-4.0-ia32:core-4.0-noarch
Distributor ID: Fedora
Description: Fedora release 14 (Laughlin)
Release: 14
Codename: Laughlin
[root@MYPC etc]# uname -a
Linux MYPC 2.6.35.11-83.fc14.i686.PAE #1 SMP Mon Feb 7 06:57:55 UTC 2011 i686 i686 i386 GNU/Linux
[root@MYPC etc]# cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 127.0.0.1
nameserver 8.8.8.8
[root@MYPC etc]# cat /etc/host.conf
multi on
order hosts,bind
[root@MYPC etc]# cat /etc/hosts
192.168.1.2 MYPC # Added by NetworkManager
127.0.0.1 localhost.localdomain localhost
::1 MYPC localhost6.localdomain6 localhost6
127.0.0.0 audit.median.hu
[root@MYPC etc]# ping audit.median.hu
Do you want to ping broadcast? Then -b
[root@MYPC etc]# host -t a audit.median.hu
audit.median.hu has address 193.68.35.149
audit.median.hu has address 193.91.69.232
audit.median.hu has address 193.68.35.131
audit.median.hu has address 193.68.35.136
为什么 ping 看到 audit.median.hu 为127.0.0.0，为什么呢 host -t a audit.median.hu 把它看作193.68.35.149？ audit.median.hu 只是一个示例网站[托管广告等]
我的Fedora PC上只有一个缓存名称服务器：
yum -y install caching-nameserver
service named restart
chkconfig named on
我在Network-Manager Applet中配置了我的DNS服务器地址：127.0.0.1,8.8.8.8
即使使用Wireshark，我也能看到它：
`195.70.37.149 DNS Standard query A audit.median.hu`
所以最大的问题是：为什么不这样做 host 命令或我的Web浏览器识别我已修改 audit.median.hu 的IP地址？