1.修改/etc/resolv.conf文件,比如
domain xxx.xxx //网络域
nameserver 10.161.32.01//dns服务器
2.修改/etc/nsswitch.conf文件
#
# /etc/nsswitch.files:
#
# An example file that could be copied over to /etc/nsswitch.conf; it
# does not use any naming service.
#
# "hosts:" and "services:" in this file are used only if the
# /etc/netconfig file has a "-" for nametoaddr_libs of "inet" transports.
passwd: files
group: files
hosts: files dns //指定主机搜索顺序,先是本地hosts文件,然后是dns服务器
ipnodes: files
networks: files
protocols: files
rpc: files
ethers: files
netmasks: files
bootparams: files
publickey: files
# At present there isn't a 'files' backend for netgroup; the system will
# figure it out pretty quickly, and won't use netgroups at all.
netgroup: files
automount: files
aliases: files
services: files
sendmailvars: files
printers: user files
auth_attr: files
prof_attr: files
project: files