方法一： 通過(guò)/etc/network/interfaces众雷，在它的最后增加一句（多個(gè)dns之間用空格分隔）：
# interfaces(5) file used by ifup(8) and ifdown(8)
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet static
address 192.168.201.100
netmask 255.255.255.0
gateway 192.168.201.254
dns-nameservers 202.97.224.68 202.97.224.69
202.97.224.68是聯(lián)通的DNS服務(wù)。
重啟后DNS就生效了抖所，這時(shí)候/etc/resolv.conf文件最下面會(huì)多出一行：
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 202.97.224.68
nameserver 202.97.224.69
方法二 ：通過(guò)修改?/etc/resolvconf/resolv.conf.d/base（這個(gè)文件默認(rèn)是空的）
sudo vi /etc/resolvconf/resolv.conf.d/base
在里面插入：
nameserver 202.97.224.68
nameserver 202.97.224.69
如果有多個(gè)DNS就一行一個(gè)
修改好保存，然后執(zhí)行：
resolvconf -u
再看/etc/resolv.conf罗珍，最下面就多了2行：
cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 202.97.224.68
nameserver 202.97.224.69
可以看到設(shè)置的多個(gè)DNS已經(jīng)加上了糊秆，然后再ping一下百度，立即就可以解析了冷蚂，無(wú)需重啟缭保。
