resolv.conf 配置信息丢失解决方法

配置DNS，修改/etc/resolv.conf，修改后重启服务 service network restart ，修改/etc/resolv.conf的信息丢失，请大家看看。

[code]修改前的配置

# No nameservers found; try putting DNS servers into your

# ifcfg files in /etc/sysconfig/network-scripts like so:

#

# DNS1=xxx.xxx.xxx.xxx

# DNS2=xxx.xxx.xxx.xxx

# DOMAIN=lab.foo.com bar.foo.com

网上baidu的

解决方法一：在ifcfg-eth0 直接加入DNS1=xxx.xxx.xxx.xxx，再service network restart

DEVICE=\"eth0\"

BOOTPROTO=\"static\"

HWADDR=\"00:0C:29:B5:E4:65\"

NM_CONTROLLED=\"yes\"

ONBOOT=\"yes\"

IPADDR=192.168.128.133

NETMASK=255.255.255.0

GATEWAY=192.168.128.1

DNS1=222.46.120.6

再来查看resolv.conf 多了一行 namerserver xxx.xxx.xxx.xx

# Generated by NetworkManager

nameserver 222.46.120.6

本人没有测示:

网上baidu的

还有方法二：

文章内容：

vim /etc/resolvconf/resolv.conf.d/head 文件

显示与resolv.conf相同的内容：

# 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)

在最后键入nameserver 202.102.152.3

保存退出，

resolvconf -u

此时就可以正常上网了，重启后不用在重新设置DNS了。

测示失败: [root@localhost etc]# find / -name resolv.conf.d 找不到这个文件 这是哪个linux版本的配置??

方法三:(自己向别人请教,经测示过的,可用,原理也清晰)

系统环境:

[root@localhostroot]#cat/etc/issueCentOSrelease6.2(Final)Kernel\\ronan\\m[root@localhostroot]#uname-aLinuxlocalhost2.6.32-220.el6.i686#1SMPTueDec616:15:40GMT2011i686i686i386GNU/Linux

系统平台:

防火墙已开启/iptables:Firewall is running.

SELINUX=enabled

/etc/resolv.conf文件配置好了, service network restart 重启丢失,主要是NetworkManager服务引起的.

1. 修改/etc/resolv.conf 文件 ,添加需要解析的nameserver

[root@localhostroot]#cat/etc/resolv.conf#GeneratedbyNetworkManager备注了,这个是NetworkManager管理的#Nonameserversfound;tryputtingDNSserversintoyour#ifcfgfilesin/etc/sysconfig/network-scriptslikeso:#DNS1=xxx.xxx.xxx.xxx#DNS2=xxx.xxx.xxx.xxx#DOMAIN=lab.foo.combar.foo.comnameserver10.1.32.16nameservre8.8.8.8

2.修改 /etc/sysconfig/network-scripts/ifcfg-eth0 文件中的#NM_CONTROLLED改成no

[root@localhostroot]#cat/etc/sysconfig/network-scripts/ifcfg-eth0DEVICE=\"eth0\"HWADDR=\"00:26:9E:27:BF:2F\"NM_CONTROLLED=\"no\"#NM_CONTROLLED改成noONBOOT=\"yes\"IPADDR=10.43.5.30NETMASK=255.255.255.0GATEWAY=10.43.5.253

3. 将 NetworkManager 服务停止

[root@localhostroot]#serviceNetworkManagerstatusNetworkManagerisstopped[root@localhostxjb]#

[root@localhostroot]#chkconfigNetworkManageroff

4. 重启一下网络,测示一下

[root@localhostetc]#cat/etc/resolv.conf#GeneratedbyNetworkManager#Nonameserversfound;tryputtingDNSserversintoyour#ifcfgfilesin/etc/sysconfig/network-scriptslikeso:#DNS1=xxx.xxx.xxx.xxx#DNS2=xxx.xxx.xxx.xxx#DOMAIN=lab.foo.combar.foo.comnameserver10.1.32.16nameservre8.8.8.8[root@localhostetc]#servicenetworkrestartShuttingdowninterfaceeth0:[OK]Shuttingdownloopbackinterface:[OK]Bringinguploopbackinterface:[OK]Bringingupinterfaceeth0:[OK]