执行yum命令出现该错误。

Cannot find a valid baseurl for repo: base

ping www.baidu.com 不通，但是内网是通的；

检查步骤：

1. 确认本地ip、DNS没问题；

2. 检查网关；
   查看route：
   

   

   
   发现：没有默认网关。
   解决：执行route add default gw 192.168.1.1 dev eth0
   

   

==

yum-yinstallwget

已加载插件：fastestmirror
设置安装进程
Loading mirror speeds from cached hostfile
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=6&arch=x86_64&repo=os&infra=stock error was
14: PYCURL ERROR 6 - "Couldn't resolve host 'mirrorlist.centos.org'"
错误：Cannot find a valid baseurl for repo: base

＝＝

vi /etc/resov.conf

find / -name resov.conf
vi /etc/resov.conf
ls /etc/yum.repos.d
vi CentOS-Base.repo

find / -name ifcfg-eth0

vi /etc/sysconfig/network-scripts/ifcfg-eth0

cat /proc/version

reboot

vi /etc/resolv.conf

里面加了一句：

# Generated by NetworkManager
nameserver 192.168.1.1
nameserver 114.114.114.114

ping www.baidu.com

ping mirrorlist.centos.org