Linux的yum安装报错：Couldn't resolve host 'mirrorlist.centos.org

问题:

cenos6准备测试环境时，如iperf软件,需要先有c编译环境，yum -y install gcc时报错，下载了gcc的tar.gz包，但是仍需要c编译环境，报错如下：

[root@ZHCS bin]# yum -y install gmp
Loaded plugins: fastestmirror, refresh-packagekit, security
Determining fastest mirrors
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=6&arch=x86_64&repo=os error was
14: PYCURL ERROR 6 - "Couldn't resolve host 'mirrorlist.centos.org'"
Error: Cannot find a valid baseurl for repo: base
[root@ZHCS bin]# nslookup mirrorlist.centos.org
;; connection timed out; trying next origin
;; connection timed out; no servers could be reached

解决方法:

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配置：
vim /etc/resolv.conf

nameserver 114.114.114.114

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上面的nameserver 如果有公司的本地仓库地址，可以填写本地地址，速度更快些。

c编译环境
yum install gcc
yum install gcc-c++