解决CentOS 6.3 yum安装软件时找不到镜像问题

近日,准备给某一客户企业部署nagios监控系统,于是在其IBM服务器上最小化安装了CentOS 6.3(64bit),却发现刚安装完的系统yum仓库更新不了。提示报错信息:

[root@nagios-server ~]# yum update –y
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
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@nagios-server ~]# nslookup mirrorlist.centos.org
;; connection timed out; no servers couldbe reached
到这里发现问题了,域名解析不了,yum的配置文件里指向的域名就识别不了了。重新设置下dns指向。

[root@nagios-server ~]# vim /etc/resolv.conf
search 38forsbm
nameserver 8.8.8.8
nameserver 218.85.152.99

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