yum update错误Couldn't resolve host

Loaded plugins: fastestmirror,security
Setting up Update Process
Determining fastest mirrors
http://xxx.com:8050/Centos/6/base/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'xxx.com'"
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again

求助别人后修改了/etc/dnsmasq.conf和/etc/resolv.conf解决了 修改此配置之后需要重启dnsmasq进程: service dnsmasq restart

（编辑：李大同）

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