epel源报错怎么解决?

http://mirrors.aliyun.com/centos/6/extras/x86_64/repodata/81fdefdd048c01dcc6cda1fd53aacec2a0613ea10d18163273f126fc42b6a5f8-filelists.sqlite.bz2: [Errno 14] PYCURL ERROR 7 - "couldn't connect to host"
Trying other mirror.
http://mirrors.aliyuncs.com/centos/6/extras/x86_64/repodata/81fdefdd048c01dcc6cda1fd53aacec2a0613ea10d18163273f126fc42b6a5f8-filelists.sqlite.bz2: [Errno 14] PYCURL ERROR 7 - "couldn't connect to host"
Trying other mirror.
http://mirrors.aliyun.com/centos/6/extras/x86_64/repodata/81fdefdd048c01dcc6cda1fd53aacec2a0613ea10d18163273f126fc42b6a5f8-filelists.sqlite.bz2: [Errno 14] PYCURL ERROR 7 - "couldn't connect to host"
Trying other mirror.
http://mirrors.aliyuncs.com/centos/6/extras/x86_64/repodata/81fdefdd048c01dcc6cda1fd53aacec2a0613ea10d18163273f126fc42b6a5f8-filelists.sqlite.bz2: [Errno 14] PYCURL ERROR 7 - "couldn't connect to host"
Trying other mirror.
Error: failure: repodata/81fdefdd048c01dcc6cda1fd53aacec2a0613ea10d18163273f126fc42b6a5f8-filelists.sqlite.bz2 from extras: [Errno 256] No more mirrors to try.

yum -y install epel-release

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原文地址：https://www.cnblogs.com/gaoyuechen/p/7682386.html