CentOS 6操作系统版本结束了生命周期（EOL），Linux社区已不再维护该操作系统版本。建议您升级操作系统至CentOS 7及以上，如果您的业务过渡期仍需要使用CentOS 6系统中的一些安装包，请根据下文切换CentOS 6的源。
使用腾讯云源。
# 备份原先yum源
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| mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
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# 下载新的yum源
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| wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.cloud.tencent.com/repo/centos6_base.repo
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# 将文件内的http替换为https
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| sed -i 's#http#https#g' /etc/yum.repos.d/CentOS-Base.repo
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使用Vault源
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| wget -O /etc/yum.repos.d/CentOS-Base.repo https://static.lty.fun/%E5%85%B6%E4%BB%96%E8%B5%84%E6%BA%90/SourcesList/Centos-6-Vault-Official.repo
wget -O /etc/yum.repos.d/epel.repo http://file.kangle.odata.cc/repo/epel-6.repo
yum clean all
yum makecache
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如果您的服务器是阿里云的云服务器可以参考阿里云提供的内部方案：点击查看
如果您的服务器是腾讯云的可以将源文件（CentOS-Base.repo）里的链接替换成腾讯云提供的临时地址：mirrors.cloud.tencent.com。可使用下列命令批量替换
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| sed -i 's#源地址#mirrors.cloud.tencent.com#g' /etc/yum.repos.d/CentOS-Base.repo
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也可以使用阿里云Vault镜像
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| [base]
name=CentOS-6.10 - Base - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos-vault/6.10/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6
\#released updates
[updates]
name=CentOS-6.10 - Updates - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos-vault/6.10/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6
\#additional packages that may be useful
[extras]
name=CentOS-6.10 - Extras - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos-vault/6.10/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6
\#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-6.10 - Plus - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos-vault/6.10/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6
\#contrib - packages by Centos Users
[contrib]
name=CentOS-6.10 - Contrib - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos-vault/6.10/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6
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如果使用国外源可以添加代理加速访问
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| \
proxy=http://***.***.***.***:*****
proxy_username=账号
proxy_password=密码
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最后
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| \
yum clean all yum makecache
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