centos目标服务器不能访问外网yum源，本地yum源安装找不对对应版本的问题解决

一、yum安装报错，提示没有对应的版本

Error: Package: glibc-2.17-260.el7_6.6.i686 (updates)
           Requires: glibc-common = 2.17-260.el7_6.6
           Installed: glibc-common-2.17-307.el7.1.x86_64 (@anaconda)
               glibc-common = 2.17-307.el7.1
           Available: glibc-common-2.17-260.el7.x86_64 (base)
               glibc-common = 2.17-260.el7
           Available: glibc-common-2.17-260.el7_6.3.x86_64 (updates)
               glibc-common = 2.17-260.el7_6.3
           Available: glibc-common-2.17-260.el7_6.4.x86_64 (updates)
               glibc-common = 2.17-260.el7_6.4
           Available: glibc-common-2.17-260.el7_6.5.x86_64 (updates)
               glibc-common = 2.17-260.el7_6.5
           Available: glibc-common-2.17-260.el7_6.6.x86_64 (updates)
               glibc-common = 2.17-260.el7_6.6
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest

二、从一台有外网的服务器上打开yum.conf的缓存参数，并yum安装同样的安装包得到rpm文件

centos yum命令安装并保存rpm安装包

三、将rpm包上传到或者本地U盘复制到目标服务器上

执行  rpm -ivh rpm文件名  进行安装即可