私有yum仓库配备（CentOS8）ip地址：10.0.0.88
服务机配置阿里云的yum源
cd /etc/yum.repo.d/
mkdir backup
mv ./*.repo/ ./backup
touch aliyun.repo
vim aliyun.repo
编辑内容：
[BaseOS]
name=BaseOS
baseurl=https://mirrors.aliyun.com/centos/8/BaseOS/x86_64/os/
gpgcheck=1
gpgkey=file:////etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
[AppStream]
name=AppStream
baseurl=https://mirrors.aliyun.com/centos/8/AppStream/x86_64/os/
gpgcheck=1
gpgkey=file:////etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
[extras]
name=extras
baseurl=https://mirrors.aliyun.com/centos/8/extras/x86_64/os/
gpgcheck=1
gpgkey=file:////etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
保存退出！
yum repolist 查看yum源列表
下载httpd工具
yum -y install httpd
启用工具
systemctl enable --now httpd
创建相应文件目录
mkdir /var/www/html/centos/
下载yum源及meta数据至此目录
yum reposync --repoid=BaseOS --download-metadata -p /var/www/html/centos
yum reposync --repoid=Appstream --download-metadata -p /var/www/html/centos
yum reposync --repoid=extras --download-metadata -p /var/www/html/centos
查看源、数据下载情况
ls /var/www/html/centos/对应源目录/
显示：packages repodata
配置需求机yum源
cd /etc/yum.repo.d/
mkdir backup
mv ./*.repo/ ./backup
mkdir test.repo
vim test.repo
编辑内容：