配置yum镜像源

centos7配置本地yum源

先从官网下载centos7镜像 以centos7.4 为例 CentOS-7-x86_64-Everything-1804

[root@kangvcar ~]# mv CentOS-7-x86_64-Everything-1804 /dev/cdrom
[root@kangvcar ~]# mkdir /opt/centos-yum.bak
[root@kangvcar ~]# mv /etc/yum.repos.d/* /opt/centos-yum.bak/

2、挂在磁盘：

[root@bogon ~]#
[root@bogon ~]# mount -o loop /dev/cdrom /mnt/cdrom/

3、配置yum文件

[root@bogon yum.repos.d]# cd /etc/yum.repos.d/
[root@bogon yum.repos.d]# vi local.repo
[root@bogon yum.repos.d]# cat local.repo
[local]
name=local
baseurl=file:///mnt/cdrom
gpgcheck=0
enabled=1

yum celan all && yum makecache

centos7配置阿里云yum源

备份

[root@bogon ~]# cd /etc/yum.repos.d/
[root@bogon yum.repos.d]# mkdir repo_bak
[root@bogon yum.repos.d]# mv *.repo repo_bak/
[root@bogon yum.repos.d]# ls
repo_bak

下载新的CentOS-Base.repo 到/etc/yum.repos.d/
wget -O /etc/yum.repos.d/CentOS-Base.repo

[root@bogon yum.repos.d]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

[root@bogon yum.repos.d]# ls
CentOS-Base.repo repo_bak

执行yum clean all 清除缓存，运行 yum makecache 生成新的缓存

[root@bogon yum.repos.d]# yum clean all

配置阿里云epel源

[root@bogon stress]# wget http://mirrors.aliyun.com/repo/epel-7.repo
[root@bogon stress]#mv epel-7.repo /etc/yum.repos.d/
[root@bogon stress]#yum clean all

配置163源

备份

[root@bogon ~]# cd /etc/yum.repos.d/
[root@bogon yum.repos.d]# mkdir repo_bak
[root@bogon yum.repos.d]# mv *.repo repo_bak/
[root@bogon yum.repos.d]# ls
repo_bak

CentOS 7

wget -O /etc/yum.repos.d/CentOS7-Base-163.repo http://mirrors.163.com/.help/CentOS7-Base-163.repo

清除缓存

yum clean all

yum makecache

yum list

ftp配置yum

参照地址  https://blog.csdn.net/yonggeit/article/details/70258152