07 下载配置很完善的yum软件源

前言

如何安装别人分享的Centos 7
上面这篇文章详细讲述了，用别人分享的虚拟机的好处，这里我们继续讲解这个虚拟机的好处，有完善能用的软件源，这个非常的重要。自己网上找，就需要不断的试错，而且还不容易找到可以使用的软件源，这里我们Copy别人分享的Centos 7的软件源。

ping 测试网络

一直闪烁，说明网络配置有问题，可能没有连接到虚拟网卡

排查原因

排查虚拟机的虚拟网络是否开启

如果没有已启用，就右键启用

检查net8虚拟网络和Centos 7的ip地址是否在一个局域网

点击虚拟网络编辑器

点击更改设置

记录net8的虚拟网络地址

192.168.230.0

ip a

查看Centos 7的ip地址是否有

记录Centos 7的ip地址

192.168.127.126

比较net8和Centos 7的ip地址是否在一个网段

明显不在一个网段

解决问题

问题

net8和Centos 7的ip地址不在一个网段

解决办法

修改net8的ip地址，让其作为Centos 7的网管

让net8的DHCP重新分配一个子ip

ens33 网卡名字

dhclient ens33

根据自己的实际情况改写dhclient后面的网卡名字

MobaXterm连接

选择保存密码，省的输的麻烦

密码最少7位

勾选跟随目录

进入yum软件源配置文件夹

 cd /etc/yum.repos.d/

推荐第一个，具体根据个人选择

查看需要的软件源 CentOS-Base.repo

下载到本地

点击OK

本地查看软件源

明显可以看出是阿里的源，总体还是不错的

CentOS-Base.repo

# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.  You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the 
# remarked out baseurl= line instead.
#
#[base]
name=CentOS-$releasever - Base - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/os/$basearch/http://mirrors.aliyuncs.com/centos/$releasever/os/$basearch/http://mirrors.cloud.aliyuncs.com/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7#released updates 
[updates]
name=CentOS-$releasever - Updates - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/updates/$basearch/http://mirrors.aliyuncs.com/centos/$releasever/updates/$basearch/http://mirrors.cloud.aliyuncs.com/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/extras/$basearch/http://mirrors.aliyuncs.com/centos/$releasever/extras/$basearch/http://mirrors.cloud.aliyuncs.com/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/centosplus/$basearch/http://mirrors.aliyuncs.com/centos/$releasever/centosplus/$basearch/http://mirrors.cloud.aliyuncs.com/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib - mirrors.aliyun.com
failovermethod=priority
baseurl=http://mirrors.aliyun.com/centos/$releasever/contrib/$basearch/http://mirrors.aliyuncs.com/centos/$releasever/contrib/$basearch/http://mirrors.cloud.aliyuncs.com/centos/$releasever/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7