详解CentOS7系统初始化设置(2)-木庄网络博客

https://opsx.alibaba.com/mirror

4.1 备份

备份所有

1 2	`#` `mkdir` `/etc/yum.repos.d/bak` `# mv /etc/yum.repos.d/* /etc/yum.repos.d/bak`

或者只备份 CentOS-Base.repo 文件

1	`# mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup`

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

CentOS 5

# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo
或者
# curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo

CentOS 6

# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo
或者
# curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo

CentOS 7

# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
或者
# curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

4.3 配置epel源

epel(RHEL 7)
    wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
 
epel(RHEL 6)
    wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo
 
epel(RHEL 5)
    wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-5.repo

4.4 运行yum makecache生成缓存

# yum clean all
# yum makecache
# yum repolist

5.　基本软件工具安装

通过配置好的YUM库安装常用软件和工具

# yum install -y vim
# yum install -y wget
# yum install -y lrzsz

最小化安装没有ifconfig命令解决方法

# yum search ifconfig
# yum install -y net-tools
# yum provides ifconfig

命令粘贴

nmtui
 
systemctl stop firewalld.service
systemctl disable firewalld.service
 
setenforce 0
vi /etc/selinux/config
SELINUX=disable
 
mkdir /etc/yum.repos.d/bak
mv /etc/yum.repos.d/* /etc/yum.repos.d/bak
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
curl -o /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
 
yum clean all
yum makecache
yum repolist
 
yum install -y vim
yum install -y wget
yum install -y lrzsz
yum install -y net-tools