4. 配置基础虚拟机的公共环境

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1. 防火墙设置
2. yum国内源设置
3. 一些必须工具
   • jdk java开发
   • lrzsz 上传下载
   • wget 网络下载
   • telnet 网络相关
   • bind* 网络相关
   • net-tools 网络相关
   • nscd dns相关
   • docker 容器相关
4. docker阿里镜像源

# 防火墙设置
systemctl stop firewalld
systemctl disable firewalld

# wget,没有则安装
yum list wget 
yum install wget -y
# yum 国内源设置
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

yum clean all

yum makecache

# 一些工具
yum install telnet bind* nscd yum-utils   device-mapper-persistent-data lvm2 net-tools 

# 安装docker
sudo yum-config-manager     --add-repo     https://download.docker.com/linux/centos/docker-ce.repo

sudo yum install docker-ce docker-ce-cli containerd.io

# 开机自启
systemctl enable docker

systemctl start docker
# docker 配置阿里云镜像加速
sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://m3lbzk97.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

# DNS设置
vi /etc/resolv.conf