hostnamectl set-hostname master01 //修改主机名
hostname //查看
#1.网络配置
vi /etc/sysconfig/network-scripts/ifcfg-ens33
#修改
BOOTTPROTO = dhcp => static
ONBOOT =no => yes
#增加
IPADDR=192.168.115.128 //自己的Ip地址
NETMASK=255.255.255.0
GATEWAY=192.168.115.2
DNS1=8.8.8.8
DNS2=114.114.114.114"(防止注释)
#关闭防火墙
systemctl stop firewalld
systemctl disable firewalld
systemctl stop NetworkManager
systemctl disable NetworkManager
systemctl restart network
#2.mobar进行连接
#3.简单优化
3.1
vi /etc/selinux/config
#--------------------------------------------
#修改
SELINUX=disabled
#--------------------------------------------
3.2
iptables -F
setenforce 0
3.3
vi /etc/ssh/sshd_config
#--------------------------------------------
#修改
UseDNS no 前面的 # 也去掉
#--------------------------------------------
#重启ssh协议
systemctl restart sshd
#4.本地镜像挂载
# minimal install 我们这边选择的是最小化安装
# 常用命令本地化安装
确保“虚拟机设置”中 CD/DVD “已连接”和“启动时链接”都处于勾选状态
# 挂载镜像
mount /dev/sr0 /mnt
# 备份默认配置信息
cd /etc/yum.repos.d
mkdir bak
mv *.repo bak/
# 配置/etc/yum.repos.d
vi /etc/yum.repos.d/base.repo
#--------------------------------------------
[local]
name=local
baseurl=file:///mnt
gpgchecked=0
enabled=1
#--------------------------------------------
# 基础命令安装
rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
yum -y install wget
yum -y install net-tools
yum -y install lrzsz
#5.远程镜像配置
# 远程拉取华为云的镜像配置
wget -o CentOS-Base.repo https://repo.huaweicloud.com/repository/conf/CentOS-7-reg.repo
# 查看当前目录列表
ls
#--------------------------------------------------------------
#显示: bak base.repo CentOS-7-reg.repo[内容] CentOS-Base.repo[内容]
#--------------------------------------------------------------
# 重命名
rm -f CentOS-Base.repo
mv CentOS-7-reg.repo CentOS-Base.repo
#6.激活并更新yum库
yum makecache
yum update -y
#7.免密设置
cd ~
ssh-keygen -t rsa
ls -la
#------------------------------------------
.ssh
#------------------------------------------
ls .ssh/
#------------------------------------------
id_rsa[私钥] id_rsa.pub[公钥]
#------------------------------------------
# 本机免密
cat .ssh/id_rsa.pub >> .ssh/authorized_keys
ssh root@master01
ls .ssh/
#--------------------------------------------------------------
id_rsa[私钥] id_rsa.pub[公钥] authorized_keys known_hosts
#--------------------------------------------------------------
ssh-copy-id -i .ssh/id_rsa.pub root@