配置网络

  1. vi /etc/sysconfig/network-scripts/ifcfg-eth0

先让它动态分配一个ip地址

  1. ONBOOT=yes
  2. service network restart
  3. ip addr

再设置静态ip地址

  1. BOOTPROTO="static"
  2. IPADDR=192.168.31.250
  3. NETMASK=255.255.255.0 
  4. GATEWAY=192.168.31.1
  6. DNS1=114.114.114.114
  7. DNS2=8.8.8.8
  9. service network restart
  10. ip addr

配置DNS

  1. 检查NetManager的状态：systemctl status NetworkManager.service
  2. 检查NetManager管理的网络接口：nmcli dev status 
  3. 检查NetManager管理的网络连接：nmcli connection show
  4. 设置dns：nmcli con mod enp0s3 ipv4.dns "114.114.114.114 8.8.8.8"
  5. 让dns配置生效：nmcli con up enp0s3

配置本机的hostname到ip地址的映射

  1. vi /etc/hosts

关闭防火墙

  1. systemctl stop firewalld.service
  2. systemctl disable firewalld.service

配置yum

  1. yum clean all
  2. yum makecache
  3. yum install wget

安装JDK

  1. 1、将jdk-8u131-linux-x64.rpm通过WinSCP上传到虚拟机中
  2. 2、安装JDK：rpm -ivh jdk-8u131-linux-x64.rpm
  3. 3、配置jdk相关的环境变量
  4. vi .bashrc
  5. export JAVA_HOME=/usr/java/latest
  6. export PATH=$PATH:$JAVA_HOME/bin
  7. source .bashrc

ssh免密码互相通信

  1. ssh-keygen -t rsa
  2. # ssh-keygen命令默认会将公钥放在/root/.ssh目录下
  3. cd /root/.ssh
  4. cp id_rsa.pub authorized_keys
  5. # 使用ssh-copy-id -i hostname命令将本机的公钥拷贝到指定机器的authorized_keys文件中
  6. ssh-copy-id -i hostname