网络配置
# 配置ip vi /etc/sysconfig/network-scripts/ifcfg-ens33 BOOTPROTO=static ONBOOT=yes IPADDR=192.168.92.130 #静态ip GATEWAY=192.168.92.2 #网关 NETMASK=255.255.255.0 DNS1=114.114.114.114 # 关闭防火墙 systemctl stop firewalld # 临时关闭防火墙 systemctl disable firewalld # 禁止开机启动 # 重启网络 service network restart > reboot ping baidu.com
配置hosts
vim /etc/hosts 192.168.192.128 hadoop01 192.168.192.129 hadoop02 192.168.192.130 hadoop03 vim /etc/hostname hadoop01~03 hostnamectl set-hostname #另一种
免密登陆
ssh-keygen #继续按回车(三台都执行) ssh-copy-id -i hadoop01~03 #每台机器上执行(输入ip) ssh ip #登陆指定ip scp -r /home/* 192.168.192.129:/home/
配置环境变量
# JDK vi /etc/profile export JAVA_HOME=/usr/jdk export PATH=$PATH:${JAVA_HOME}/bin # Python vi /etc/profile export PYTHON_HOME=/usr/Python3 export PATH=$PATH:${PYTHON_HOME}/bin source /etc/profile echo $PATH