1) 防火墙设置
# 查看防火墙状态
systemctl status firewalld
# 查看开机是否启动防火墙服务
systemctl is-enabled firewalld
# 关闭防火墙
systemctl stop firewalld
systemctl disable firewalld
# 再次查看防火墙状态和开机防火墙是否启动
systemctl status firewalld
systemctl is-enabled firewalld
1) 防火墙设置
# 查看防火墙状态
systemctl status firewalld
# 查看开机是否启动防火墙服务
systemctl is-enabled firewalld
# 关闭防火墙
systemctl stop firewalld
systemctl disable firewalld
# 再次查看防火墙状态和开机防火墙是否启动
systemctl status firewalld
systemctl is-enabled firewalld
Hadoop集群搭建教程1.需求2.先创建一台虚拟机3.关闭防火墙4.修改ip地址5.配置hosts6.克隆7.设置ssh免密登陆第一台机第二台机第三台机8.解压hadoop和jdk9.配置Hadoop和jdk环境变量10配置Hadoop配置文件11.开启hadoop 1.需求需求: jdk安装包、 Hadoop安装包2.先创建一台虚拟机过程就不演示了3.关闭防火墙1)查看防火墙 service
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