1、修改主机名称
[root@hadoop102 ~]# vim /etc/hostname
hadoop102
2、修改静态IP
- 修改 ifcfg-ens33 网卡
[root@hadoop102 ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
#BOOTPROTO=dhcp
BOOTPROTO=static
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens33
#UUID=0e352c77-7892-4b38-8fbc-c59c90340b01
DEVICE=ens33
ONBOOT=yes
IPADDR=192.168.2.102
GATEWAY=192.168.2.2
NETMASK=255.255.255.0
DNS1=223.5.5.5
DNS2=223.6.6.6
- 重启网络
方式一
[root@hadoop102 ~]# systemctl restart network.service
方式二
[root@hadoop102 ~]# service network restart
3、配置映射
[root@hadoop102 ~]# vim /etc/hosts
192.168.2.101 hadoop101
192.168.2.102 hadoop102
192.168.2.103 hadoop103
192.168.2.104 hadoop104
192.168.2.105 hadoop105
192.168.2.106 hadoop106
192.168.2.107 hadoop107
4、关闭防火墙
- 关闭防火墙
[root@hadoop102 ~]# systemctl stop firewalld.service
- 禁止开机启动防火墙
[root@hadoop102 ~]# systemctl disable firewalld.service
- 判断防火墙是否启动
[root@hadoop102 ~]# systemctl is-active firewalld.service
unknown
- 判断防火墙是否开机激活
[root@hadoop102 ~]# systemctl is-enabled firewalld.service
disabled
- 查看防火墙状态
[root@hadoop102 ~]# systemctl status firewalld.service
