1、修改主機名稱

[root@hadoop102 ~]# vim /etc/hostname
hadoop102

2、修改靜態(tài)IP

• 修改 ifcfg-ens33 網(wǎng)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

• 重啟網(wǎng)絡
  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、關(guān)閉防火墻

• 關(guān)閉防火墻

[root@hadoop102 ~]# systemctl stop firewalld.service

• 禁止開機啟動防火墻

[root@hadoop102 ~]# systemctl disable firewalld.service

• 判斷防火墻是否啟動

[root@hadoop102 ~]# systemctl is-active firewalld.service
unknown

• 判斷防火墻是否開機激活

[root@hadoop102 ~]# systemctl is-enabled firewalld.service
disabled

• 查看防火墻狀態(tài)

[root@hadoop102 ~]# systemctl status firewalld.service