centos7 修改地址，防火墙策略

1、centos7的网卡重启方法：service network restart
centos7的网卡重启方法：systemctl restart network

2、DNS配置文件：cat /etc/resolv.conf
设置主机和IP绑定信息：cat /etc/hosts
设置主机名：cat /etc/hostname

3、可以使用nmtui文本框方式修改IP

4、关闭防火墙并设置开机不启动
查看防火墙状态：systemctl status firewalld.service
关闭：systemctl stop firewalld
开启：systemctl start firewalld
开机自动关闭：systemctl disable firewalld
开机自动启动：systemctl enable firewalld
查看开机是否启动：chkconfig --list|grep network(RHLE6)

5、修改ip

cd /etc/susconfig/network-scripts/

vi /ifcfg-ens33

TYPE=Ethernet
BOOTPROTO=dhcp
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
NAME=ens160
UUID=ad66c738-578f-43cc-ad3b-a165ea1cec53
DEVICE=ens160
ONBOOT=no

修改为：

TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
NAME=ens160
UUID=ad66c738-578f-43cc-ad3b-a165ea1cec53
DEVICE=ens160
ONBOOT=yes
IPADDR=192.168.0.250
NETMASK=255.255.255.0
GATEWAY=192.168.0.254
DNS1=114.114.114.114

 

更改后reboot重启系统，重启后查看修改后配置用ifconfig命令