linux系统安装后初始化网络配置

系统 centoOS

网卡桥接  特别注意这个地方

临时修改当前IP地址

ifconfig eth0 192.168.1.200

配置网络 连接外网

vi /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0

HWADDR=08:00:27:EC:9A:D4

TYPE=Ethernet

UUID=b9656ea1-7f88-48fe-ac45-8c5a29cfc833

ONBOOT=yes

NM_CONTROLLED=no

BOOTPROTO=none

IPADDR=192.168.1.200

NETMASK=255.255.255.0

NETWORK=192.168.1.0

GATEWAY=192.168.1.1

PEERDNS=yes

BROADCAST=192.168.1.255

IPV6INT=yes

vi /etc/resolv.conf

nameserver 116.228.111.118

nameserver 192.168.1.1

vi /etc/sysconfig/network

NETWORKING=yes

GATEWAY=192.168.1.1

service network restart

设置HOSTNAME

vi /etc/hosts

192.168.1.200 my01

vi /etc/sysconfig/network

HOSTNAME=my01

同步时间

yum install -y perl

yum install -y ntp

crontab -l >/tmp/crontab.bak

echo "*/10 * * * * /usr/sbin/ntpdate pool.ntp.org | logger -t NTP" >> /tmp/crontab.bak

crontab /tmp/crontab.bak

crontab -l

*/10 * * * * /usr/sbin/ntpdate pool.ntp.org | logger -t NTP

ntpdate pool.ntp.org

CentOS关掉防火墙以及selinux

/etc/init.d/iptables stop

永久关闭:

chkconfig --level 35 iptables off

检查防火墙

chkconfig  --list | grep ip

永久关闭SELinux

vi /etc/selinux/config

SELINUX=disabled

重启系统。