usually using DHCP，but every time you start up your centos os,dhcp may distribute a different ip for your CENTOS!

First step：

vmware disable DHCP but allow NAT pattern

please be care for IP(G) as follow,

it will be used in configure script.

Second step:reboot your centos OS and modify some scripts to configure

cd /etc/sysconfig/network-scipts

modify ： vi ifcfg-ens33

Third step:restart your network service

service network restart

 Fourth step ，check ip：

ip addr

you'll find the static ip setted during Second step appeared!!

so try to reboot your CENTOS to find whether the ip would be changed!

Fifth step:test cmd ping

ping baidu：

on your windows OS ping  this  static ip.

completely oj8k!

some concepts：

gate mask：閘道器路由器的ip

dns：address of dns server，dns server can translate your domain name into ip address

權威定義：1，是一個由分層的DNS伺服器實現的分散式資料庫

                2，一個使得主機能夠通查詢分散式資料庫的應用層協議

net mask：to help judge whether ip1 and ip2 are in the same network

ip address：every computer(device)  has an unique id(like id-card number) during the same network