Ubuntu by static IP variable dynamic IP

Modify/etc/network/interfacs
sudo vim/etc/network/interfaces

The dynamic IP settings are as follows:

# The Loopback network interface
Auto Lo
Iface Lo inet Loopback

# The Primary network interface
Auto Eth0
Iface eth0 inet DHCP

The static IP settings are as follows:

Auto Eth0
Iface eth0 inet Static
Address 192.168.195.2
Netmask 255.255.255.0
Gateway 192.168.195.1

This is to pay attention to the gateway's settings and to set the IP address of "VMware Network Adapter VMnet1".

Ubuntu by static IP variable dynamic IP