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Concept of network connection
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IP address （IPADDR）
* IP An address is a logical address , Used to identify a host in the network
* IP address = network address + Host address
* IP The address is a 4*8bit（ One byte ） from 0/1 Digital string composed of （IPv4 agreement ）
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Subnet mask （NETWORK）
* Subnet mask has only one function , Is to IP Address is divided into network address and host address
* The subnet mask is used to determine the of any two computers IP Whether the address is in the same subnet
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Default gateway （GETEWAY）
* Connecting two different network devices can be called gateway devices ; The function of gateway is to realize the communication and control between two networks
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Domain name server （DNS）
* DNS Domain name resolution server , Used to resolve domain names （ Domain name and IP Analysis between ）
* If you don't have this thing , When logging in to a website, you must enter the name of the website IP address , Yes DNS You can enter the URL directly
* Domain name can be （www.baidu.com） Resolve as IP address
Network connection mode
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Bridging mode （bridged）
* VMWare The virtual operating system is like an independent host in the LAN , It can access any machine in the network
* The virtual system using bridge mode is related to the host machine , It's like connecting in the same place Hub Two computers on
* Current host IP by 192.168.48.100 virtual machine 192.168.48.xxx
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Network address translation mode （NAT）
* use NAT pattern , Is to let the virtual network system use NAT（ Network address translation ） function , Access the public network through the network where the host machine is located
* NAT Of virtual system in mode TCP/IP Configuration information is provided by VMnet8（NAT） Virtual network DHCP Server provided
* The virtual system cannot communicate with other real hosts in the local area network
Technology