Sunflower Virtual LAN-zero-cost VPN management

Sunflower Virtual LAN-zero-cost VPN management

Method
Assume that a company is headquartered in Shanghai and has branches in Tianjin, Hangzhou, Guangzhou, and Beijing. Guangzhou often needs to log on to the server of the Shanghai company to download files and access the OA system of the company.

First, use Sunflower to build a virtual private network named "wide network:


Of course, you can define and change the network name by yourself: Click the sunflower VPN service list, click the VPN network you want to change, and click "Network Properties" to change the network name,


Click "Save changes.
As you can see, in the current VPN network, there are two computers that do not belong to the same LAN. One computer is located in Shanghai, and the assigned virtual IP address is 172.15.202.57; the virtual IP address assigned by a computer in Guangzhou is 172.15.202.35. Let's see if they are accessible. Ping the machine in Shanghai from the machine in Guangzhou:


The packet loss rate is 0, indicating that machines in Guangzhou can Ping machines in Shanghai.
Ping the machine in Guangzhou from the machine in Shanghai:


The packet loss rate is also 0, indicating that machines in Shanghai can Ping machines in Guangzhou.
After confirming that the building is successful, we need to use it in practice. Text sharing
Now there is a folder named "professional toolkit" on this computer in Shanghai. How can this file be downloaded by colleagues in Guangzhou?

First, set the "professional toolbox" folder to share,



After it is set to share, enter the computer in Shanghai, click computer -- start -- run, and enter the virtual IP address of the computer in Guangzhou: 172.15.202.57,


Press enter to enter the system username and password of the computer where the shared folder is located,


Enter the System user name and password, and then enter the shared folder directory,


Double-click "professional toolbox" to enter the folder,


You can view or download the required files. Access to Web Services is now installed with the Tongda OA service on this computer in Shanghai,
Now we want to access the Oa service from a computer in Guangzhou, because they are already in the same LAN, and we can see that Tongda Oa uses port 80, and its access mode is also B/S architecture, so we should use the virtual IP address of this machine in Shanghai: 172.15.202.57 for access, next, we can try to use 172.15.202.57 on the machine in Guangzhou to access it,
As you can see, through the VPN service established by sunflower, computers in two locations can use the Intranet IP address allocated by the VPN to access the WEB service, which is very convenient to use. Similarly, if it is a website, FTP service, financial software, ERP system, or guanjiapo software, it can also be accessed.