How to establish port mapping or realize the function of simultaneously accessing the external network and the internal

kelfen

The requirements are as follows:

Computer A has a public IP, and now needs to provide WEB services on computer A, but the database server is installed on B

B does not have a public network IP, and computer A can form a local area network so that A's Web services can be accessed on the public network and the internal network?

1. How to implement port mapping? (Both the WEB service and the database service are installed on B, and A port mapping is provided on A. Is it possible?)

2. How does A install dual network cards?

sh280303120

B does not have a public network IP, and computer A can form a local area network, so that both the public network and the internal network can access A's Web service?
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If you do n’t need a database connection, use the intranet IP.

ricoll

If your database server is to provide services for the website on A, there is no need for B to be accessible by the Internet.

If you want to get both the WEB and the database on B, and A is only a front-end server, enable routing and remote access services on A, configure it as a NAT server, perform port mapping, and map out the required ports on B. can. A requires 2 network cards

rpdewt

It is generally not recommended to expose the DB server to the public network