Mapping Public IP Address to Another Server

Situation

Server A: Using internal IP A

Server B: Using internal IP B

Public IP A: Mapped to internal IP A, accessing Server A resource

Public IP B: Mapped to internal IP B, accessing Server B resource

Goal

Server A: Using internal IP C

Server B: Using internal IP B and A

Public IP A: Mapped to internal IP A, accessing Server B resource

Public IP B: Mapped to internal IP B, accessing Server B resource

Problem

Under the above goal configuration, configured with the help of this article, accessing public IP A cannot access Server B resource.

Solution

On Server B, instead of restarting the network service once using command service network restart, restart it twice by execute the same command once more. This will immediately allow access of Server B resource from Public IP A.

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