Is it possible to bind to a remote Linux network interface?

Question

linux

Hey! There are 2 geographically separated Linux servers with IP addresses 1.2.3.4 and 5.6.7.8 respectively. Is there any way to have a virtual interface on server 1.2.3.4 with address 5.6.7.8 (or from its network) so that an application running on server 1.2.3.4 can bind to a local clone of 5.6.7.8 and use it to access the network ? Thank you!

Answer 1

Yes. proxy on the desired host is called

Answer 2

I am afraid it is not. The task looks too strange. After all, no one prevents the application from binding to any port on the local server, and then using the address translation rules to achieve the desired result. Transferring traffic from server to server is much easier.

Answer 3

If the application knows how to work with DNS, then on the 1.2.3.4 server you can add the name srv1.domain.ru 127.0.0.1 to /etc/hosts.
srv1.domain.ru is a type of DNS server name.
Or HAproxy.