How to organize secure data exchange between a server in the USA and Singapore?

Question

PostgreSQL

For example, there is a job site, one server in the US and another in Singapore, how to make an ad submitted to a server in the US appear on a server in Singapore? What technology to apply?
How to keep data up-to-date on both servers?
Servers on Debian, PostgreSQL base, Golang language.

Answer 1

in about a million different ways. from database replication (logical, binary) to the watcher program on one of the servers. and you can also fasten the queue, and you can even make a common base.