Automatic write to two Postgresql databases?

Question

PostgreSQL

Greetings!
There are two servers with postgresql. The data is written to the database on one of the servers.
But I want the data to be automatically written to the second database too - for the purpose of backup.
It is clear that you can set up a record in two databases in the code.
But for some reason I am sure that there are some ready-made solutions for this using the database tools.
Tell me, in which direction to dig?
Thank you.

Answer 1

https://postgrespro.ru/docs/postgrespro/9.5/runtim...
Standby, Slave

Answer 2

Data replication