Remote database connections fail, what could be the problem?

Question

linux

When connecting, an error occurs:
psql: could not connect to server: Connection refused
Is the server running on host "my ip" and accepting
TCP/IP connections on port 5432?
Set listen_addresses = '*'
In addition, host all all 0.0.0.0/0 md5 is written in pg_hba.conf

What else could be the problem?

Answer 1

пишем в гугле postgresql allow remote connections
и узнаем, что нужно добавить в pg_hba.conf разрешенные хосты типа:
host all all 192.168.101.20 trust