RE: TCP/IP connections refused

Yes. Its working from my local also.

$ psql -h localhost -p 5432
Password for user postgres:
psql (12.1 (Debian 12.1-1.pgdg100+1))
SSL connection (protocol: TLSv1.3, cipher: TLS_AES_256_GCM_SHA384, bits: 256, compression: off)
Type "help" for help.

postgres=#

From: Siddharth Karandikar <siddharth(dot)karandikar(at)gmail(dot)com>
Sent: donderdag 29 oktober 2020 10:33
To: Bhattacharjee, Soumik <soumik(dot)bhattacharjee(at)kpn(dot)com>
Cc: pgsql-admin <pgsql-admin(at)postgresql(dot)org>; pgsql-admin(at)lists(dot)postgresql(dot)org
Subject: Re: TCP/IP connections refused

Did you try connecting to it using `psql`? Do you get the same error with that?

On Thu, Oct 29, 2020 at 1:48 PM <soumik(dot)bhattacharjee(at)kpn(dot)com<mailto:soumik(dot)bhattacharjee(at)kpn(dot)com>> wrote:
Hi Experts,

We are trying to connect from Java(Microservices) applications to Database and getting below issues :

org.postgresql.util.PSQLException: Connection to XXXXXXX:5432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.

Please suggest your inputs and suggestions for solution.

The things I did :

1. Firewall/Ports are open from DB server for inbound traffic.
2. Added application IP ranges in pg_hba.conf file and restarted the Postgres instance.
3. The listen_addresses=’*’ is set to.
4. $ lsof -n -u postgres |grep LISTEN

postgres 26802 postgres 3u IPv4 19104770 0t0 TCP *:postgresql (LISTEN)

postgres 26802 postgres 4u IPv6 19104771 0t0 TCP *:postgresql (LISTEN)

1. $ netstat -ltnp | grep postgres

(Not all processes could be identified, non-owned process info

will not be shown, you would have to be root to see it all.)

tcp 0 0 0.0.0.0:5432<http://0.0.0.0:5432> 0.0.0.0:* LISTEN 26802/postgres

tcp6 0 0 :::5432 :::* LISTEN 26802/postgres

1. $ cat /etc/postgresql/12/main/postgresql.conf | grep port

port = 5432 # (change requires restart)

#ssl_passphrase_command_supports_reload = off

Thanks