Message-ID: <ed7858d8a1755dd333f572a3fbed86d2fe68b175.camel@osdev.nl>
Subject: Re: [MASSMAIL]Cannot connect to postgresql on port 5432
From: "Peter M. Groen" <peter@osdev.nl>
To: soumik.bhattacharjee@kpn.com, gilberto.castillo@etecsa.cu
Cc: pgsql-admin@lists.postgresql.org, pgsql-admin@postgresql.org
Date: Tue, 24 Dec 2019 11:06:31 +0100
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It also possible to change the '*' to the ip-address of your NIC.
Or use a comma separated list for all ip-addresses you want to allow. 

listen_addresses='<your_ip_address>, 127.0.0.1'

pg_hba is only used for client-addresses and connection types...
-- 
Open Systems Development B.V.
Peter M. Groen
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On Mon, 2019-12-23 at 19:44 +0000, soumik.bhattacharjee@kpn.com wrote:
> Thanks Gilberto, yes I did that, but won't this be a security issue?
> 
> I tried this below in pg_hba.conf , but no help.
> 
> host all all 0.0.0.0/0 md5
> 
> So I think listen_addresess ='*' is the only way out.
> 
> Thanks..
> 
> 
> -----Original Message-----
> From: gilberto.castillo@etecsa.cu <gilberto.castillo@etecsa.cu> 
> Sent: maandag 23 december 2019 20:34
> To: Bhattacharjee, Soumik <soumik.bhattacharjee@kpn.com>
> Cc: pgsql-admin@lists.postgresql.org; pgsql-admin@postgresql.org
> Subject: Re: [MASSMAIL]Cannot connect to postgresql on port 5432
> Importance: High
> 
> Hi
> 
> You might change postgresl.conf the line listening = '*'
> 
> El 2019-12-23 14:30, soumik.bhattacharjee@kpn.com escribió:
> > Hi Experts,
> > 
> > Post installation of  PostgreSQL it is not listening on an IP, only
> > on 
> > localhost.
> > 
> > Please suggest your inputs.
> > 
> > USED BELOW COMMAND FOR INSTALLATIONS –
> > 
> > # APT-GET INSTALL POSTGRESQL-12
> > 
> > postgres=# select version();
> > 
> >                                                      version
> > 
> > -----------------------------------------------------------------
> > -----
> > --------------------------------------------
> > 
> > 
> > PostgreSQL 12.1 (Debian 12.1-1.pgdg100+1) on x86_64-pc-linux-gnu, 
> > compiled by gcc (Debian 8.3.0-6) 8.3.0, 64-bit
> > 
> > (1 row)
> > 
> > ENTRIES IN ::: /ETC/POSTGRESQL/12/MAIN/PG_HBA.CONF
> > 
> > # Database administrative login by Unix domain socket
> > 
> > local   all             postgres                                pee
> > r
> > 
> > #
> > TYPE  DATABASE        USER            ADDRESS                 METHO
> > D
> > 
> > 
> > # "local" is for Unix domain socket connections only
> > 
> > local   all             all                                     pee
> > r
> > 
> > # IPv4 local connections:
> > 
> > host    all             all             127.0.0.1/32            md5
> > 
> > # IPv6 local connections:
> > 
> > host    all             all             ::1/128                 md5
> > 
> > # Allow replication connections from localhost, by a user with the
> > 
> > # replication privilege.
> > 
> > local   replication     all                                     pee
> > r
> > 
> > host    replication     all             127.0.0.1/32            md5
> > 
> > host    replication     all             ::1/128                 md5
> > 
> > NOT CONNECTED
> > 
> > POSTGRES@SRV:/OPT$ NETSTAT -NLP | GREP 5432
> > 
> > (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      0 127.0.0.1:5432          0.0.0.0:*
> > LISTEN      25857/postgres
> > 
> > unix  2      [ ACC ]     STREAM     LISTENING     74234
> > 25857/postgres       /var/run/postgresql/.s.PGSQL.5432
> > 
> > POSTGRES@SRV:~$ TELNET 10.133.214.32 5432
> > 
> > Trying 10.133.214.32...
> > 
> > telnet: Unable to connect to remote host: Connection refused