Unable to connect to Postgresql on a server

Question

On Digital Ocean I'm able to connect to Postgresql:

psql -d my_db -U my_name

for which it asks me a password and I get in successfully. But from my local computer I'm unable:

psql -d my_db -U my_name -h x.x.x.x

Nothing happens at all. Here's my /etc/postgresql/9.4/main/pg_hba.conf

# Database administrative login by Unix domain socket
local   all             postgres                                peer

# TYPE  DATABASE        USER            ADDRESS                 METHOD

# "local" is for Unix domain socket connections only
local   all             all                                     md5
# IPv4 local connections:
host    all             all             0.0.0.0/0                md5
# IPv6 local connections:
host    all             all             ::1/128                 md5
# Allow replication connections from localhost, by a user with the
# replication privilege.
#local   replication     postgres                                peer
#host    replication     postgres        127.0.0.1/32            md5
#host    replication     postgres        ::1/128                 md5

and you've opened the appropriate port in your firewall? – pete Jun 05 '16 at 13:36 — pete, Jun 05 '16 at 13:36

tweeks200 · Accepted Answer · 2016-06-05T14:20:20.277

2

Check and make sure postregsql is listening on your interface IP (not just 127.0.0.1).

ss -ltn

If not, modify the listen_addresses to * or the IP you want. These settings should be in postgresql.conf file generally located in the postgresql data directory.

https://www.postgresql.org/docs/9.4/static/runtime-config-connection.html

edited Jun 05 '16 at 14:20

answered Jun 05 '16 at 13:55

tweeks200

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I think yes --> `LISTEN 0 128 127.0.0.1:5432 *:*` – Oskar K. Jun 05 '16 at 14:01
actually, that's only on local interface? how to get it to listen on any ip interface? – Oskar K. Jun 05 '16 at 14:02
Check you postgresql.conf file, there should be a `listen_addresses` directive you can modify to your IP or to * for all addresses on that server. – tweeks200 Jun 05 '16 at 14:02
there's no "listen_addresses". – Oskar K. Jun 05 '16 at 14:05
hmm, sure you are in postgresql.conf (not pg_hba.conf)? if it's not there, try adding it. – tweeks200 Jun 05 '16 at 14:07
it was pg_hba.conf. `postgresql.conf` doesn't exist on my server. why? – Oskar K. Jun 05 '16 at 14:14
try running `SHOW config_file;` and see if it tells you at least where they should be. you may need to be logged in as postgresql or have root priv to see them. – tweeks200 Jun 05 '16 at 14:19

Unable to connect to Postgresql on a server

1 Answers1