I just installed PostgreSQL on Snow Leopard and can't connect to the database server via pgAdmin 3.
I'm on my local machine, however I keep getting this error:
Could not connect to server: connection refused. Is the server running on host "localhost" (127.0.0.1) and accepting TCP/IP connections on port 5423?
I'm a bit of a noob when it comes to Postgres, so I'm not really sure what the problem is.
I can, however, log in through the command line, via psql -U postgres, and start and stop the server successfully.
Any help would be much appreciated.
The error message pointed out that you tried to connect to server on port 5423. However, postgres server listens on 5432 by default.
From your above comment (SHOW port; gives me "5432"), I think you need to change the port to 5432!
UPDATE: Tuan Dang spotted it. I'll leave this answer in place in case it helps someone else for whom the issue isn't quite the same.
Since you can connect via the command line, run:
SHOW port;
from psql. You'll probably see that the port is not 5432. You need to connect to the port PostgreSQL is actually running on from your application.
It's also possible that it just isn't listening on TCP/IP. Run:
SHOW listen_addresses;
to see what it's listening for.
The reason you can connect via the command line is likely to be because the command line psql you're using is connecting over a unix socket (since you didn't specify a host) and your app is connecting via tcp/ip.
Related
I get this error message (see below) and do not know what to do about it.
Error message:
"psql: error: connection to server at "localhost" (::1), port 5432 failed: Connection refused (0x0000274D/10061) Is the server running on that host and accepting TCP/IP connections?
connection to server at "localhost" (127.0.0.1), port 5432 failed: Connection refused (0x0000274D/10061) Is the server running on that host and accepting TCP/IP connections? "
I am using Windows 10 (64bit) and have tried the same thing on Kali and Ubuntu and still was not able to use postgresql.
Does anyone have a suggestion what do to? However, please use "language" that I can understand or at least look up simply because I am new to programming (in general). Thank you
P. S. I tried various different things such as using pgAdmin to change ports but cannot solve a problem. I do not know if this is important but I istalled postgresql via Binaries because regular Installer was giving an error message telling me that comspec does not point to cmd.exe even though it actually did...
If you
properly set up your db (installation and initialization using initdb), and if you
have your data directory containing your postgresql.conf and pg_hba.conf among other things, and you
properly started the postgresql service,
then I can assume your problem is in the connection string.
Try to include the superusername and/or db name, your error maybe due to psql connecting to user localhost which does not exist inside your db.
Try to run psql with -U and -d options:
psql -U postgres -d postgres
I am new to Ubuntu operating system and trying to install postgresSQL in my system.
After completing the installation and entering postgres mode when I enter the command pgsql, it gives me this error
psql: error: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?
what could possibly be wrong??
Probably the postgresql server is not running; you can run netstat -adp to see if postgres is listening on port 5432.
If it isn't, then it most likely isn't running; systemctl status postgresql will help identify if it is even installed, and if it has run into any issues (for further details, see https://mydbanotebook.org/post/troubleshooting-01/)
If it is running and seems healthy, then it might not be configured to accept connections in whichever way you are connecting (which user, database, host/network etc) - see details about the pg_hba.conf file that includes rules for this - https://www.postgresql.org/docs/9.1/auth-pg-hba-conf.html
After install, you must create an instance with initdb.
Later, change the listen_address to *, restart the service and now you can check the port.
Check the pg log for the message: "postgres is ready to accept connections"
New to web development. Trying to connect and register new server for pgAdminIII. (using cloud 9 ide)..
I get this error when viewing in the browser..
_PG::CONNECTION BAD _
could not connect to server: Connection refused Is the server running on
"localhost" (::1) and accepting TCP/IP connections on port 5432?
could not connect to server: Connection
refused Is the server running on host "localhost"
(127.0.0.1) and accepting TCP/IP connections on port 5432
PS. trying to access via new user "ubuntu" SUPERUSER created..
How can I fix this?
PPS. On cloud 9's community forum, an employee says..
"Only ports 8080, 8081 and 8082 are open for workspaces so if you want to access the DB externally you'll need to run it on one of these ports. Make sure you can access it with curl from a local terminal and ensure it's listening on 0.0.0.0 not 127.0.0.1, as the latter only allows local connections."
Lastly, their ide comes with postgres installed, all I needed to do, was set it up..
How do I use the above info while trying to register the new server in order to use the gui?
Let me know if I need to include anything else.
Thanks.
You should enable postgresql service by performing sudo service postgresql start.
After enabling, you can access the console using sudo sudo -u postgres psql and CREATE ROLE ubuntu LOGIN REPLICATION CREATEDB CREATEROLE SUPERUSER; to allow Rails take advantage of your database.
Rails also complains about template read error after creating ubuntu role.
To fix the template error, read up on this.
You should get PostgreSQL server up and running in no time. Happy coding!
Edit:
You should only use localhost for local and system resources (i.e. psql, etc.) while 0.0.0.0 is for everything else like running Rails or Apache server.
I have PostgreSQL 9.4 running on a Linux VPS, and I need to be able to connect to it over SSH from both Linux and Windows clients. (I will later need to connect to multiple servers, and so that all clients use the same port numbers, I'm forwarding to port 5551 for the first server, then I will use 5552, 5553, etc.)
From a Linux client I just run ssh -fNg -L 5551:localhost:5432 user#remote1.com and connect to localhost:5551 with PGAdmin3 or any other client app. Works great.
On Windows, I'm using PuTTY and Pageant. I got the connection to user#remote1.com via terminal working, then I went to the SSH Tunnels and added L5432 localhost:5551. Terminal connection still works, but when I try to connect with PGAdmin3 to localhost:5551 I get an error:
could not connect to server: Connection refused (0x0000274AD/10061) Is the server running on host "localhost" (::1) and accepting TCP/IP connections on port 5551?
I resolved it. Like many things, this is obvious in hindsight. I had things backward in the SSH Tunnels setup in PuTTY. It needs to be L5551 remote1.com:5432
Postgres.app documentation says this, verbatim: Once your path is correctly set up, you should be able to run psql without a host. (If not, check that the correct version is being loaded in the PATH by doing which psql) This is not so for me.
Here's where I'm at. WITHOUT the Postgres.app on (No elephant anywhere):
$ which psql
/Applications/Postgres.app/Contents/Versions/9.3/bin/psql
This is correct, and what Heroku says to look for. Heroku also tells me the command below should work, but it doesn't:
$ psql -h localhost
psql: could not connect to server: Connection refused
Is the server running on host "localhost" (::1) and accepting
TCP/IP connections on port 5432?
could not connect to server: Connection refused
Is the server running on host "localhost" (fe80::1) and accepting
TCP/IP connections on port 5432?
could not connect to server: Connection refused
Is the server running on host "localhost" (127.0.0.1) and accepting
TCP/IP connections on port 5432?
however I can get it to work when I double click postgres.app and turn it on.
$ psql
psql (9.3.3)
Type "help" for help.
johncurry=#
The docs specifically say that it should work WITHOUT the localhost. Am I set up correctly or do I need to change something? The code right above makes me feel like everything is working properly, but the "should work without a host" thing makes me unsure.
You're using the psql from postgres.app. It's configured to, by default, connect to the database server from postgres.app. That won't work if postgres.app is not running.
With our without -h, you must have postgres.app running.
If you want to run a background PostgreSQL server, postgres.app isn't what you want. Install from Homebrew or use the EnterpriseDB installer packages.