I am trying to connect to a database from a remote computer. According to the guides, I configured the files in the pg_hba file by setting 0.0.0.0/0 for IPv4, similarly for IPv6 and for the file in PostgreSQL listen_addresses = '*'. The firewall allowed any connections to port 5432. I use pgAdmin try 4 and in the server settings - the host/addresses for some reason remained on localhost, every time I try to insert my network address there (in X.X.X.0 does not work), a long download occurs, after which the password for the Postgres database user is requested and the error "connecting to the server on "H.H.H.0", port 5432 failed...". At the same time, everything works on localhost. What am I doing wrong?
I`m using postgresql database on my web server (ubuntu + nginx) and it works with backend app. I want to connect remotely using pgAdmin
but it always throw this error:
could not connect to server: Connection timed out(0x0000274C/10060)
Is the server running on host "ip" and accepting
TCP/IP connections on port 5432?
I already add to my pg_hba.conf this line:
host all all all password
and also add to postgresql.conf line:
listen_addresses = '*'
netstat -nlt does next result, and it`s enough in tutuorials i found, but still cant access my database
Found a solution, it works as well after this command:
sudo ufw allow 5432/tcp
Open file named pg_hba.conf
sudo vi pg_hba.conf
and add this line to that file
host all all 0.0.0.0/0 md5
It allows access to all databases for all users with an encrypted password
restart your server
sudo /etc/init.d/postgresql restart
I have the following lines in pg_hba.conf. Postgres is installed on a Windows server.
# TYPE DATABASE USER ADDRESS METHOD
# IPv4 local connections:
host all all 127.0.0.1/32 md5
#host all all myip md5
# IPv6 local connections:
host all all ::1/128 md5
# Allow replication connections from localhost, by a user with the
# replication privilege.
host replication all 127.0.0.1/32 md5
host replication all ::1/128 md5
I would like to allow connection only from one more public IP address. How can I achieve that? As soon as I enable the above line IP: Postgres doesn't start.
Looking for some guidance.
To open the port 5432 edit your /Program Files/PostgreSQL/10/data/postgresql.conf and change
# Connection Settings -
listen_addresses = '*' # what IP address(es) to listen on;
In /Program Files/PostgreSQL/10/data/pg_hba.conf
# IPv4 local connections:
host all all 0.0.0.0/0 md5
Now restate the Postgres server use cmd
pg_ctl -D "C:\Program Files\PostgreSQL\10\data" restart
I run postgres on several Windows servers (Windows Server 2012 R2, Windows Server 2016) as a part of a commercial framework running on an Apache tomcat webserver. The local connection worked fine. However, I want the same postgres server to be accessible for another framework (Cakephp) on another server (Red Hat Enterprise Linux) on the same server farm. This used to work until I upgraded to postgres 9. Now I had to upgrade to postgres 10. No matter what I tried, I failed.
Here is what I did to solve the problem:
Find your local postgres configuration files. They are usually in the same directory as the postgres tablespace, in my case:
d:\PG10Data\postgresql.conf.
This file has to contain the following lines:
# - Connection Settings:
listen_addresses = '*' # what IP addresses/interfaces to listen on
port = 5432
The next file to be modified is the pg_hba.conf (hba = host based access):
# TYPE DATABASE USER ADDRESS METHOD
# some sample entries:
# this will open UP ALL REMOTE IPv4 connections, do not open up permanently
host all all 0.0.0.0/0 md5
# only 1 database for 1 user from 1 IPv4 address:
host yourdatabasename yourusername 10.15.17.13/32 md5
# don not forget the "/32", otherwise the postgres server will not start up!
After editing these files, restart the postgres server.
You can run
netstat -a -n | findstr 5432
to see if the postgres listener is running.
You can also run the following to test connectivity from the Windows command prompt:
psql -Uyourusername -dyourdatabasename -p5432 -hlocalhost
This should work at any time. The next level will be to use your computer's local IPv4 address. This you can find out with
ipconfig
This will tell you your local IPv4 address. Use this in the following command:
psql -Uyourusername -dyourdatabasename -p5432 -hyourlocalip
My problem was, this command failed. Since I ran it directly on my server, it could not be the local Windows firewall.
The solution:
There is a 2nd configuration file:
d:\PG10Data\postgresql.auto.conf
The file starts ominously with the following 2 lines:
# Do not edit this file manually!
# It will be overwritten by the ALTER SYSTEM command
And it ends:
listen_addresses = 'localhost'
I tried the ALTER SYSTEM command when I was logged on locally as postgres via psql, but no success.
In the end I turned cheeky and changed the entry in d:\PG10Data\postgresql.auto.conf to;
listen_addresses = '*'
Bingo! After a postgres restart, remote access worked like a charm on both Windows servers.
N. B. Don't forget the Windows Firewall: Open port 5432 for remote access. Also check there are no firewalls in the network the block access to port 5432 from your remote client.
It would be nice if someone were able to tell me how I should have changed the parameter without editing the postgresql.auto.conf, but at least both of my framesworks - both on the local and the remote server - are working.
That is incorrect syntax: myip is not an IP address, and the /32 after it is missing.
I am trying to connect to a Postgres database installed in a remote server using the following command:
psql -h host_ip -U db_username -d db_name
This is the error that occurs:
psql: could not connect to server: Connection refused
Is the server running on host "<host_ip>" and accepting
TCP/IP connections on port 5432?
Postgres installed version is 9.4.
Host operating system: Ubuntu 15.04
Client operating system: Centos 7
I already tried the following but the issue remains unresolved:
Edited pg_hba.conf file to include
host all all 0.0.0.0/0 md5
Edited 'postgresql.conf' and changed the listen parameter to
listen_addresses='*'
Restarted Postgres service.
Disabled firewall and iptables on host and client.
I checked by running the psql command locally and it worked.
I tried the second solution given in this question. Running nmap gave me the following output:
Starting Nmap 6.47 ( http://nmap.org ) at 2015-09-07 18:08 IST Nmap scan report for 10.17.250.250 Host is up (0.0000040s latency). Not shown: 997 closed ports PORT STATE SERVICE 22/tcp open ssh 25/tcp open smtp 80/tcp open http
Am I missing something? Hope someone can help.
cd /etc/postgresql/9.x/main/
open file named postgresql.conf
sudo vi postgresql.conf
add this line to that file
listen_addresses = '*'
then open file named pg_hba.conf
sudo vi pg_hba.conf
and add this line to that file
host all all 0.0.0.0/0 md5
It allows access to all databases for all users with an encrypted password
restart your server
sudo /etc/init.d/postgresql restart
Check the port defined in postgresql.conf. My installation of postgres 9.4 uses port 5433 instead of 5432
I have struggled with this when trying to remotely connect to a new PostgreSQL installation on my Raspberry Pi. Here's the full breakdown of what I did to resolve this issue:
First, open the PostgreSQL configuration file and make sure that the service is going to listen outside of localhost.
sudo [editor] /etc/postgresql/[version]/main/postgresql.conf
I used nano, but you can use the editor of your choice, and while I have version 9.1 installed, that directory will be for whichever version you have installed.
Search down to the section titled 'Connections and Authentication'. The first setting should be 'listen_addresses', and might look like this:
#listen_addresses = 'localhost' # what IP address(es) to listen on;
The comments to the right give good instructions on how to change this field, and using the suggested '*' for all will work well.
Please note that this field is commented out with #. Per the comments, it will default to 'localhost', so just changing the value to '*' isn't enough, you also need to uncomment the setting by removing the leading #.
It should now look like this:
listen_addresses = '*' # what IP address(es) to listen on;
You can also check the next setting, 'port', to make sure that you're connecting correctly. 5432 is the default, and is the port that psql will try to connect to if you don't specify one.
Save and close the file, then open the Client Authentication config file, which is in the same directory:
sudo [editor] /etc/postgresql/[version]/main/pg_hba.conf
I recommend reading the file if you want to restrict access, but for basic open connections you'll jump to the bottom of the file and add a line like this:
host all all all md5
You can press tab instead of space to line the fields up with the existing columns if you like.
Personally, I instead added a row that looked like this:
host [database_name] pi 192.168.1.0/24 md5
This restricts the connection to just the one user and just the one database on the local area network subnet.
Once you've saved changes to the file you will need to restart the service to implement the changes.
sudo service postgresql restart
Now you can check to make sure that the service is openly listening on the correct port by using the following command:
sudo netstat -ltpn
If you don't run it as elevated (using sudo) it doesn't tell you the names of the processes listening on those ports.
One of the processes should be Postgres, and the Local Address should be open (0.0.0.0) and not restricted to local traffic only (127.0.0.1). If it isn't open, then you'll need to double check your config files and restart the service. You can again confirm that the service is listening on the correct port (default is 5432, but your configuration could be different).
Finally you'll be able to successfully connect from a remote computer using the command:
psql -h [server ip address] -p [port number, optional if 5432] -U [postgres user name] [database name]
Make sure the settings are applied correctly in the config file.
vim /etc/postgresql/x.x/main/postgresql.conf
Try the following to see the logs and find your problem.
tail /var/log/postgresql/postgresql-x.x-main.log
Following configuration, you need to set:
To open the port 5432 edit your /etc/postgresql/9.1/main/postgresql.conf and change
# Connection Settings -
listen_addresses = '*' # what IP address(es) to listen on;
In /etc/postgresql/10/main/pg_hba.conf
# IPv4 local connections:
host all all 0.0.0.0/0 md5
Now restart your DBMS
sudo service postgresql restart
Now you can connect with
psql -h hostname(IP) -p port -U username -d database
Step 1: edit file potgresql.conf
file location should be : etc/postgresql/10/main/
Look for:
#Connection Settings -
#listen_addresses = '' # what IP address(es) to listen on;
remove # before listening addresses
add '*' :
listen_addresses = '*'
Step 2: edit file pg_hba.conf
file location should be : etc/postgresql/10/main/
add below given line at the end
host all all 0.0.0.0/0 md5
Step 3: restart postgres server
sudo /etc/init.d/postgresql restart
Step 4: check postgres server status
sudo netstat -plunt |grep postgres
Make sure you are using same port to access the DB
Mine was quite straightforward if you are on a Mac try:
brew install postgres
This will tell you if you have it already install and what version or install the latest version for you if not then run
brew upgrade postgresql
This will make sure you have the latest version installed then finally
brew services start postgresql
This will start the service again. I hope this helps someone.
I think you are using the machine-name instead of the ip of the host.
I got the same error when i tried with machine's name. Because, It is allowed only when both the client and host are under same network and they have the same Operating system installed.
In my case, I did not change azure default security policy in management portal. The original is port 22 allowed and the rest are all denied. As long as I add 5432 port, everything becomes good.
The following helped me on macos Mojave:
$sudo mv /usr/local/var/postgres /usr/local/var/postgres.save
$brew uninstall postgres
$brew install postgres
See the port and make a port change in postgresql.conf. My installation of postgres 9.4 uses port 5431 or 5434 instead of 5432.
If it say the port is in use so change the port.
And check if you give password in psql installation so give the password in file and save it.
In my case I had removed a locale and generated another locale. Database failed to open because of fatal errors in the postgresql.conf file, on 'lc_messages', 'lc_monetary', 'lc_numberic', and 'lc_time'.
Restoring the locale sorted it out for me.
Another situation,postgresql.confandpg_hba.conffile not locate at /etc/postgresql/9.1/main/.Because postgres can start at any location you set.
For example when you use command pg_ctl -D /tmp/pgsql/ start ,the postgresql.conf and pg_hba.conf will located at /tmp/pgsql/.
I had the exact same problem, with my configuration files correct. In my case the issue comes from the Eduroam wifi I used : when I connect via another wifi everything works. It seems that Eduroam blocks port 5432, at least in my university.
Try to migrate your database. For instance, if you are using Heroku to host your project and with Django, then try heroku run python manage.py migrate command; the error should go away.
I had a problem like this where I had to ssh into a server and than run a query in psql console so the query was in a script but everytime I got this error psql not found so what I did was just added the psql full path from the bin which we get from cat .bash_profile and its done
PATH=$PATH:/usr/local/pgsql/bin:/usr/local/mysql/bin
So I added the whole /usr/local/mysql/bin/psql intead of just psql for remote execution.
and another one here:
both host and remote are on real servers
you need '*' exactly.
'localhost , xxx.xxx.xxx.xxx' will not work. all these answers(i've seen two) should be wiped out.
what you don't need : host all all 0.0.0.0/0 md5 and this stuff
For me, I just removed the existing PostgreSQL 14 Server which was on the left-hand side of the pgAdmin4 GUI interface under the servers and then I manually added a new server from the option which is inside Quick Links of pgAdmin4.
I followed the documentation of bitnami.com.
I had a problem with access to external server via 5432.
I noticed that any network but mine saw the service
nmap server -p 5432
Fortunatelly, I recalled that I was playing with exposing my internal postgres server to outside world using my mikrotik router.
Somehow it effectively closed external 5432 for internal network.
As soon as I removed all nat rules with 5432 port - it worked like a charm.
I want to connect to postgresql from another server but occur below error. i search and find some result like below but after do these again error occured
in postgresql.conf change listen_addresses from localhost to *
in pg_hba.conf change 127.0.0.1/32 to 0.0.0.0/0
reboot server
Error:
could not connect to server: Connection refused.Is the server running
on host "Ip Number"
and accepting.TCP/IP connections on port 5432?
I suggest that you should do as the following steps.
Check your PostgreSQL SERVER is running.
Check the listen_addresses parameter ( postgresql.conf )
Check the port number of your postgresql ( The port parameter of
postgresql.conf )
Check your the firewall policy of your database server , set
that allow the port of your postgresql.
If you want to connect your db from another server, may be you
shoud set the pg_hba.conf as following :
# TYPE DATABASE USER CIDR-ADDRESS METHOD
local all all trust
host all all 0.0.0.0/0 md5
Try to check if the network traffic reaches the server. You can sniff the network traffic to see what happen. Meassure on client and server and check the communication.
sudo tcpdump -A -n -s 0 -w test_on_client.log port 5432
After you try your connect stop tcpdump with CTRL-C and inspect the log file with Wireshark.
This procedure will find every network connection problems.