I have a Django project, I want to switch from SQLite to PostgreSQL.
After installation, I can't run the command psql
Here is the traceback:
psql: could not connect to server: Connection refused (0x0000274D/10061)
Is the server running on host "localhost" (::1) and accepting
TCP/IP connections on port 5432?
could not connect to server: Connection refused (0x0000274D/10061)
Is the server running on host "localhost" (127.0.0.1) and accepting
TCP/IP connections on port 5432?
OS: Windows
TCP/IP connections are not enabled by default, so you probably have to edit a file called postgres.conf:
vi /etc/postgresql/9.4/main/postgresql.conf
For you it may reside in a different location. Look for a line saying:
#listen_addresses = '' # what IP address(es) to listen on;
Change it to this:
listen_addresses = '*' # what IP address(es) to listen on;
Right under this there's the port setting. For me it reads:
port = 5432 # (change requires restart)
Higher up in the same file there is a reference to another config file:
hba_file = '/etc/postgresql/9.4/main/pg_hba.conf' # host-based authentication file
Go ahead and edit that file. You should insert a line like this:
host all all 192.168.1.0 255.255.255.0 trust
Your IP may be different. (Once you ensure this is working, you can change "trust" to "md5" for better security.) After doing this, you need to restart the postgres server.
/usr/lib/postgresql/9.4/bin/pg_ctl restart
Related
I am facing this error "OperationalError at /results/
connection to server at "localhost" (127.0.0.1), port 5432 failed: Connection refused
Is the server running on that host and accepting TCP/IP connections?
connection to server at "localhost" (::1), port 5432 failed: Cannot assign requested address
Is the server running on that host and accepting TCP/IP connections?" when I try to run a django application that I just deployed in railway.app.
What is the problem and how can I fix?
When I run the application locally it works well, it is my first time deploying a django application to production and I have no idea how to solve that issue, your help is greatly appreciated.
I just realized that the error is due to not using railway's database. Apparently it was running localhost and my postgres' port, created a postgres database in railway and connected to the deployed django app and it is now working well. Thank you #Laurenz Albe for reminding me that.
I'm currently working with my office server, when i want to connect to the server, i have to use their VPN. I have installed PostgreSQL database in their server and have succesfully migrate data to database from Django project. But, when i want to remote access from HeidiSQL, it always gives me Connection Timed Out Error eventhough i have already connected to their VPN.
I've tried to this code below
/var/lib/pgsql/14/data/pg_hba.conf
host all all 0.0.0.0/0 md5
host all all ::/0 md5
/var/lib/pgsql/14/data/postgresql.conf
listen_addresses = '*'
i have tried to refresh everytime i change files and see if i'm in the correct port but it still gives me Connection Timed Out Error
this is the full error message
could not connect to server: Connection Timed out (0x0000274C/10060). Is the server running on host "xxx.xxx.xxx.xxx" and accepting TCP/IP connections on port 5432 ?
NOTES
OS : CentOS 8
DB : PostgreSQL 14
I'm trying to run a Django server using torify, but when I run torify python3 manage.py runserver I get below error:
Is the server running on host "localhost" (127.0.0.1) and accepting
TCP/IP connections on port 5432?
I've already added this code to the torrc:
HiddenServiceDir /var/lib/tor/hidden_service/
HiddenServicePort 5432 127.0.0.1:5432
HiddenServicePort 5432 localhost:5432
or even just this:
HiddenServiceDir /var/lib/tor/hidden_service/
HiddenServicePort 5432 127.0.0.1:5432
But both of them didn't work.
I suspect the issue is the HTTP proxy in the server. But I am not sure.
I set up a hello world Flask app on Ubuntu, I was able to access the page by
elinks http://localhost:5000, # and
elinks http://127.0.0.1:5000, # but not
But NOT
elinks http://<server_ip_in_LAN>:5000 # I was also not able to remote access the page on another machine
Then I looked at my proxy settings, in /etc/environment, it has the following:
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games"
http_proxy="http://proxy-ip:8080/"
https_proxy="http://proxy-ip:8080/"
ftp_proxy="http://proxy-ip:8080/"
git_proxy="http://proxy-ip:8080/"
no_proxy="localhost,127.0.0.1,localaddress,.localdomain.com"
HTTP_PROXY="http://proxy-ip:8080/"
HTTPS_PROXY="http://proxy-ip:8080/"
FTP_PROXY="http://proxy-ip:8080/"
GIT_PROXY="http://proxy-ip:8080/"
NO_PROXY="localhost,127.0.0.1,localaddress,.localdomain.com"
Further, I use ufw to control the firewall, port 5000 is allowed from anywhere.
And I was able to see the following by running nmap -Pn localhost
$ nmap -Pn localhost
Starting Nmap 7.01 ( https://nmap.org ) at 2017-08-04 21:09 EDT
Nmap scan report for localhost (127.0.0.1)
Host is up (0.00016s latency).
Other addresses for localhost (not scanned): ::1
Not shown: 994 closed ports
PORT STATE SERVICE
22/tcp open ssh
80/tcp open http
3000/tcp open ppp
5000/tcp open upnp
5432/tcp open postgresql
8080/tcp open http-proxy
Nmap done: 1 IP address (1 host up) scanned in 0.09 seconds
However, if I run
nmap -Pn <server_ip_in_LAN>,
the "5000/tcp open upnp" line was missing, implying the port number seems only open to my localhost, but not open to LAN.
Why? How can I solve it?
Thanks in advance.
Flask often use internal host:
127.0.0.1
. So you can connect by server_ip_in_LAN by change host IP:
app.run(host= '0.0.0.0')
I have faced the similar kind of issue when I was trying to set my first pycharm project for flask.
Things you need to check
HTTP Proxy(if you are behind a proxy)
Verify the proxy details if proxy added
Check for port if not already used.
for flask specific(if you want to run on specific host and port)
app.run(host='0.0.0.0',port='5000', debug=True)
It gets started on 0.0.0.0 you can change it to localhost.
i just installed pgadmin iii and try to connect server.
I configured my setting
name:localhost
host: 127.0.0.1
port:5432
username:postgres
but i always get this error
The server doesn't accept connection: the connection library reports
**could not connect to server : Connection refused Is server runing on host "127.0.0.1" and accepting TCP/IP connections on port 5432?
However, i'm runing django and python on 127.0.0.1 What's missing?
There's also a problem with mysql. I could not connect with them
If you change the pg_hba.conf file to accept connections (for example: "host all all 127.0.0.1 255.255.255.0 trust") it should work
Installing postgre v12 before uninstalling v11 I found the config file (postgresql.conf) had a line "port = 5433". Changing this to "port = 5432" fixed the issue for me.