Unable to connect to the server when using connecting postgresql to tableau.
Tableau shows "Error code: BC42EF73. SCRAM authentication requires libpq version 10 or above. Unable to connect to the PostgreSQL server "localhost". Check that the server is running and that you have access privileges to the requested database."
i tried connecting postgresql with tableau. I am expecting connection of dvdrental database file of postgresql to tableau.
Option 1: If postgres 12 or 13, check the driver you are using in https://www.tableau.com/support/drivers
Download the jar file and copy it here: ~/Library/Tableau/Drivers
Option 2: If you don't need
scram-sha-256 authentication, you can revert to md5
set password_encryption = md5 in postgresql.conf
change the authentication method to md5 in pg_hba_conf
reload PostgreSQL
change the password of the user to get an MD5-encrypted password
Just setup my own
Related
When I try to connect database via DBeaver I get an error 'FATAL: password authentication failed for user "username"'. After some research, I think the problem in password encryption difference between the database which uses md5 and DBeaver driver which probably uses SCRAM.
How can I force DBeaver to use md5 instead of SCRAM? I'm using the latest version of DBeaver.
I can't connect on postgresql.
when i go on pgadmin>server>postgresql, it asked me "please enter the password for the user 'postgres' to connect the server?
I have windows 10 and postgresql 14.
But I don't have this password.
What can I do?
The following worked for me.
Change METHOD of all rows in your pg_hba.conf file from scram-sha-256 to trust (C:\Program Files\PostgreSQL\14\data\pg_hba.conf). This will disable password for your DB.
Click on any database in postgresql to use Query Tool.
In Query Tool type ALTER USER postgres WITH PASSWORD 'User_password';
postgres is default username, execute it.
This way you can set up a password for your DB, after that go back to the first step and change it back from trust to scram-sha-256.
I'm using Postgresql, and I have a database named django_db and a user manuel. I want to connect to this database by this user, I tried this \c django_db manuel but I get this error:
FATAL: Peer authentication failed for user "manuel"
Previous connection kept
How can I solve this problem?
Make sure the user manuel has access to the database django_db in the pg_hba.conf file, e.g.
host django_db manuel your_ip_adress md5
Or if you prefer to give this user access to all databases
host all manuel your_ip_adress md5
After modifying your pg_hba.conf you have to either restart postgres or simply reload the file using the following function:
SELECT pg_reload_conf();
Unless you have a user mapping in place, only the OS user named 'manuel' can connect as the PostgreSQL user named 'manuel'. This is what "peer authentication" means.
You have many choices here. Try this as an OS user named 'manuel', or change from peer to some other type of authentication (in pg_hba.conf), or create a pg_ident.conf file (and then configure pg_hba.conf to use it) that allows the OS user you actually are to login as PostgreSQL user 'manuel'.
I am using windows 8.
My Postgres was Correct.
I just took the data directory from C:/postgresql/8.3/
Now database was connected through command prompt.
When I was trying to connect using pgadmin, it's saying
FATEL: error
An error has occured:
Error connecting to sthe server: FATAL: role "postgres" is not permitted to log in
I changed the required things in pg_hba.conf (trust) and postgresql.conf (connection *) (port 5433)
But, still I was unable to connect the database.
How to give the permissions to postgres role.
when am trying to give the permissions through cmd also it's giving same error.
I was tried in so many ways
but, still I didn't get the database.
It looks like you might have accidentally revoked the LOGIN and SUPERUSER rights from the postgres user. Perhaps you created a superuser with a different name instead? Log in as that user if you did.
If not, and you can't get access as user postgres, you will need to start the database engine up in single-user mode and manually GRANT the SUPERUSER right to postgres again. This is much the same process as is required when recovering from a dropped (deleted) superuser account.
See related:
https://dba.stackexchange.com/q/44586/7788
Postgres reset password in PostgreSQL server 8.4
BTW, 8.3 is a very old and unsupported version. Plan your upgrade promptly.
If there's no data in PostgreSQL that you care about, the easiest thing to do will be:
Uninstall PostgreSQL 8.3;
Delete C:\Program Files\PostgreSQL\8.3 (permanently and unrecoverably destroying all data in your PostgreSQL databases); and
Install a current PostgreSQL version
Hello i am a beginner to postgresql, I am unable to connect Postgresql database on linux system from windows through pgadmin client . I am getting the following error
FATAL: no pg_hba.conf entry for host "192.168.1.42", user "postgres", database "postgres", SSL off
Kindly suggest me how to do.Thanks in advance
On the db server, edit your pg_hba.conf file and add a line similar to this:
host all all 192.168.1.42/32 md5
If you don't want to use a password (I won't get into the security aspects), you can switch the "md5" for "trust". If you only want to allow the postgres user access to the postgres maintenance database, then switch both "all" words with "postgres" (no quotes).
You'll need to reload the config files after making any changes.
Eg.
pg_ctl reload
or
select pg_reload_conf(); -- as the superuser
If you don't know which pg_hba.conf file your database cluster is using, if you can connect to any of the databases, issue select current_setting('hba_file');
by default, postgresql deny all connexion if it's not from "localhost"
here is a link for you :
https://wiki.debian.org/PhpPgAdmin