During the PSQL.exe launch I am asked for my account password. After providing the password the tool just closes with no error message or indication of what went wrong.
My account has full admin privileges and regardless of if I run the tool with Admin Privileges or normally the result is always the same.
I am using PostgreSQL 11.5 and PSQLODBC 12.0.
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I just installed PostgreSQL 13 on Windows 11. When I run the command psql by default it uses the user aaron, the name of my Windows user account. However, it asks me for a password. I have tried all passwords associated with my Windows account as well as the default password I set for the user postgres, none of which worked. I was able to log in with psql -U postgres, and I ran the command \du, and there was only one role in the list, postgres. Later I created the role aaron without specifying a password, but it still asks for a password.
So, did the user aaron exist initially or not? If not, then how was it the default user when I ran the psql command? What is the password for this user?
So, did the user aaron exist initially or not
No, it did not. The only user that is created when installing Postgres (or more precisely: when running initdb) is postgres.
If not, then how was it the default user when I ran the psql command
Quote from the manual
The default user name is your operating-system user name, as is the default database name
psql simply uses the operating system user as the default username to connect to the server. It knows nothing about the database user(s) until it tries to connect with a specific username and potentially password.
You can set a different default through the (Windows) environment variable PGUSER
Later I created the role aaron without specifying a password, but it still asks for a password.
Whether or not a password is required is controlled through pg_hba.conf
When you run psql command and don't provide a username it considers (that the current system user which in your case is aaron) is the user you want to use to login and hence you see a user which really don't exists.
Now regarding the password you might want to check a file generally named as pg_hba.conf which hold the essentials of who can connect (IPs) what username can he have and should that user be asked for password.
Now generally you will find answers saying that find this file and write down trust everywhere (which basically means if some specific user from a specific IP access this database of replication then don't ask for a password and let him enter), which you should not do until and unless you are utterly sure the postgresql server is just just local and has no real-time purpose.
So concluding you want to create a user with some encrypted password and then provide necessary privilege.
P.S: I have tried all these on a linux machine, but the server configurations are more or less same.
It's worth pointing out that PostgreSQL has it's own users and permissions independent of the OS. Some installers will automatically create a postgres OS user. I'm not sure what Windows does.
It seems that PostgreSQL can do Windows authentication. See this question for details on how to configure that.
As #a_horse_with_no_name has said, connection configuration is controlled by pg_hba.conf
PostgreSQL tries not to leak information about its users, so the failed-authentication attempt is not given much information about why it failed.
If you look in the server's log file, rather than the clients, you should first see messages about 'aaron' failing to authenticate because the user does not existing, and then (after you create it) about it failing to authenticate because it has no password assigned.
When you created the user, you should have assigned it a password if you wanted to use a password. Or as a superuser in psql, create it without a password and then assign one with \password aaron That way the password won't be visible on the screen, or in the log files.
To give a concise, direct answer:
right click on Windows icon and click “System”.
scroll down to “Advanced System Settings”.
click Environment Variables.
in “System variables”, click “New”.
Set Variable Name to PGUSER and Variable Value to postgres.
Or, in cmd: set PGUSER=postgres, which also sets it globally.
go to "Services" (in Task Manager), and restart the "postgresql-X64" service.
I'd like to learn how to use postgres, so I just installed it, set my password, and added the \bin and \lib directories to my system path. I then ran psql in the command line, typed the password that I just set when I was prompted, and now I receive this error:
psql: error: FATAL: password authentication failed for user "me"
I don't understand why that happened. Any ideas? I am using windows 10.
The windows installer asks you to specify the password for the super user named "postgres". But if you just type psql, you are trying to log in as the PostgreSQL which has the same name as your windows OS user. But that PostgreSQL user probably doesn't even exist, much less have the same password as you specified upon installation.
So the first time you log in, you have to tell it to log in as the initial superuser, with -U postgres. Once logged in, you can create a user named 'me' (create it with a password--possibly the same as the first password you assigned, although generally they would be different), and a database named 'me'. From them on, you could log in as this new user to this new database, just by typing psql and then giving the password when it asks.
In general, the initial user and the initial database are only used for maintenance operations. Other tasks should be done with the users and in the databases you set up after the first time you log in. This isn't "the law" of course, it is just "a good idea".
I have just installed Postgres 12 on a Mac. As you may soon appreciate I am totally new to it.
During the installation process I was asked to provide a "password". I do not remember specifically, but I think it was for the some sort of admin role.
Now I want to create my first database. Reading the documentation I insert the command
createdb myfistdb
the system asks for a password. I give the one I set during the installation processes but I got the following error
createdb: error: could not connect to database template1: FATAL: password authentication failed for user "myusername"
where myusername is the user I am logged in.
The same happens if I give the system password of myusername.
I understand that my question is pretty basic, but I have been struggling quite some time without any success, so any help will be appreciated.
The database uset name used by createdb defaults to the operating system user name, so you'll have to specify the administrative superuser explicitly:
createdb -U postgres myfistdb
I'm trying to install postgeSQL on my win 7 machine.
trying to set a password during the instalation, I found that I allready have a username
named postgers in my system. can find it by typing net user postgres in the console.
Now, how can I change it's password?
loged in with my administrator account, I typed "net user postgres abcd123".
the respond is: System error 5 have occurred. Access is denied.
What am I doing wrong? Why my admin account don't have a privilege to modify this user?
Thanks
Try opening cmd with admin privileges explicitely (Run as administrator in context menu).
I am using win Vista, and I am trying to backup some Database under DB2.
I am logged in using the Administrator user, and whenever I try to issue the backup command in the "command line processor", I get the following message:
SQL1092N "ADMINISTRATOR" does not have the authority to perform the requested command. SQLSTATE=00000
BTW, I have created a username/password pair (db2admin) while installing the DB2 server.
So, Will this problem will be get solved if I use the db2admin user? And how to connect to the server (local server BTW) using the db2admin user ?
I had this problem recently and this seemed to do the job:
Attach to your [local] node. (the value of your DB2INSTANCE environ variable, mine was 'DB2'):
attach to DB2 user db2admin using mypassword;
If this isn't enough (it didn't seem to be with me), you can also specify the user and password with backup and restore commands:
restore database mydbname user db2admin using mypassword from C:\BACKUPS taken at 20100823132457;
Or manually create the db2admin user with a password on Windows. But I'm not sure if that's the correct option here.