I am newbie with pgAdmin4 and here is my problem.
I setup postgresql in ubuntu, everything seems ok, I change password for the account postgres by this command sudo passwd postgres and note it very carefully.
Then, I tried to connect to postgresql by pgAdmin4 follow this tutorial.
https://www.youtube.com/watch?v=XRdl0P4V-PU
Name is localhost
Hostname is localhost
Port is 5432
Maintenance database is postgres
Username is postgres
And password is the password I set above.
But they said to me that Unable to connect to server: FATAL: password authentication failed for user "postgres"
I tried to change the password, but still the same error. Seems something wrong ?
Could you please give me some ideas ? Thank you very much.
It seems like you only changed the password at the OS level. Basically, for the Ubuntu user postgres, you changed the password with sudo passwd postgres.
In order to change the password for the postgres user for the database, you need to log into the database and change the postgres user's password with ALTER ROLE postgres PASSWORD '<your password>';
In order to accomplish this, you will need to change your pg_hba.conf temporarily, allowing the postgres user to log in without a password (either set to trust or peer authentication method, change the password, and the switch back to password or other authentication method). After changing pg_hba.conf you will either want to issue a kill HUP to the parent postgres process (check the top-most process in your ps -ef | grep postgres output), or simply restart postgres with systemctl restart postgresql<your_postgres_version>
I recently installed Postgresql 11, during the installation, there's no step to put password and username for Postgres. Now in pgAdmin 4, I wanted to connect the database to server and it's asking me to input password, and I haven't put any in the first place.
Any one knows what's going on. Thank you!
The default authentication mode for PostgreSQL is set to ident.
You can access your pgpass.conf via pgAdmin -> Files -> open pgpass.conf
That will give you the path of pgpass.conf at the bottom of the window (official documentation).
After knowing the location, you can open this file and edit it to your liking.
If that doesn't work, you can:
Find your pg_hba.conf, usually located under C:\Program Files\PostgreSQL\9.1\data\pg_hba.conf
If necessary, set the permissions on it so that you can modify it. Your user account might not be able to do so until you use the security tab in the properties dialog to give yourself that right by using an admin override.
Alternately, find notepad or notepad++ in your start menu, right click, choose "Run as administrator", then use File->Open to open pg_hba.conf that way.
Edit it to set the "host" line for user "postgres" on host "127.0.0.1/32" to "trust". You can add the line if it isn't there; just insert host all postgres 127.0.0.1/32 trust before any other lines. (You can ignore comments, lines beginning with #).
Restart the PostgreSQL service from the Services control panel (start->run->services.msc)
Connect using psql or pgAdmin4 or whatever you prefer
Run ALTER USER postgres PASSWORD 'fooBarEatsBarFoodBareFoot'
Remove the line you added to pg_hba.conf or change it back
Restart PostgreSQL again to bring the changes to effect.
Here is an example of the pg_hba.conf file (METHOD is already set to trust):
# TYPE DATABASE USER ADDRESS METHOD
# IPv4 local connections:
host all all 127.0.0.1/32 trust
# IPv6 local connections:
host all all ::1/128 trust
NOTE: Remember to change the METHOD back to md5 or other auth-methods listed here after changing your password (as stated above).
For Windows variant - I too experienced this nasty bug because of pgAdmin for my Windows x64 install of version 9.2. It left my production paralyzed.
In folder C:\Program Files\PostgreSQL\9.2\data or C:\Program Files (x86)\PostgreSQL\9.x\data, you'll find the pg_hba.conf text file.
Find the following lines:
# TYPE DATABASE USER ADDRESS METHOD
# IPv4 local connections:
host all all 127.0.0.1/32 md5
# IPv6 local connections:
host all all ::1/128 md5
and change METHOD md5 to "trust" like this:
# TYPE DATABASE USER ADDRESS METHOD
# IPv4 local connections:
host all all 127.0.0.1/32 trust
# IPv6 local connections:
host all all ::1/128 trust
From Windows>Run type "services.msc" and enter find the right PostgreSQL instance and restart it.
Your DB security is now blown wide open! Heed the warning to return it back to md5 after changing the user password expiry time to say year 2099 for all the relevant users.
Change the password of default use
ALTER USER postgres WITH PASSWORD 'new_password';
Note: CREATE USER is the same as CREATE ROLE except that it implies LOGIN.
$ psql postgres
postgres=# create user postgres with superuser password 'postgres';
After successfully changing the master password
If you get the same error even after following the master password reset steps
Open your command prompt and execute
psql -U postgres
It will ask you for the password, enter the new password which you set now parallelly open SQL shell(psql) and try again with the new password
I have tried all the above mentioned solutions, trust me northing worked! I have resolved the issue by using following commands
psql -U default
\password
Enter new password:
Enter it again:
my username is : default
This worked perfectly for me.
For Linux user try this
//CHECK POSTGRES IS WORKING OR NOT
sudo systemctl status postgresql
//THIS WILL ACCEPT PORTS
sudo pg_isready
sudo su postgres
//NAVIGATE TO SQL TERMINAL / BASH
psql
//CREATE A NEW USER WITH PASSWORD
CREATE USER shayon WITH PASSWORD 'shayon';
try using psql -U postgres if have put password while installing this is command where you have to use that. Thank you :)
Option 1: If you use trust
Better change only postgres to trust in the pg_hba.conf, then access your db with postgres super user and add other users and passwords with the power of the postgres super user, then change all other peer to md5.
The steps: In the pg_hba.conf, change
local postgres to trust
do not change local all to trust,
instead change local all from peer to md5 - which means that a right password is enough to login.
See this solution in detail at the second answer of 'Getting error: Peer authentication failed for user "postgres", when trying to get pgsql working with rails'.
Option 2: Use md5, no trust needed (recommended)
This way is even easier because you will need to change the pg_hba.conf only once:
Change any local user from peer to md5, usually:
Change local postgres from peer to md5
Change local all from peer to md5
Add a postgres pw with the power of your Linux pw only:
sudo su postgres
psql (or psql -p <port> if you have more than one PostgreSQL)
\password
\q
See the accepted answer and the comments of "Getting error: Peer authentication failed for user "postgres", when trying to get pgsql working with rails".
I solved this problem by changing peer to trust in the file "pg_hba.conf" at local postgres then I restarted the postgres service with the command:
sudo service postgresql restart
That's it.
This particular situation I'm about to mention probably doesn't come up very often, but I was getting this error as well. After looking into it, it was because I had a local postgres instance listening on port 5433, and I was trying to set up a Kubernetes tunnel to a remote PG instance mapped to local port 5433 as well. It turns out the command I was running was attempting to connect to the local instance rather than the remote instance. When I temporarily stopped the local instance, I was able to connect to the remote instance through the tunnel without changing the psql command I was using.
I know this is an old question, but I had the same problem, e.g. no dialog for setting password for Postgres during installation with Postgresql 11.
Instead of doing all the file manipulations suggested in the other answers, I deleted Postgresql 11 and installed Postgresql 12, where I was prompted for setting password during installation.
Loggin to PgAdmin4
Go to
Object > Create > Login/Group Role
Create the "username" that was named in the psql terminal
Create password
Give it all the rights
Save
try the password immediately in the psql terminal.
It worked for me.
Hope this works for you.
You can use the "superuser" password for the first time.
After that you can use Object > Create > Login/Group Role to change the password for the "postgres" user.
I currently had a headhache solving this case. A friend helped me I decided to post my solution here.
Open pg_hba.conf in any text editor (you can find this file in your postgres instalation folder > data);
Change all the methods fields to trust (meaning you don't need a password for postgre);
Run in your console this comand: "alter user postgres with password '[my password]';" | psql -U postgres (meaning to alter some user password for [my password] for the user as parameter -U postgres);
Et voilà (don't forget to change back the method from trust for the one that should be best for you).
I hope this help someone someday.
For those of you who got this error and NONE of these answers helped, I may not have StackOverflow fish for you, but I'll teach you how to fish!
You likely don't have the correct order of lines in the pg_hba.conf file. If you read this PostgreSQL documentation link below, it says this error can be thrown if "no matching entry is found". However, that is NOT always true! Documentation is written by humans and humans make mistakes.
https://www.postgresql.org/docs/current/client-authentication-problems.html
The truth is that a line further up might take precedence, is qualifying and is forcing you to use a password stored in PostgreSQL rather than delegated authentication or some other method. If you are not specifying a password stored in PostgreSQL, then you do not need the LOGIN role attribute. Put a line at the very top of this list with your specific user, authentication protocol, network details and other criteria. Also, many may think that most computers use IPv4. Try IPv6 and you'll be surprised. Once you know the very specific criteria of your issue and place a line at the top, then you have established the ONLY RELIABLE WAY to troubleshoot these pg_hba.conf issues without source code debugging!
Another helpful trick is to create a crapload of Server entries in pg_admin (SQL IDE for PostgreSQL) with all of your users and authentication protocols for testing. When you test different scenarios, you'll instantly know which ones fail.
Also, whenever you change this file, restart the PostgreSQL service, before testing the user.
You're welcome my friend. :)
Follow below stepsif you are using pgAdmin4 and facing error in updating password :
1] Open file "pg_hba.conf" and find "IPv4 local connections"
2] See the value under "Method" column, it must be set to "md5" becase you selected it while installing.
3] Make "md5" value blank and save the file. Restart pgAdmin4 application.
4] Now again set the value back to "md5" and input your password in pgAdmin application.
You should be successfully able to do it.
windown 11 - postgres 14
open pgAdmin4 - click servers
right-click on your windows user name rule, e.g: MyUserName.
definition tab - enter password, click save.
open/re-open terminal
run: psql "postgres:///"
if you get "MyName database doesn't exist" you're good to go
From what I read in my pg_hba.conf, I'm inferring that, to make sure I'm prompted for a password for the postgres user, I should edit pg_hba.conf's first two entries' method from the current 'peer' to either 'password' or 'md5', but I don't want to break things if that's wrong. Am I on the right track? Or missing something obvious?
Anyway, more details-
After installing postgres 9.4 on debian, I changed the postgres user's password by doing this-
postgres=# \password postgres
...and entering in the new password twice.
Then I exited postgres (Ctrl+D), then restarted the server from bash-
sudo service postgresql restart
When I log back into postgres (sudo -u postgres psql), I'm not prompted for the new password. I just get-
psql (9.4.9)
Type "help" for help
postgres=#
Also, the .pgpass file is in my home directory, but it's empty. Finally, first two lines of pg_hba.conf are
local all postgres [blank] peer
local all all [blank] peer
Setting a password only provides the password for authentication methods that require it. It does not add the requirement that the password be specified for login.
Whether a password is required is controlled by pg_hba.conf. The peer auth mode does not require a password, it allows a user to log in if their unix username is the same as the postgres username they're trying to connect as.
Try md5 auth if you want password authentication.
I have installed PostgreSQL 8.4, Postgres client and Pgadmin 3. Authentication failed for user "postgres" for both console client and Pgadmin. I have typed user as "postgres" and password "postgres", because it worked before. But now authentication is failed. I did it before a couple of times without this problem. What should I do? And what happens?
psql -U postgres -h localhost -W
Password for user postgres:
psql: FATAL: password authentication failed for user "postgres"
FATAL: password authentication failed for user "postgres"
If I remember correctly the user postgres has no DB password set on Ubuntu by default. That means, that you can login to that account only by using the postgres OS user account.
Assuming, that you have root access on the box you can do:
sudo -u postgres psql
If that fails with a database "postgres" does not exists error, then you are most likely not on a Ubuntu or Debian server :-) In this case simply add template1 to the command:
sudo -u postgres psql template1
If any of those commands fail with an error psql: FATAL: password authentication failed for user "postgres" then check the file /etc/postgresql/8.4/main/pg_hba.conf: There must be a line like this as the first non-comment line:
local all postgres ident
For newer versions of PostgreSQL ident actually might be peer. That's OK also.
Inside the psql shell you can give the DB user postgres a password:
ALTER USER postgres PASSWORD 'newPassword';
You can leave the psql shell by typing CtrlD or with the command \q.
Now you should be able to give pgAdmin a valid password for the DB superuser and it will be happy too. :-)
The response of staff is correct, but if you want to further automate can do:
$ sudo -u postgres psql -c "ALTER USER postgres PASSWORD 'postgres';"
Done! You saved User = postgres and password = postgres.
If you do not have a password for the User postgres ubuntu do:
$ sudo passwd postgres
This was frustrating, most of the above answers are correct but they fail to mention you have to restart the database service before the changes in the pg_hba.conf file will take affect.
so if you make the changes as mentioned above:
local all postgres ident
then restart as root ( on centos its something like service service postgresql-9.2 restart )
now you should be able to access the db as the user postgres
$psql
psql (9.2.4)
Type "help" for help.
postgres=#
Hope this adds info for new postgres users
Edit the pg_hba.conf file, for Debian on /etc/postgresql/9.3/main/pg_hba.conf and for Red Hat/IBM derivates at /var/lib/pgsql/9.4/data/pg_hba.conf
Change all authentication methods to trust.
Change Linux Password for postgres user.
Restart Server.
Login with psql -h localhost -U postgres and use the just set Unix password.
If it works you should re-set the pg_hba.conf file to values with md5 or ident methods and restart.
For those who are using it first time and have no information regarding what the password is they can follow the below steps(assuming you are on ubuntu):
Open the file pg_hba.conf in /etc/postgresql/9.x/main
sudo vi pg_hba.conf
2.edit the below line
local all postgres peer
to
local all postgres trust
Restart the server
sudo service postgresql restart
Finally you can login without need of a password as shown in the figure
Ref here for more info
When you install postgresql no password is set for user postgres, you have to explicitly set it on Unix by using the command:
sudo passwd postgres
It will ask your sudo password and then promt you for new postgres user password.
Source
Try to not use the -W parameter and leave the password in blank. Sometimes the user is created with no-password.
If that doesn't work reset the password. There are several ways to do it, but this works on many systems:
$ su root
$ su postgres
$ psql -h localhost
> ALTER USER postgres with password 'YourNewPassword';
As a rule of thumb: YOU SHOULD NEVER EVER SET A PASSWORD FOR THE POSTGRES USER.
If you need a superuser access from pgAdmin, make another superuser. That way, if the credentials for that superuser is compromised, you can always ssh into the actual database host and manually delete the superuser using
sudo -u postgres -c "DROP ROLE superuser;"
Once you are in your postgres shell, Enter this command
postgres=# \password postgres
After entering this command you will be prompted to set your password , just set the password and then try.
If you are trying to login postgres shell as postgres user, then you can use following commands.
switch to postgres user
# su - postgres
login to psql
# psql
Hope that helps
Ancient thread, but I wasted half a day dealing with this in 2020, so this might help someone: Double-check your postgres port (on Ubuntu, it's in /etc/postgresql/9.5/main/postgresql.conf). The psql client defaults to using port 5432, BUT in my case, the server was running on port 5433. The solution was to specify the -p option in psql (e.g. psql --host=localhost --username=user -p 5433 mydatabase).
If you leave off the --host parameter, psql will connect via a socket, which worked in my case, but my Golang app (which uses TCP/IP) did not. Unfortunately, the error message was password authentication failed for user "user", which was misleading. The fix was to use a url connection string with the port (e.g. postgres://user:password#localhost:5433/mydatabase).
My setup was Ubuntu 18.04 on Digital Ocean, with postgres 9.5 installed via apt-get, so not sure why this happened. Hope this saves you some time.
I faced the same error on Windows 10. In my case, when I setup the Postgres, my username was postgres by default.
But when I ran the command psql, it as showing my the username as jitender which is my machine name, and I don't know why this username had been setup.
Anyway to solved it, I did the following steps:
Run the command psql --help
In the output, look for the Connection Option, here you will see your default user, in my case it as jitender.
You will also get the command to set the anoter username, which should be psql --username postgres. You set the username whatever you require, and that's all, problem got solved.
If you see error
FATAL: password authentication failed for user "postgres"
and you are sure that your password is correct, check that the password has any special characters, especially "%" or slashes.
In my case, it was "%" in the password string. After removing this symbol, everything works fine.
Here are some combinations which I tried to login:
# login via user foo
psql -Ufoo -h localhost
sudo -u postgres psql postgres
# user foo login to postgres db
psql -Ufoo -h localhost -d postgres
Time flies!
On version 12, I have to use "password" instead of "ident" here:
local all postgres password
Connect without using the -h option.
First of All password crate
ALTER USER postgres with encrypted password 'postgres';
then service restart:
sudo systemctl restart postgresql.service
End.
Follow these steps :
sudo -u postgres -i
psql
\password postgres
After that, enter your password twice.
Then use that password in the pgAdmin4.
I was also faced this issue while login the postgres. I was followed the below steps and able to login with postgres and pgadmin.
Step1: Open Postgres using terminal.
sudo su postgres
Step2: Open psql.
psql
Step3: Reset the password of user
ALTER USER user_name WITH PASSWORD 'new_password';
Step4: Give the permission on database to user.
GRANT ALL PRIVILEGES ON DATABASE my_database TO db_user;
I just wanted to add that you should also check if your password is expired.
See Postgres password authentication fails for details.
In my case, Ubuntu 20.04 Postgresql 12 was using the wrong port.
I've checked /etc/postgresql/12/main/postgresql.conf and realized it was 5433 instead of 5432.
The answer is #diego
I want to add some explanations of how I fixed error and I hope it will help other folks:
ERROR: password authentication failed for user "postgres"
On Window
Make sure you download Postgres software, install it, create and confirm password
and make sure its not complicated with some symbols and characters.
Open window, click SQL Shell (PSQL) and access it and create database
Create connection string like
postgres://postgres:your_password#localhost:port/your_database
On WSL
Follow Microsoft documentation
After successful installation
// Open postgres
su postgres
// Type psql and hit enter
psql
// Create a user postgres if not exist or any other user you want
CREATE USER your_user_db WITH PASSWORD 'match_password_with_db_password';
// Give user password same as the one you set up for postgres db
ALTER USER your_user_db WITH PASSWORD 'match_password_with_db_password';
// Restart the server
sudo service postgresql restart
i had a similar problem.
Ubuntu was left me log in in console with any password for superuser.
Except when i connected with -h localhost in psql line command.
I Observed too that "localhost:8080/MyJSPSiteLogIn" - showed: Fatal: autentication error with user "user".
pg_hba.conf was ok.
I noted had two versions of postgres running in the same service.
Solved - uninstalling inutil version.
I had faced similar issue.
While accessing any database I was getting below prompt after updating password
"password authentication failed for user “postgres”" in PGAdmin
Solution:
Shut down postgres server
Re-run pgadmin
pgadmin will ask for password.
Please enter current password of mentioned user
Hope it will resolve your issue
This happens due to caching.
When you run, php artisan config:cache, it will cache the configuration files. Whenever things get change, you need to keep running it to update the cache files. But, it won't cache if you never run that command.
This is OK for production, since config don't change that often. But during staging or dev, you can just disable caching by clearing the cache and don't run the cache command
So, just run php artisan config:clear, and don't run the command previously to avoid caching.
Check original post
Password authentication failed error on running laravel migration
In my case, its Password was longer than 100 characters. Setting it to a smaller character password worked.
Actually I am wondering is there a reference somewhere to that.
Please remember if you have two versions of Postgres installed you need to Uninstall one of them, in my case on MacOS I had one version installed via .dmg and one via brew.
What worked for me was to uninstall the one installed via .dmg using the following steps
Go to /Library/PostgreSQL/13.
Open uninstall-postgres.app.
then try
psql postgres
it should work.
Answer given is almost correct just missing some pointers which i'll be taking care of in my solution
First make sure your user have a sudo access if not you can use the below command to add your user as sudo user :-
sudo adduser <username> sudo
The change will take effect the next time the user logs in.
i) Now go to sudo vim /etc/postgresql/<your_postgres_version>/main/pg_hba.conf file and look for line that says :
local all postgres md5 #peer
and comment that. Just below that line there must be a commented line that says:
local all postgres peer
or for older versions it'll be :-
local all postgres ident
Uncomment that line.
ii) Now restart the postgres by using any of these commands :-
sudo /etc/init.d/postgresql restart
OR
sudo service postgresql restart
iii) Now you can simply log into postgres using the following command :
sudo -u postgres psql
iv) once you're in you can create any operation you want to in my case i wanted to create a new database you can do the same using below command :
CREATE DATABASE airflow_replica;
In my case it was so simple! I was taken error in application JAVA Spring because I needed remember the Database Superuser, it is showed during the install process PostgreSQL, in my case the datasource would be postgres. So, I added correctly the name and it works!
Open pg_hba.conf in any text editor (you can find this file in your postgres instalation folder);
Change all the methods fields to trust (meaning you don't need a password for postgre);
Run in your console this comand:
"alter user postgres with password '[my password]';" | psql -U postgres
(meaning to alter some user password for [my password] for the user as parameter -U postgres)
Et voilà (don't forget to change back the method from trust for the one that should be best for you)
I hope this help someone someday.
I hope this will help you short of time.
You can change the password of postgres sql by using bellow command.
Command
sudo -u postgres psql
And next you can update the password
Command
Alter user postgres password 'YOUR_NEW_PASSWORD';