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
I've been trying to configure postgresql with PAM on a Red hat server so that I can get remote access to the server via pgAdmin and use local (server) authentication with PAM.
I have edited the pg_hba.conf file and changed the appropriate line:
host postgres all 0.0.0.0/0 md5
and added this one:
host pam_testing all 0.0.0.0/0 pam pamservice=postgresql95
Moreover I created database user with the same username as I use to log in with putty (no password, simply create user xxx)
When I try to log in remotely with pgAdmin to postgres database (using md5) with my database user everything works smoothly.
But When I try to connect (also remotely, with pgAdmin) to pam_testing database with my server username (to which I log in via ssh using putty) and give the password I get the following error:
Error connecting to the server: FATAL: PAM authentication failed for
user XXX
BUT! When I log in locally to pam_testing while connected via putty it works! My system user gets logged in and authenticated without any problems. And it only happens for users, which I added to the database using create user.
I'm guessing it must be some kind of authentication issue (with the server maybe? It belongs to company and I don't know what other authentication methods it uses) but I'm not sure. Any ideas?
System: Red hat 6.8,
Postgresql: 9.5
Thanks in advance!
Do systemctl | grep unix_chkpwd and if you see lines like these
unix_chkpwd[13081]: check pass; user unknown
unix_chkpwd[13081]: password check failed for user (<username>)
then you've encountered the same problem I did.
To solve it you need to give postgres user read permissions to /etc/shadow file. You can do this via acl: setfacl -m g:postgres:r /etc/shadow, or by creating some group, giving it this permission and then adding postgres to it. Then do systemctl restart postgresql.service.
The underlying mechanics of authenticating with pam is described in this post. The key moment is the following: unix_chkpwd runs under the uid of the process which wants to authenticate someone, so if it's not root (and /etc/shadow is used which I believe is the common case), it can't do its job.
Just created a login role and subsequently, a database owned by a login role (both with the same name ". I specified a password. Typed psql fplanner and immediately was brought to a console without it having asked from a password. I'm logged into my computer's admin account, so maybe thats it.
Just wondering why it didn't ask me for a password, and when it would (or should), and also possibly how I might force it to prompt for a password every time before being accessed
just created a rails app, and it is also not requiring login information to access the database. Could again be based off the fact that I'm root already I'm not sure
System: OSX El Capitan, PostgreSQL 9.4.4, PgAdmin 1.20.0
Extremely basic question here, but it doesn't appear to have been asked, so I decided to give it a go.
It probably didn't ask because it is set to "trust" (hopefully only for local connections).
While you are in psql and connected to the database run SHOW hba_file; to find out where your pg_hba.conf file is located. Open this file in your favorite text editor. It contains a quite a lot of comments thoroughtly explaning what you can do (lines starting with a # are comments).
In most default installs there are only two actual configuration lines:
# IPv4 local connections:
host all all 127.0.0.1/32 md5
# IPv6 local connections:
host all all ::1/128 md5
Yours I expect to end in trust change them to md5 for normal password based access.
I found my posgresql database server is not asking password for user postgres when remote connecting through pgadmin. I mean this is when I connect to remote database server from my local computer through pgAdmin.
I did add a password in psql, ALTER USER postgres PASSWORD 'mypassword'.
This is my pg_hba.config file:
/usr/local/pgsql/bin/psql -qAt -c "show hba_file" | xargs grep -v -E '^[[:space:]]*#'
local all all trust
host all all 127.0.0.1/32 md5
host all all 0.0.0.0/0 md5
host all all ::1/128 md5
So, I do not quite understand what is happening here.
Can anyone help with this?
Thanks a lot.
UPDATE:
If i change:
local all all trust
to
local all all md5
Now, local connections (via SSH) will be asked for password ( wasn't asking for password before.) but remote connections will still connect without a password.
Acutally, I tried connecting to this database server by a rails appliaction from another server, without a password, and the rails server started without a problem.
PUTTING RESULT HERE FOR THE CONVENIENCE
The real reason of this issue was the .pgpass file. Mac stored the password locally in the .pgpass file under user home folder. Then every time when user try to login without a password, PostgreSQL will send the password for user.
Official doc here
Thanks for all the comments and answers ppl!
But the real reason of this issue was the .pgpass file. My mac stored the password locally in the .pgpass file under my user home folder. Then every time when i try to login without a password, PostgreSQL will send the password for me.
So that was the issue i was having....
Thanks for all the reply and the comments again!
For more details can refer to here
Reading the documentation at Postgresql.org
https://www.postgresql.org/docs/current/auth-pg-hba-conf.html
I would suggest that you change the user field with the names of the few users allowed to connect remotely:
host all john,charles 0.0.0.0/0 scram-sha-256
host all john,charles ::1/128 scram-sha-256
Further, for security reasons, I would advice that you look into using hostssl and also that you specify the name of the database(s) that can be accessed remotely:
hostsll webapp123 john,charles 0.0.0.0/0 scram-sha-256
And if the remote access is only from specific computers, specify their static IP addresses (if DHCP is used, use a mask accordingly.)
hostsll webapp123 john,charles 1.2.3.4/32 scram-sha-256
This way you only compromise database webapp123, to what users john and charles can do, and only from computer 1.2.3.4.
As mentioned in the documentation, you can have any number of entries, so if you want to add a test server (i.e. your server at home) then you can add one line so it looks like this:
hostsll webapp123 john,charles 1.2.3.4/32 scram-sha-256
hostsll webapp123 henry home-ip/32 scram-sha-256
By not specifying the users, you probably allow any user, including those without passwords and one of them is selected and it works...
Of course, I would strongly advice that you do not name a user who has administration rights in your database unless you also specify his static IP address.
Hi I've tried looking around for an answer but don't know how to access my local machine's postgresql username and password. I'm a big noob when it comes to the command line and bash and etc, so please help. Can someone help in helping me find out my username and password for postgres on a Mac?
Edmunds-MacBook-Pro:postgres edmundmai$ psql -d db -U postgres
Password for user postgres:
psql: FATAL: password authentication failed for user "postgres"
I don't know of a way to recover a password from PostgreSQL. However, if you add local all all trust to your pg_hba.conf file, it will allow you to log into the cluster without a password from your local machine. Once you've made the change, restart the server to get it to take effect, and then you can log in and change your password. Once you're done, be sure to remove this line from your pg_hba.conf and restart the server, as this isn't particularly secure.