It seems like someone out there must be running the command line programs from an automated script. You may wish to investigate alternatives to password authentication at. The password is always provided in the form of a stdin prompt. How are you doing it? Now with your configuration file updated, repeat the steps in the Login and Connect as Default User section to try to connect to as the default postgres user. How can I reset it? The current session user cannot be renamed. Database superusers can change any of these settings for any role.
This of course is not real secure against ps spying either, but at least the echo process only runs for a millisecond or two. The first one creates the database and a corresponding user that has rights to execute scripts on that database. On unix the pgpass file must not be group or world accessible. It looks like there is no way to specify the password on the command line. Provide details and share your research! Caution must be exercised when specifying an unencrypted password with this command. Would you like to answer one of these instead? To answer your question, there are a few ways provide a password for password-based authentication.
. If you are not the addressee indicated in this message or responsible for delivery of the message to such person, you may not copy or deliver this message to anyone, and you should destroy it and kindly notify the sender by reply email. By writing a temp file, you're not fundamentally solving the problem of having a file on disk with credentials. This only happens at login time; executing or does not cause new configuration values to be set. You also must make sure that the file has permissions 0600 or less. I am trying to automate database creation process with a shell script and one thing I've hit a road block with passing a password to psql. I have a somewhat detailed query in a script that uses? Say I wanted to run tmp.
How are you doing it? Instead, depending how Postgres was originally installed and what version you are using, the default authentication method will either be ident or peer. Also, if this script is interrupted for some reason, the file would be left on disk - writing a shell trap handler would address this. It looks like there is no way to specify the password on the command line. The first variant of this command listed in the synopsis can change many of the role attributes that can be specified in. It doesn't work on all the platforms we support, and we don't trust it for anything critical even on the platforms where it seems to work.
To log into a Postgres database from the command line, use the psql command. Ordinary roles can only change their own password. Uncomment the line if necessary remove the semicolon , or otherwise if the line is missing entirely, add the following line to the top of the file and save your changes: local all postgres peer This authentication rule simply tells Postgres that for local connections established to all databases for the user postgres, authenticate using the peer protocol. I want to execute the second script as this just created user. As written, a malicious script on the server could continually try to read files of this format, and would sometimes succeed in getting the password.
Unfortunately I can't find a way to pass the password for that user as a command line argument. Settings for specific databases or specific roles override settings for all roles. A far better solution is not to depend on password-based authorization in the first place. Ordinary roles can only set defaults for themselves. Edit oops, I should have said -v instead of -P which is for formatting options previous reply got it right. Scroll down the file until you locate the first line displaying the postgres user in the third column if such a line exists. If are using pgAdmin to connect to db make sure you changed your port number in connection settings.
Thanks, Tauren Tom Lane More to the point, changing the command line seen by 'ps' is a highly nonportable operation. Certain configuration variables cannot be set this way, or can only be set if a superuser issues the command. Thus, to add a password, we must first login and connect as the postgres user. The second one appends an include directive to the existing postgres config file. For instance, specify a file path that contains the password. All the possible attributes are covered, except that there are no options for adding or removing memberships; use and for that. Try createdb -U postgres newdatabase It should ask for a password, and that will be the password of the postgres database user.
Browse other questions tagged or. I want to avoid going in and replacing all the? It seems like someone out there must be running the command line programs from an automated script. This file should contain lines of the following format: hostname:port:database:username:password The password field from the first line that matches the current connection parameters will be used. Firstly, it is important to understand that for most Unix distributions, the default Postgres user neither requires nor uses a password for authentication. I was actually wondering if that was the reason.
You can also pass-in the parameters at the psql command-line, or from a batch file. I would think that there would be some way to do this, however. Omitting the password leads to a stop of execution and a prompt for the user to enter the password, which I would like to avoid - since this is executed during installtion of my app. Attributes not mentioned in the command retain their previous settings. If you only divided the scripts because of the different logins then with this they can go in the same file and just switch role mid way through. How would I be able to supply that. Database superusers can rename any role.