- 1 year ago
heroku pg:psql --app error CLI FATAL: no pg_hba.conf entry for host "hostIp", user "user name", database "Name", SSL off
The error message you encountered, "CLI FATAL: no pg_hba.conf entry for host 'hostIp', user 'user name', database 'Name', SSL off," is related to the PostgreSQL host-based authentication configuration. This error occurs when the PostgreSQL server (host) denies the connection request from the specified IP address, user, or database due to the lack of an appropriate entry in the pg_hba.conf
file.
The pg_hba.conf
file is a configuration file in PostgreSQL that defines the host-based authentication rules for incoming connections. It determines which hosts are allowed to connect, which users are allowed to connect, and what authentication methods (e.g., password, trust, md5) should be used for different combinations of hosts, users, and databases.
To resolve this issue, you need to modify the pg_hba.conf
file on the PostgreSQL server to allow the connection from the specific host, user, and database. Follow these steps:
Locate the
pg_hba.conf
file:
Thepg_hba.conf
file is typically located in the PostgreSQL data directory. On most Unix-based systems, it can be found at the following path:bash/etc/postgresql/<version>/main/pg_hba.conf
On Windows, the path might be:
kotlinC:\Program Files\PostgreSQL\<version>\data\pg_hba.conf
<version>
is the version number of your PostgreSQL installation.Edit
pg_hba.conf
:
Open thepg_hba.conf
file in a text editor with administrative privileges.Add an entry for the host, user, and database:
Add an entry to allow the connection from the specified host, user, and database. The format of an entry inpg_hba.conf
is as follows:sqlhost database user address auth-method
Replace the following placeholders:
database
: The name of the database you want to connect to.user
: The name of the user that is attempting to connect.address
: The IP address of the client machine attempting to connect (hostIp
in your error message).auth-method
: The authentication method to be used. Common methods includemd5
,trust
, orpassword
.
For example, to allow connections from a specific IP address (e.g., 192.168.1.100) with md5 password authentication for a user named "username" to a database named "mydb," you would add the following entry to
pg_hba.conf
:host mydb username 192.168.1.100/32 md5
Save and close the file.
Restart PostgreSQL:
After modifyingpg_hba.conf
, you need to restart the PostgreSQL server to apply the changes. On most systems, you can use the following command:sudo service postgresql restart
Retry the connection:
After making the necessary changes and restarting PostgreSQL, retry theheroku pg:psql
command.
Remember that modifying pg_hba.conf
should be done with care, as it controls the security of your PostgreSQL server. Make sure to follow best practices for securing database connections and consult the official PostgreSQL documentation for more information on pg_hba.conf
configuration options.