If you get an error message “could not connect to server: Connection refused” indicates that there is an issue establishing a connection to the PostgreSQL server on the specified host and port. psql: error: could not connect to server: Connection refused Press Enter after entering the command, and provide the password to establish a connection to the specified database. If your server is listening on a different port, you can use the -p option to specify the port number (replace 5432 with the actual port number it is listening on). To access a Postgres database running on a remote host, use the -h option to specify the host IP address or hostname of the machine on which the server is running, for example: $ psql -U ravi -h 192.168.0.124 -p 5432 -d ubuntumintīy default, the Postgres database server listens on port 5432 which is why we specified the port number. Connect to PostgreSQL Database Connect to Remote Postgresql Databaseīefore you can log into a remote database, you need to know the name of your target database, the hostname or IP address of the machine it is running on, and the port number the Postgres database server is listening on), and what user name you want to connect as. If the database connection parameters are correct, psql will provide a prompt with the name of the database to which psql is currently connected, followed by the string => where you can run SQL commands. Note that the following command will allow you to log into a Postgres database running on the localhost: $ psql -d ubuntumint -U ravi To begin, open your terminal and use the psql, a terminal-based front-end to PostgreSQL as follows, where the -d flag is used to specify the database you are connecting to and the -U specifies the username you are connecting as. You can install the psql client tool using package managers like apt, yum, or dnf, or by downloading them directly from the PostgreSQL website. These tools include the PostgreSQL command-line client, psql, which allows you to interact with the database from the terminal. How to Connect to Postgres from Command Lineīefore logging into a PostgreSQL database, ensure that you have the necessary client tools installed on your system. In this article, we will guide you through the process of logging into a PostgreSQL database from the command line in Linux. To interact with a PostgreSQL database, you can utilize the command-line interface, providing a flexible and efficient way to execute queries and perform administrative tasks. PostgreSQL is a powerful open-source relational database management system known for its robustness and extensive feature set.
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