Skip to main content
Connect to a PostgreSQL TimescaleDB cluster

Connect to a PostgreSQL TimescaleDB cluster

The PostgreSQL TimescaleDB cloud database cluster can be connected to by DNS address, private IP address, and public IP address.

We recommend connecting by DNS address because DNS addresses correspond to node roles and lead to the actual IP addresses of the master and replicas. IP addresses correspond to specific nodes. If the master is unavailable, one of the replicas will assume its role, the master's IP address will change, and the IP connection will stop working.

If the cluster is connected to a private subnet and you want to work with it via DNS, connect the cluster subnet to a cloud router with access to the external network. Use the following instructions Set up internet access via cloud router.

If the cluster is connected to a private network and you need to configure access to the node from the Internet, connect a public IP address.

Ports

Use ports to connect to PostgreSQL:

  • 5433 — port for connection to the selected node via connection puller — allows you to reduce the load on PostgreSQL;
  • 5432 is the port to connect directly to the PostgreSQL process.

Ways of connection

  • through the psql terminal client;
  • through graphical database management tools: pgAdmin or an office suite with ODBC or JDBC support;
  • from program code with SSL и without SSL.

Connection with SSL certificate is available for all methods.

View the address for connection

  1. В control panels go to Cloud platformDatabases.
  2. Open the Database Cluster page → tab Connection.
  3. In the block Addresses for connection check out the address.

Connect with SSL

Connecting using TLS/SSL encryption provides a secure connection between your server and the database cluster.

  1. Download the root certificate and place it in the folder ~/.postgresql/:

    mkdir -p ~/.postgresql/
    wget https://storage.dbaas.servercore.com/CA.pem -O ~/.postgresql/root.crt
    chmod 0600 ~/.postgresql/root.crt
  2. Connect to the cluster:

    psql --host=<host> \
    --port=<port> \
    --user=<database_user_name> \
    --dbname=<database_name> \
    --sslmode=verify-ca

    Specify:

    • <host> — DNS address of the node;
    • <port> — connection port;
    • <database_user_name> — database user name;
    • <database_name> — database name.

Connect without SSL

  1. Open the CLI.

  2. Connect to the cluster:

    psql --host=<host> \
    --port=<port> \
    --user=<database_user_name> \
    --dbname=<database_name> \
    --sslmode=disable

    Specify:

    • <host> — DNS address of the node;
    • <port> — connection port;
    • <database_user_name> — database user name;
    • <database_name> — database name.