sudo service postgresql status or systemctl status postgresql.services.msc) and check the status of the PostgreSQL service.ping <PostgreSQL_server_IP> to check network reachability.telnet <PostgreSQL_server_IP> 5432 or nc -zv <PostgreSQL_server_IP> 5432 to check if the port is open and accessible./var/log/postgresql/ on Linux systems.pg_hba.conf file for appropriate host entries that match your client's IP address or subnet.postgresql.conf file for the listen_addresses and port settings. You can also use netstat -tnlp | grep <port> (Linux) or netstat -an | find "<port>" (Windows) to verify if PostgreSQL is listening on the expected port.sudo service postgresql restart or systemctl restart postgresql.Let Dr. Droid create custom investigation plans for your infrastructure.
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