sudo systemctl status postgresqlservices.msc from Run), and check if the PostgreSQL service is running.psql command: psql -h hostname -U username -d databasename replacing hostname, username, and databasename with your actual server details.postgresql.log or within a log directory.sudo iptables -L to list firewall rules.postgresql.conf and pg_hba.conf files are correctly configured to allow connections:postgresql.conf, check the listen_addresses and port directive.pg_hba.conf, ensure your client's IP and connection method (e.g., host, hostssl) are correctly specified. sudo systemctl restart postgresqlservices.msc).top, htop, df, and free.psql -U username -l.(Perfect for DevOps & SREs)
(Perfect for DevOps & SREs)



