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In today's digital age, databases are the backbone of countless applications and services. To establish a connection to a database, we use specific port numbers. This article concisely overviews the most common port numbers used for popular database systems.
The most common ports used for online databases are:
| Database | Ports |
| MySQL (and MariaDB) |
Port 3306 is the default for MySQL and MariaDB database connections. |
| PostgreSQL |
Port 5432 is the default for PostgreSQL database connections. |
| Microsoft SQL Server (MSSQL) |
Port 1433 is the default for SQL Server database connections. Port 1434 is used for SQL Server's SQL Browser service (when using named instances). |
| Oracle Database |
Port 1521 is the default port for Oracle database connections. |
| MongoDB |
Port 1521 is the default port for Oracle database connections. |
| Redis |
Port 6379 is the default port for Redis connections. |
| Cassandra |
Port 9042 is the default port for Cassandra database connections (CQL - Cassandra Query Language). |
These ports are typically used for the default database setup, but they can be changed based on the specific configuration of the database server. Always ensure proper firewall configurations and secure access protocols to protect the database when using online services.
Additional Tips:
- Security: Prioritize database security by implementing strong passwords, regular security audits, and robust access controls.
- Performance: Optimize database performance by tuning queries, indexing data appropriately, and considering caching strategies.
- Monitoring: Continuously monitor your database systems to identify and resolve potential issues promptly.
- Backup and Recovery: Establish a reliable backup and recovery plan to safeguard your valuable data.
By following these best practices, you can ensure the optimal performance and security of your database environments.
Conclusion
By understanding these default port numbers, you can effectively configure network firewalls, troubleshoot connection issues, and enhance the security of your database systems. Remember, while these are the standard ports, specific configurations may vary. Always refer to your database server's documentation for precise port information.