What port must be opened by your network's firewall to connect to Azure SQL Database?

To connect to Azure SQL Database, port 1433 must be opened on your network's firewall. This port is the standard port used for Microsoft SQL Server communications, including Azure SQL Database. When applications or clients attempt to connect to an Azure SQL Database instance, they initiate a request through this port.

Understanding the importance of this port is crucial for ensuring successful communication between your application and the Azure SQL Database. If port 1433 is blocked, the application will not be able to establish a connection, leading to connectivity issues.

Other ports listed, such as 8080, 3306, and 5432, are associated with different services. Port 8080 is typically used for alternative web traffic or applications. Port 3306 is commonly used for MySQL databases, while port 5432 is the standard port for PostgreSQL databases. Hence, they aren't applicable for an Azure SQL Database connection.