https://docs.microsoft.com/en-us/sql/sql-server/install/configure-the-windows-firewall-to-allow-sql-server-access?view=sql-server-ver15 Ports Used By the Database Engine By default, the typical ports used by SQL Server and associated database engine services are: TCP 1433 , 4022 , 135 , 1434 , UDP 1434 Ports Used By Integration Services The Integration Services service uses DCOM on port 135 Ports Used By Analysis Services By default, the typical ports used by SQL Server Analysis Services and associated services are: TCP 2382 , 2383 , 80 , 443 Ports Used By Reporting Services By default, the typical ports used by SQL Server Reporting SErvices and associated services are: TCP 80 , 443