What ports do SQL Server use?

Question

SQL Server Browser service uses UDP static port 1434. It reads the registry for the assigned TCP port. SQL Server client library connects and sends a UDP message using port 1434. SQL Server Browser service gives back the port number of a specific instance. 17 июн. 2019 г.

Is SQL 1433 TCP or UDP?

TCP 1433. TCP port 1433 is the default port for SQL Server. This SQL port is also the official Internet Assigned Number Authority (IANA) socket number for SQL Server.

What ports do I need to open for SQL?

Which ports need to be opened in a firewall to access SQL server?Port 1433 for TCP is needed to connect to the SQL database instance. By default, SQL will attempt to use 1433. ... Port 1434 for UDP is needed to allow the automatic discovery of SQL by the workstations.

Which port is used for Microsoft SQL Server connectivity?

If enabled, the default instance of the SQL Server Database Engine listens on TCP port 1433.

What is the difference between port 1433 and 1434?

The default instance of SQL Server listens on Port 1433. Port 1434 is used by the SQL Browser Service which allows connections to named instances of SQL Server that use dynamic ports with out having to know what port each named instance is using, especially since this can change between restarts of the named instance.

Expert · Answer