Aug 26, 2025 · Learn how to use SQL Server Configuration Manager to configure the Database Engine to listen on a specific fixed port other than the default port, 1433.

Jan 30, 2026 · A DBA guide to SQL Server default ports, including 1433, Browser, DAC, and Availability Group endpoints.

May 19, 2025 · The default port (2383) and port 2382 should be restricted together with all other ports that aren't required. For step-by-step instructions to configure the Windows Firewall for Analysis …

Apr 14, 2022 · Learn about different network ports SQL Server uses for various components to give you an understanding of how ports are used in SQL Server.

Jul 27, 2020 · I have a VB6 application that uses SQL server. It needs to access it through a LAN. Therefore I want to make an exception in firewall. What is the default port of microsoft SQL server ? …

May 6, 2026 · Learn about network ports used for SQL Server, how to find and use the correct port to connect to SQL Server using SSMS or any application.

Sep 1, 2023 · By default SQL Server listens on TCP port number 1433, but for named instances the TCP port is dynamically configured. There are several options available to get the listening port for a …

Nov 28, 2025 · Default Port: 1433 – The Starting Point By default, SQL Server listens for connections on port 1433. This is the standard port assigned by the Internet Assigned Numbers Authority (IANA) for …

Jan 3, 2026 · For SQL Server Database Administrators, ports are not just a networking concern. They are a core dependency of availability, recoverability, and application stability.

The default port > 1433 port is the official Internet Assigned Number Authority (IANA) socket number for SQL Server. Client systems use TCP 1433 to connect to the database engine; SQL Server …