How to Find SQL Server Port Number?

The SQL Server port number is an essential part of communicating with the database server. Knowing the correct port number plays a crucial role in database management and security. So, what is the SQL Server port number and how can it be found? In this guide, we will explore various methods to detect the SQL Server port number.

What is SQL Server Port Number and Why is it Important?

The SQL Server port number is the network port through which the SQL Server database server listens for connections. By default, SQL Server uses port number 1433 over the TCP/IP protocol. However, this port number can change depending on the configuration.

The port number is necessary for proper communication between the database clients and the server. An incorrect or missing port number can lead to connection issues and block database access. Additionally, knowing the correct port number is important for setting up the necessary firewall rules and ensuring security.

Methods to Find the SQL Server Port Number

There are several methods available to learn the SQL Server port number. These methods may vary depending on the SQL Server version and the operating system in use. Below, we will review the most commonly used methods.

Find Port Number Using SQL Server Configuration Manager

SQL Server Configuration Manager is a tool used for managing SQL Server configuration settings. You can easily find the SQL Server port number with this tool:

1. Open SQL Server Configuration Manager.
2. Click on "SQL Server Network Configuration" and then select "Protocols for [SQL Server Instance Name]."
3. Right-click on the "TCP/IP" protocol and choose "Properties."
4. Go to the "IP Addresses" tab and locate the "IPAll" section.
5. The port number listed in the "TCP Port" field is the port SQL Server is listening on.

Find SQL Server Port Number Using Windows Firewall

Another way to detect the SQL Server port number is through Windows Firewall settings. You can view the ports allowed for SQL Server connections in the firewall configuration:

1. Open the "Windows Firewall" settings from the Control Panel.
2. Click on "Advanced Settings."
3. Look for a rule related to SQL Server under "Inbound Rules."
4. Double-click on the rule and go to the "Protocols and Ports" tab.
5. The port number used by SQL Server can be seen in the "Local Port" field.

Find Port Information Using SQL Server Network Configuration

SQL Server Network Configuration settings are another source for determining the SQL Server port number. To access these settings, follow these steps:

1. Open SQL Server Management Studio and connect to the server.
2. Open a new query window and run the following SQL command:

                   EXEC xp_readerrorlog 0, 1, N'Server is listening on'
               

3. In the output, you will find the port number that SQL Server is listening on.

Frequently Asked Questions

What is the default port number for SQL Server?

The default port number for SQL Server is 1433.

Can I change the SQL Server port number?

Yes, you can change the port number using SQL Server Configuration Manager.

Why is it important to know the SQL Server port number?

Knowing the port number helps in troubleshooting database connection issues and implementing security measures.

What happens if I set the port number incorrectly?

Setting the port number incorrectly can lead to database connection errors and access issues.