![]() Thunderbolt ports are identifiable by the small lightning symbol printed on the computer's case next to the port. This article explains.Ĭertain Mac computers include an interface for external devices (or peripherals) known as Thunderbolt. This interface is easily confused with a different port. TCP dynamic portsĭynamic ports - is the dynamic port SQL is currently listening onCertain Mac computers include an interface for external devices (or peripherals) known as Thunderbolt. Then use the following table to determine whether the named instance is listening on a dynamic or static port. Scan the output for a row that has an Any IP Address entry in the DisplayName column for your instance, or check the values of TcpDynamicPorts and TcpPort for the row. In the output, check the value in the ListenOnAllIPs column for your SQL Server instance (refer to the corresponding value in ServerInstance for that row). Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL12.*\MSSQLServer\SuperSocketNetLib\Tcp\IP*\" | Select-Object -Property TcpDynamicPorts,TcpPort, DisplayName, IpAddress |Format-Table -AutoSize Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL12.*\MSSQLServer\SuperSocketNetLib\Tcp" | Select-Object -Property Enabled, KeepAlive, |Format-Table -AutoSize Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL13.*\MSSQLServer\SuperSocketNetLib\Tcp\IP*\" | Select-Object -Property TcpDynamicPorts,TcpPort, DisplayName, IpAddress |Format-Table -AutoSize Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL13.*\MSSQLServer\SuperSocketNetLib\Tcp" | Select-Object -Property Enabled, KeepAlive, |Format-Table -AutoSize Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL14.*\MSSQLServer\SuperSocketNetLib\Tcp\IP*\" | Select-Object -Property TcpDynamicPorts,TcpPort, DisplayName, IpAddress |Format-Table -AutoSize Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL14.*\MSSQLServer\SuperSocketNetLib\Tcp" | Select-Object -Property Enabled, KeepAlive, |Format-Table -AutoSize Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL15.*\MSSQLServer\SuperSocketNetLib\Tcp\IP*\" | Select-Object -Property TcpDynamicPorts,TcpPort,DisplayName, IpAddress |Format-Table -AutoSize Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL15.*\MSSQLServer\SuperSocketNetLib\Tcp" | Select-Object -Property Enabled, KeepAlive, |Format-Table -AutoSize The Console window displays all the relevant TCP/IP for all your SQL Server instances (SQL Server 2014 through SQL Server 2019) that are currently installed on the system. Run the following script in the PowerShell ISE. After you start the instance, the value field will reflect the dynamic port that the instance is currently using. TCP dynamic portsĭynamic ports - is the dynamic port that SQL Server is currently listening on.Ī value of 0 in TCP dynamic ports indicates that the named instance is currently not running and is configured for dynamic ports. (You will probably see both IP4 and IP6 addresses.) To check whether a specific IP address is configured for a dynamic versus static port, use the following table. More IP addresses appear for each IP address on the computer. One of these IP addresses is intended for the loopback adapter, 127.0.0.1. ![]() Notice that several IP addresses appear in the format of IP1, IP2, up to IP All. SQL Server instance using dynamic or static ports?ĭynamic ports - is the dynamic port that SQL Server is currently listening onĬoncurrently listening on a dynamic port and a static port Go to IP Addresses, and scroll to the bottom of the TCP/IP Properties page.Ĭheck the values in IP All, and use the following table to determine whether the named instance is listening on a dynamic or static port. In SQL Server Configuration Manager, expand SQL Server Network Configuration, expand Protocols for instance name, and then double-click TCP/IP.Ĭheck the value in the Listen All setting. Option 1: Use SQL Server Configuration Manager Use the following procedure to determine whether the SQL Server named instance is listening on a dynamic port versus a static port. For more information about static and dynamic ports in the context of SQL Server, see Static vs Dynamic Ports. You can also configure SQL Server named instances to start at a specific port. It gets an available port from the operating system. This information can be helpful when you troubleshoot different connection issues that are related to SQL Server.īy default, a SQL Server named instance is configured to listen on dynamic ports. This article discusses how to determine whether your Microsoft SQL Server named instance is listening on a dynamic port versus a static port.
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