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title Create or Delete a Server Alias for Use by a Client | Microsoft Docs
ms.custom
ms.date 03/14/2017
ms.prod sql
ms.prod_service high-availability
ms.reviewer
ms.technology configuration
ms.topic conceptual
f1_keywords
server alias
helpviewer_keywords
aliases [SQL Server], deleting
aliases [SQL Server], creating
ms.assetid b687e376-ee33-470d-b65a-87246bfefe6f
author MikeRayMSFT
ms.author mikeray

Create or Delete a Server Alias for Use by a Client

[!INCLUDEappliesto-ss-xxxx-xxxx-xxx-md] This topic describes how to create or delete a server alias in [!INCLUDEssCurrent] by using SQL Server Configuration Manager. An alias is an alternate name that can be used to make a connection. The alias encapsulates the required elements of a connection string, and exposes them with a name chosen by the user. Aliases can be used with any client application. By creating server aliases, your client computer can connect to multiple servers using different network protocols, without having to specify the protocol and connection details for each one. In addition, you can also have different network protocols enabled all the time, even if you only need to use them occasionally. If you have configured the server to listen on a non-default port number or named pipe, and you have disabled the SQL Server Browser service, create an alias that specifies the new port number or named pipe.

Using SQL Server Configuration Manager

To create an alias

  1. In SQL Server Configuration Manager, expand SQL Server Native Client Configuration, right-click Aliases, and then click New Alias.

  2. In the Alias Name box, type the name of the alias. Client applications use this name when they connect.

  3. In the Server box, type the name or IP address of a server. For a named instance append the instance name.

  4. In the Protocol box, select the protocol used for this alias. Selecting a protocol, changes the title of the optional properties box to Port No, Pipe Name, or Connection String.

The connection strings described in [!INCLUDEssNoVersion] Configuration Manager Help can be useful for programmers who create their own connection strings. To access this information, in the New Alias dialog box, press F1, or click Help.

Note

If a configured alias is connecting to the wrong server or instance, disable and then reenable the associated network protocol. Doing this clears any cached connection information and allows the client to connect correctly.

To delete an alias

  1. In [!INCLUDEssNoVersion] Configuration Manager, expand SQL Server Native Client Configuration, and then click Aliases.

  2. In the details pane, right-click the alias that you want to delete, and then click Delete.