# Configuring SQL Server client aliases

- Link: https://sharepointtechnicalsupport.com/2015/05/10/configuring-sql-server-client-aliases/
- Published: 2015-05-10T11:25:43+05:30
- Author: Deviprasad Panda

If you **block UDP port 1434 or TCP port 1433** on the computer that is running
SQL Server, you **must create a SQL Server client alias** on all other computers
in the server farm. You can use SQL Server client components to create a SQL Server
client alias for computers that connect to SQL Server.

To configure a SQL Server client alias

 1. Verify that the user account that is performing this procedure is a member of either
    the **sysadmin **or the **serveradmin **fixed server role.
 2. Run Setup for SQL Server on the target computer, and install the following client
    components:

 **Connectivity Components**

** Management Tools**

 1. Open SQL Server Configuration Manager.

  In the navigation pane, click **SQL Native Client Configuration**.
  In the main window under Items, right-click **Aliases**, and select **New Alias**.
  In the **Alias – New** dialog box, in the **Alias Name** field, enter a name for
  the alias. For example, enter SharePoint_alias.
  In the **Port No** field, enter the port number for the database instance. For
  example, enter 40000. Make sure that the protocol is set to TCP/IP.
  In the **Server **field, enter the name of the computer that is running SQL Server.
  Click **Apply**, and then click OK.
  **Verification**: You can test the SQL Server client alias by using SQL Server
  Management Studio, which is available when you install SQL Server client components.
  Open SQL Server Management Studio.
  When you are prompted to enter a **server name**, **enter **the **name of the 
  alias that you created**, and then click **Connect**. If the connection is successful,
  SQL Server Management Studio is populated with objects that correspond to the 
  remote database.
  To check connectivity to additional database instances from SQL Server Management
  Studio, click **Connect**, and then click **Database Engine**.
  **See also :**
  [Securing SharePoint: Harden SQL Server in SharePoint Environments](http://blogs.technet.com/b/rycampbe/archive/2013/10/14/securing-sharepoint-harden-sql-server-in-sharepoint-environments.aspx)
  [How to: Configure a Windows Firewall for Database Engine Access](https://msdn.microsoft.com/library/ms175043%28SQL.110%29.aspx)
  [How to: Configure a Server to Listen on a Specific TCP Port (SQL Server Configuration Manager)](https://technet.microsoft.com/en-us/library/ms177440.aspx)
  
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