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Make your SQL Server Express 2012 available from the outside

By default when you install a SQL Server Express, it is configured to be only accessible from the local machine.

Here are the steps required to make your SQL Server Express database available from the outside:

  • Run SQL Server Configuration Manager.
  • Go to SQL Server Network Configuration > Protocols for SQLEXPRESS.
  • Enable TCP/IP.
  • In the SQL Server Configuration Manager also verify that SQL Server Browser is running.

Now before you continue you have to know if you want to use a dynamic port range for SQLExpress or not. If you want to use a dynamic port range, you can immediately jump to the firewall configuration, otherwise you’ll have to do some extra configuration first:

  • Right-click on TCP/IP and select Properties.
  • Scroll down to IPAll.
  • Make the TCP Dynamic Ports empty
  • Set the TCP Port value to 1433.

Last step is to configure the firewall and add an exception that allows SQL Server traffic:

  • If you are using the dynamic ports, choose Add a program on the Exceptions tab of the Windows Firewall item.
  • Browse to the location of the instance of SQL Server that you want to allow through the firewall, for example C:\Program Files\Microsoft SQL Server\MSSQL11.<instance_name>\MSSQL\Binn, select sqlservr.exe, and then click Open.
  • If you are using a specific port, add a new inbound rule for TCP traffic on port 1433.

More information here: http://technet.microsoft.com/en-us/library/cc646023.aspx

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