Use a firewall to block all incoming and outgoing connections windows 10
A computer Network Firewall is either: (1) a software program installed on your PC (2) a built-in firewall inside your modem or (3) a dedicated hardware firewall. Firewalls generally block all traffic (data transfer) unless a specific rule exception is added to allow traffic to pass. Larger corporate networks generally use a dedicated hardware firewall. […] Apr 25, 2006 · However, if you're using Windows Firewall along with an instance of SQL Server on the same computer, and you're accessing SQL Server externally via TCP/IP, you must configure Windows Firewall to allow SQL Server to receive incoming connections. There are two ways to do this: Allow connections by TCP port or allow them by application.