How to access SQL Server running on host from guest

[romrom]

I have a guest machine (Windows XP 32-bit) and I would like to know how I can set up SQL Server on the host (Windows 10) so that the guest can access the SQL Server instance. The host is running SQL Express. Is this possible?

[scottgus1]

The VM can access host network services using a Bridged or Host-Only network. See Virtualbox Networks: In Pictures

[AndyCot]

Need to configure the MSSQL service to use TCP.

Suggest:
1) use goolge to find out how to settup MSSQL server and client to used TCP
2) Use MS SSMS on host to ensure that the MMSQL server is running and you can connect via port 1433
3) Allow port 1433 between host and client. See the VB manual or check out the following thread is you have issues:
viewtopic.php?f=7&t=107999&hilit=port

The main thing is to use TCP and not pipes as it's allot easier to setup and configure.

[scottgus1]

Allow port 1433 between host and client.

This port must be allowed in the host's and VM's OS firewalls. But if Bridged or Host-Only networking is used, no port forwarding need be done in any Virtualbox settings.