You will certainly need ODBC drivers for Linux, but I don't know how available such a thing is. It likely will be something you have to purchase.

I found this link: Linux, ODBC and MS SQL Server 7 that speaks to the issue. There are a number of helpful followups to this link...

Good luck and report back any success!

UPDATEHere is an attempt at a Free TDS FreeTDS specifically to address this issue. Appears to be "Free as in Beer".