In reading a SQL installation KB it mentions "Disable NetBIOS and Server Message Block
Servers in the perimeter network should have all unnecessary protocols disabled, including NetBIOS and server message block (SMB)". However, other information I have seen indicates that SMB and Netbios are tied to resource sharing and DHCP. I also see, " Port 445, port 445 is deeply embedded in Windows and can be difficult or impossible to safely close. While its closure is possible, other dependent services such as DHCP".
So how can I determine if these can be truned off without inadvertantly effecting network functions such as newotk browsing, printer location ect.
Thanks for any help.