CIFS is to SMB as WebNFS is to NFS.
The biggest difference (between those and HTTP) is that both have
clients in the kernel. Usually, HTTP clients are in user space.
>> CIFS is an enhanced version of Microsoft's
>> open, cross-platform Server Message Block (SMB) protocol,
>> the native file-sharing protocol in the Windows 95,
>> CIFS (SMB) has been an Open Group
>> (formerly X/Open) standard for PC and UNIX
>> interoperability since 1992 (X/Open CAE Specification