5.3 – SMB2 and SFTB file proxy Spark Gateway can also act as a SMB2/SFTP file proxy. User can access their SMB share, SFTB files with file.html with the following advantages: No need to expose your SMB, SFTB server. Protected with TLS encryption. No need to expose RPC, pipe access with SMB. Easily integration file access with our HTML5 interface and library.