Open Space

Say you want to transfer files over a network in a secured mannar.Here comes the usecase of SFTP[Secure File Transfer Protocol]. SFTP is a secured protocol which is an extention of the Secure Shell protocol(SSH) provides capabilities as file accessing,file transferring and file management. This protocol encrypts both commands and data and ensure not transmitting of passwords and sensitive information over the network.SFTP functionality is similar to FTP,but since FTP uses a different protocol,you cannot use FTP client to talk to an SFTP server. To use SFTP capabilities,you can try out either graphical SFTP client or either at the command line. At command line -[In Unix or Mac OS environment] Start a SFTP session by 'sftp username@hostname' Then enter the password when prompted. Then with using sftp commands you can try-out file operations.[To get SFTP commands type 'help'] When you are using command line to SFTP operations you'll mostly remember about SCP protocol

If you are have ever try-out WSO2 ESB[1],you are quite familiar with WSO2 ESB proxy services. A proxy service is a some kind of virtual service,which fronts an existing actual service end-point and which is hosted under WSO2 ESB. Clients can send requests for proxy servic es hosted in ESB,as the client sees that service hosted in ESB without knowing of actual service end-point.Such proxy service has own WSDL which can be view from '?wsdl' parameter. Advantage of such a proxy service is t hat proxy services can mediate the sending messages to the actual service,before they are delivered to the actual end-point and can mediate the responses before those reach the client. There are several templates for proxy services as below and you can get more info on proxy services from [2]. Pass Through Proxy- Create a simple proxy service on a specified endpoint. This proxy service does not perform any processing on the messages that pass through the proxy. Secure Proxy-Create a proxy serv