Now a days many people enjoy and share their contents on any devices with cloud applications such as Dropbox or Box.net between their friend. In those service, users have to upload their own contents on the public servers. So they always are worry about handing over their personal data on the third party hands. New service arrived to remove those worry of people, that is the SelfCloud. In this service, users don't upload their personal data on the public server but place those data only on their own devices. And they can enjoy and share data in safe. The SelfCloud service do only directing the points to data on the users?devices and it is not the data center. In addition, the data placing in the same LAN are delivered directly between the devices. People who use the SelfCloud service don't worry about the safety of their own data anymore.