| 摘要 |
PROBLEM TO BE SOLVED: To easily open a direct communication path directly transferring data between a client device connected to a public server and a private server without being visible from a network of the public server.SOLUTION: A private XMPP server includes: a public internal client function section to which an XMPP communication function which conforms to an XMPP communication protocol is provided from a public XMPP server; and a private server function section opening, between itself and an XMPP client device, a private communication path through which data is directly transferred by the XMPP communication function. The XMPP client device includes: a public external client function section to which the XMPP communication function is provided from the public XMPP server; and a private client function section opening a private communication path between itself and the private XMPP server by the XMPP communication function. |
