【正文】 ,作為最快捷方 便的溝通工具，目前即時通訊已經(jīng)被廣泛的應(yīng)用到了日常的工作和學(xué)習(xí)中，即時通訊用戶每天都有大量的資料文件在互聯(lián)網(wǎng)上往來或被保存，因此，作為信息傳輸?shù)慕K端，即時通訊個人信息處理的功能將根本上決定即時通訊產(chǎn)品本身的生命力，這其中不僅包括了文字對話、語音通話，視頻交流在內(nèi)的信息交互功能，還包括了文件傳輸，發(fā)送圖片的信息共享功能，同時還包括了聊天記錄的有效保存，下傳下載的信息管理功能。 跟隨互聯(lián)網(wǎng)發(fā)展和網(wǎng)絡(luò)用戶需求的腳步，由人氣匯聚所帶來的社區(qū)化和互動性也將成為即時通訊的重要發(fā)展趨勢。在占據(jù)即時通訊市場 ％的騰訊 之后，微軟 MSN、網(wǎng)易泡泡、雅虎通、 Skype等紛紛進(jìn)入市場，使出渾身解術(shù)爭奇斗艷。恰恰也就是這一句簡單的話，就見證了即時通訊與中國互聯(lián)網(wǎng)共生共榮的歷史。網(wǎng)絡(luò)文件服務(wù)器是基于面向過程的技術(shù)，受到 C 編程語言的約束，就像其它的重要的遠(yuǎn)程過程調(diào)用技術(shù)（分布式計算環(huán)境）一樣。國外各大通 信設(shè)備廠商都在 IPv6 的應(yīng)用與研究方面投入了大量的資源，并開發(fā)出了相應(yīng)的軟硬件。 為了徹底解決互聯(lián)網(wǎng)的地址危機， IETF 早在 20 世紀(jì) 90 年代中期就提出了擁有 128 位地址的 IPv6 互聯(lián)網(wǎng)協(xié)議，并在 1998 年進(jìn)行了進(jìn)一步的標(biāo)準(zhǔn)化工作。這一協(xié)議的成功促成了互聯(lián)網(wǎng)的迅速發(fā)展。客戶端 服務(wù)器技術(shù)向嵌入能力的演化給應(yīng)用系統(tǒng)的執(zhí)行增加了少量的挑戰(zhàn)。在軟件層中支持這種通訊的技術(shù)稱為中間 件（ middleware）。主機被很多外圍客戶終端圍繞著，而這些終端僅僅簡單地支持信息的表現(xiàn)。計算機技術(shù)、電子業(yè)、網(wǎng)絡(luò)通信以及傳輸技術(shù)的快速發(fā)展，使得即時通信在各方面都有了長足的發(fā)展，其中以 C/S 結(jié)構(gòu)為代表。 it guarantee the security of the entire system through a series of plex shakehand authentication mechanism. In future it will guarantee the safeguard measures that the user is using of based on the existing foundation: One measure is that the local information memory and the work intelligence transmission encryption algorithm。s motion demand is higher。s technology, one of first generation of successful distributed puter technologies, is based on the open style work putation. The work file server is the technology based on the orientedprocess, is held in the C programming language, like other important longdistance procedure call technologies (distributed puting environment). The two kinds of technologies all realize the document sharing ability widely. The database server technology provides that the different client platform access the longdistance database system by these lower levels distributed puting ability. Has the matter you Q I!, not long since this speech is widely popular both sides of the river during one night, bees standard message while people leave. The only word witnesses the coprosperity and coindignity history of the timely munication and the Chinese Inter. That can’t deny that, the timely munication facilities which take the fast, interactive, easily as the representative, already became the work munication tool which the current work users mostly like. The other Inter increment services Based on the timely munications platform, like the phoic, music order, information sharing and so on are also changing people39。s data accessing, the Client Server technical has supported to connect through the local area work (LAN) to the rear end largescale machinery, the small machine and the workstation server system. The technology which Supports this kind of munication in the software level is called as the middleware. At first, the middleware is installed to support the Client Server work munication conventional ability between the PC and the server platform. Along with the technical development, the middleware is embedded in the operating system gradually, so it became one kind of ordinary ability in the client platform and the server platform. The client system which the middleware has been embedded in supports to the application procedure service which are operated through the local and the work now. The evolvement from the Client Server technology to the embedded ability increases a few challenges for the application system execution. Recently the ClientServer technology is being replaced gradually by the Ntier Object Oriented solution. The Ntier solution Based on the Java application procedure server has contained to support the thin client terminal user interface, strengthened the expandability and the reliability at the same time. Now the interconnection work is mostly based on IPv4 protocol. The success of the protocol has facilitated the Inter rapid development. But, along with the Inter user quantity is increasing unceasingly and the application request of the Inter is enhancing, the want of the IPv4 is appearing gradually. Most incisive question is the growing huge demand of the Inter resources and the omen of the insufficient IPv4 address space. At present the IPv4 address has already assigned about 70%. Among it B kind of address already is exhausted. According to the IETF forecast, the IPV4 address resources will be exhausted in 2020 ~2020 year. Moreover, because the IPv4 address plan cannot support the address gathering mendably, the existing Inter is facing the pressure which the route table inflates unc