六款网络与信息安全产品评介作者：来源：《中小学信息技术教育》2007年第03期网络进入教学，拓展了教学和管理的时空，但同时网络病毒、木马、黑客以及各种信息垃圾也随之而来，不仅严重损坏计算机，阻塞校园网络系统，影响正常教学和办公，还时刻危害着学生的身心健康……因而，作为网络系统的安全防线，网络与信息安全产品责任重大。
以下几款产品是网络与信息安全领域的佼佼者，编辑略加点评，以方便网络管理人员选择和使用。
【硬件篇】中科新业网络哨兵STNG系列中科新业网络哨兵STNG系列采用旁路侦听的方式接入网络，其部署方式灵活多样，可单机部署，也可采用分布式方式部署，满足来自教育信息安全市场的多种需求。
它内置450万条分类网址记录、1.2亿网页信息、80多种应用网络协议分析，能够对基于HTTP、FTP、BT、邮件、聊天工具、TELNET、游戏、音视频等协议的行为进行记录，并可设置多种本地（中心端）报警策略，能够透明地审计并管理师生的上网行为，屏蔽各种不良网站，营造绿色校园网络环境。
点评：它采用旁路侦听的方式接入网络，既不会改变用户现有的网络结构，又不会影响上网速度。
中科新业网络哨兵STNG系列的安装操作方便，目前已在全国几百所中小学得以广泛应用，是一款帮助教育系统管理、净化校园网络的优秀安全产品。
面市日期：2003年4月推荐指数：★★★★☆中唯绿色网关GQ335中唯绿色网关GQ335集防火墙、信息过滤和网络管理功能于一身。
它支持100M带宽、80000个并发连接数、100MPPS网络吞吐量，支持VPN、VLAN、DHCP、静态路由、H.323等协议环境，通过串接入网，将网络的所有端口初始化设置为封闭的，只有用到某一网站才打开相应的端口，通过软件操作平台将校园网、主题网站等可信站点添加到学生可访问的“白名单”中，从而实现对反动、黄色等不良网站100%过滤，有效控制不良信息通过互联网传播，提高用户对互联网的管理能力。
点评：中唯绿色网关是对互联网接入单位进行网络信息过滤、网络管理的计算机信息系统安全专用产品。
…with InterStim TherapyMake the choice forlifeFAMILY TECHNICAL BROCHUREInterStim ®TherapyDirect connection with the lead(no extension is required)Model 3058 InterStim IINeurostimulator,The InterStim ® System2NeurostimulatorsInterStim II Model 3058Volume 14 ml Height 44 mm Length 51 mm Thickness 7.7 mm Weight22 g Number of electrodes 4Number of screws 1Strain reliefIntegrated into neurostimulatorLead insertion indicator Integrated into headerTorque wrenchYesTined Lead Models 3093 and 3889Radiopaque marker bandsElectrodes3 2 1 03 2 1 0Model 3093Model 3889TinesBlue tipVisual bands3Tined Leads3093-28 3093-33 3093-41 3889-28 3889-33 3889-41Length (cm)283341283341Number of electrodes 4 4 4 4 4 4Electrode length (mm) 3, 10, 3, 3 3, 10, 3, 3 3, 10, 3, 3 3, 3, 3, 3 3, 3, 3, 3 3, 3, 3, 3Electrode spacing (mm) 1.5 1.5 1.5 3 3 3Blue tip (Y/N)Y Y Y Y Y Y Radiopaque Marker (Y/N) Y Y Y Y Y Y Anchor typeTinedTinedTinedTinedTinedTinedO ffers the patient the possibility to switch the stimulation configuration between 4 pre-set configurationsS implifies patient management and programming–improved graphics interface and feedback–logs therapy and program usage between visits –stores patient information and program historyS upports both InterStim II 3058 and InterStim 3023 neurostimulator ††InterStim II 3058 neurostimulator compatible only with the InterStim iCon programmer (3037).InterStim 3023 neurostimulator compatible with both original patient programmer (3031A) and InterStim iCon programmer (3037).The InterStim ® ProgrammersPatient ProgrammerInterStim iCon ®Model 30374‡ Can be used with InterStim II 3058, InterStim 3023 and InterStim TWIN 7427T neurostimulators.H andheld and portableS tores approximately 100 programming sessions C ompatible with N’Vision Report Link 8580 for printingI ntuitive touch-screen interface P ower saver screen displayE xpedites and reduces programming time–simplicity and clarity in user interface –adaptive reports reduce waste–facilitates and automates therapy evaluation via program librariesA llows for more effective patient management–provides summary of program and therapy usage data–special alerts flag common problems throughout course of therapy –transfers patient data with neurostimulator replacementsSoftware‡ClinicianProgrammerInterStim N’VisionInterStim ®N’Vision®Model 8870 NNB5Model 8840Evaluation Procedures Evaluation Phase Minimally Invasive2 Ways to evaluateEvaluation with tined lead - Advanced EvaluationL ead is placed next to the sacral nerves via a minimallyinvasive procedure under local or general anesthesiaL ead is connected—via tunneling—to a percutaneousextension exiting the skin contralaterally to the futureneurostimulator siteA dvanced Evaluation, if successful, allows patients toproceed directly to the second stage.K eeping the same lead in place for implant offersa higher reproducibility of the resultsT he lead can be easily removed and the evaluation repeated if neededBasic Evaluation with temporary lead (PNE)L ead is placed next to the sacral nerves through a percutaneous procedureL ead is secured to the outside of the patient’s sacral areaI f evaluation is inconclusive or unsuccessful, proceed to the Advanced EvaluationAdvanced EvaluationBasic Evaluation – Dual Basic Evaluationwith ground pad67Make the choice for Life …with InterStim TherapyProcedureImplantThe Exclusive Medtronic Tined Lead 1-3Minimally Invasive Implant ProcedureO ffers positioning with visual aid and radiopaquemarkers (fluoroscopy)M inimises surgical steps, which may reduce surgical andhealing timeH as tines designed to deploy as a fixation system and toallow easy removal under local anesthesiaA llows for patient feedback with local anesthesia orconscious sedationT he InterStim Therapy implant procedure directly followsa successful screening testT he InterStim neurostimulator is typically implanted inthe buttock 4L ead is connected to the InterStim neurostimulatorwhich is then placed in a pocketModel number 3093 or 3889InterStim® Tined LeadImplanted lead and neurostimulator model 3058Permanent Implant。
