Firewall是一款在Windows底下

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1、VisNeticFirewallVisNeticFirewall是一款在Windows底下，轻松的防护好计算机并阻绝外人对计算机系统的入侵的软件防火墙软件。VisNeticFirewall防火墙是一个数据包筛选软件防火墙内置到保护基于Windows的服务器，远程/移动用户和LAN工作站当前不受防火墙。VisNetic防火墙是更安全比基于应用程序的个人防火墙，是一个性价比非常高的软件防火墙。企业在使用软件或硬件实现Internet共享的解决方案时，都会担心内部网络受到威胁。VisNetic防火墙是中

2、小企业在没有硬件防火墙保护下最廉价、最有效的软件防火墙保护方案。VisNeticFirewall常用于商业工作站、企业服务器、局域网工作站，具有超越个人防火墙的安全性以及更专业的网络设置，几乎能控制你所有的上网联系。VisNeticFirewall可以自动锁定那些对服务器端口恶意扫描的行为，锁定SynFlood攻击IP，过滤任意自己定义的文件扩展名，以及强大的TCP，UDP，ICMP通讯协议的自定义。VisNeticFirewallInstallationGuidePreparingforInst

3、allationToensureasmoothandtrouble-freeinstallationoftheVisNeticFirewall,therearesomestepsthatyoumusttakebeforerunningthesetupprogram.RecordYourTCP/IPSettingsNOTE:ThisstepiscriticalifyouareinstallingontoanNT4computer!DuringtheinstallationofVisNeticFire

4、wall,youwillbeaskedquestionsregardingtheusageofeachofthenetworkadaptersinyourcomputer.Inordertoanswerthesequestions,beforeyoubegintheinstallationyoushouldrecordthefollowinginformationabouteachadapterinyoursystem:•AdapterName:recordthenameoftheadaptera

5、sitappearsinyourWindowsNetworkproperties•ConnectionType:isthisadapterconnectedtoyourinternalLANortoyourInternetconnection?•TCP/IPSettings:recordtheIPaddress(es),DNSServersettings,GatewaysettingHINT:AquickwaytocollecttheadapternameandTCP/IPsettingsisto

6、savetheoutputfromtheWindows‘ipconfig’command(thiscommandisnotavailableonWindows95).OpentheCommandPrompt(ortheMS-DOSPromptonWindows98systems)Typeinthefollowing:ipconfig/all>tcp.txtThiswilloutputtheTCP/IPsettingsforalladaptersinyoursystemtoatextfilecall

7、ed‘tcp.txt’.YoucanthenopenthisfileinNotepadandprintitoutforreferenceduringtheinstallation.Ifyouhave2adapterswiththesamename,theorderthattheyappearintheipconfigoutputwillbethesameorderthattheyaredetectedduringtheVisNeticFirewallinstallation.FormulateaS

8、ecurityPolicyBeforeinstallingVisNetic,youshouldhaveaclearpictureofthesecuritypolicythatyouwantthefirewalltoenforce.IfyouareinstallingVisNeticFirewallonanInternetserver,whatservice(s)doyouneedtomakeavailabletothepublic?Areyourunningawebserver,e