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1、VisNetic FirewallVisNetic Firewall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。VisNetic Firewall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。VisN
2、etic Firewall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。VisNetic Firewall可以自动锁定那些对服务器端口恶意扫描的行为，锁定Syn Flood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。VisNetic Firewall Installation GuidePreparing for InstallationTo ensure a smooth and trouble-free installation of the VisNetic Fir
3、ewall, there aresome steps that you must take before running the setup program.Record Your TCP/IP SettingsNOTE: This step is critical if you are installing onto an NT4 computer!During the installation of VisNetic Firewall, you will be asked questions regarding theusage of each of the network adapter
4、s in your computer. In order to answer thesequestions, before you begin the installation you should record the followinginformation about each adapter in your system: Adapter Name: record the name of the adapter as it appears in your WindowsNetwork properties Connection Type: is this adapter connect
5、ed to your internal LAN or to yourInternet connection? TCP/IP Settings: record the IP address(es), DNS Server settings, GatewaysettingHINT: A quick way to collect the adapter name and TCP/IP settings is to save theoutput from the Windows ipconfig command (this command is not available onWindows 95).
6、Open the Command Prompt (or the MS-DOS Prompt on Windows 98 systems)Type in the following:ipconfig /all tcp.txtThis will output the TCP/IP settings for all adapters in your system to a text filecalled tcp.txt. You can then open this file in Notepad and print it out for referenceduring the installati
7、on. If you have 2 adapters with the same name, the order thatthey appear in the ipconfig output will be the same order that they are detectedduring the VisNetic Firewall installation.Formulate a Security PolicyBefore installing VisNetic, you should have a clear picture of the security policy thatyou
8、 want the firewall to enforce. If you are installing VisNetic Firewall on an Internetserver, what service(s) do you need to make available to the public? Are yourunning a web server, email server, FTP server?If you are installing VisNetic Firewall on a computer that requires outbound access tothe In
9、ternet, what software do you want to allow to communicate? Do you requirebrowser access, FTP client access, remote control access?Because (by default) VisNetic Firewall works on the premise that all traffic will beblocked unless you specifically allow it, knowing what you want to permit through thef
10、irewall is essential to ensuring that the firewall is blocking unwanted traffic, while stillallowing access to the Internet services that you require.Begin the InstallationOnce you have completed the above steps, you are ready to begin. To start theinstallation, double click on the setup file that y
11、ou downloaded from the VisNeticFirewall web site.Setup: Welcome Screen & License AgreementWhen you execute the VisNetic Firewall setup file, you are presented with aWelcome Screen. It is recommended that you exit all other Windows programsbefore continuing with the installation. If you have other pr
12、ograms running, click theCancel button to exit the installation, exit all other programs, then rerun the VisNeticFirewall setup file.If you have no other Windows programs running, click the Next button to continuewith the installation.You will then be presented with the End User License Agreement.On
13、ce you have read over the End User License Agreement, if you agree with theterms of the license click the I agree. radio button and click Next to continue.Setup: User InformationOn the User Information screen, enter your Name and Company Name. If you havepurchased a license, enter it into the Regist
14、ration Key field. If you are evaluatingVisNetic, leave the Registration Key field blank and click the Next button.If you have left the Registration Key field blank, you will be presented with a screenwhere you can choose to evaluate either the Workstation or the Server Version ofVisNetic Firewall.Im
15、portant: If you are installing VisNetic Firewall onto a computer running NT4Server or Windows 2000 Server, you must choose the Server Version. If you areinstalling onto any other operating system, you can choose to evaluate either theServer or Workstation Version.Setup: Installation DirectoryThe default installation folder for VisNetic Firewall isc:Program FilesDVisNetic Firewall.If you would like to install VisNetic Firewall into a different folder, type the newlocation into the text field, or click the Browse button to select an installation folder.Troubleshooting Tip: If you are install
