本文目录
防火墙——firewall，名字的由来
Firewall technology first began to emerge in the late 1980s. Internet was still a fairly new technology in terms of its global usage and connectivity. The original idea was formed in response to a number of major internet security breaches, which occurred in the late 1980s. In 1988 an employee at the NASA Ames Research Center in California sent a memo by email to his colleagues that read, “We are currently under attack from an Internet VIRUS! It has hit Berkeley, UC San Diego, Lawrence Livermore, Stanford, and NASA Ames.“ This virus known as the Morris Worm was carried by e-mail and is now a common nuisance for even the most ambiguous domestic user. The Morris Worm was the first large scale attack on Internet security, of which the online community neither expected, nor were prepared for. The internet community made it a top priority to combat any future attacks from happening and began to collaborate on new ideas, systems and software to make the internet safe again.
The first paper published on firewall technology was in 1988, when Jeff Mogul from Digital Equipment Corp. developed filter systems know as packet filter firewalls. This fairly basic system was the first generation of what would become a highly evolved and technical internet security feature. From 1980-1990 two colleagues from AT&T Bell Laboratories, Dave Presetto and Howard Trickey, developed the second generation of firewalls known as circuit level firewalls. Publications by Gene Spafford of Purdue University, Bill Cheswick at AT&T laboratories and Marcus Ranum described a third generation firewall known as application layer firewall, also known as proxy-based firewalls. Marcus Ranum’s work on the technology spearheaded the creation of the first commercial product. The product was released by Digital Equipment Corporation’s (DEC) who named it the SEAL product. DEC’s first major sale was on June 13, 1991 to a chemical company based on the East-Coast of the USA.
At AT&T Bill Cheswick and Steve Bellovin were continuing their research in packet filtering and developed a working model for their own company based upon their original 1st generation architecture. In 1992, Bob Braden and Annette DeSchon at the University of Southern California were developing their own fourth generation packet filter firewall system. The product known as “Visas” was the first system to have a visual integration interface with colours and icons, which could be easily implemented to and accessed on a computer operating system such as Microsoft’s Windows or Apple’s Mac/OS. In 1994 an Israeli company called Check Point Software Technologies built this in to readily available software known as FireWall-1. A second generation of proxy firewalls was based on Kernel Proxy technology. This design is constantly evolving but its basic features and codes are currently in widespread use in both commercial and domestic computer systems. Cisco, one of the largest internet security companies in the world released the product to the public in 1997.
The new Next Generation Firewalls leverage their existing deep packet inspection engine by sharing this functionality with an Intrusion-prevention system.
对不起，是英文的，请自己翻译啦!
windows firewall在哪
第一步在win10系统上按win+R键打开运行，输入“services.msc”，点击确定，进去系统服务。
第二步进去系统服务界面之后，我们首先找到“Windows Installer”服务，双击进去，
第三步进去“Windows Installer”服务之后，进行启动服务，点击确定，
第四步在系统服务列表找到“Windows Update”服务，双击进去，进行启动服务，
第五步进去控制面板，对windows Defender防火墙进行开启，
第六步我们再打开系统服务，在列表中可以看见防火墙服务Windows Defender Firewall。
COMODO Firewall 什么都要拦截怎么办
1.如果不是最新版就去comodo下载最新版，记得看清不要下错了，安装时选择只安防火墙，然后下面的就省略了。
是最新版，防火墙选项→高级设置→防火墙行为设置→一般设置：自定义规则模式；警告设置：低；高级：选中前三个，保存。
DEFENSE+设置→禁用；新人被信任软件商数字签名的软件程序；永远禁止defense。如果有防病毒软件的话，完成。
2.没有就搜索ESET，在eset下载下载EAV安装，安装后在网上搜eset最新升级id并输入，然后搜索eset激活程序，按提示操作去掉弹出的激活窗口即可。
comodo firewall怎么设置，详细点，谢谢
如果刚接触毛豆最好不要设置！（高手除外）
只要把毛豆的防火墙行为设置成“学习模式”就行（让毛豆学习你的使用习惯），一星期后在改成“安全模式”或更高的模式（按自己的习惯来）！
毛豆是一款很烦的防火墙，换个角度想就是负责任，所以他或不停的提示你是不是同意次程序运行。如果是信任的就点总是信任就可以了！
你的cf进不了，应该是被拦截了，或者打开cf的时候又让你选择是非同意运行你没注意，解决办法,：把你现有的安全级别调低一点!
