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A firewall is a dedicated appliance, or software running on another computer,
which inspects network traffic passing through it configured to permit,
deny, encrypt, or proxy all computer traffic between different security domains
based upon a set of rules or other criteria.
A firewall's function within a network is similar to firewalls with fire doors
in building construction. In the former case, it is used to prevent network
intrusion to the private network. In the latter case, it is intended to contain
and delay structural fire from spreading to adjacent structures.
2Wire, 3Com , ADTRAN , Avanquest, BaByliss, Barracuda Networks Buffalo ,
Check Point , Cisco , Compaq , Computer Associates,ComSifter ,
CTG , D-Link , eBook Systems, Efficient Networks ,Exploit Prevention Labs ,
Global Marketing Partners , Greyfox ,Hewlett-Packard ,Home Portal,
HotBrick, Intrusion.com ,Kensington, Lightolier Controls , Lindy,
Linksys, LINKSYS , Multi-Tech Systems , NETBARRIER X3 , Netgear ,
Netopia , Netscreen, Netscreen Technologies Inc., Nokia , Nortel ,
Panasonic,Phoenixgold , Prosafe , Siemens , SMC , SnapGear ,Sonicwall,
Streetwires, Symantec ,TRENDnet , Trendware , Trendware Usa , USRobotics,
WatchGuard , WEBROOT SOFTWARE INC , Zoom , ZOOM TELEPHONICS , ZyXel ,ZYXEL
COMMUNICATIONS . |
