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3 application-level firewalls for Linux distributions

Dec 12, 2011, 16:01 (0 Talkback[s])

[ Thanks to finid for this link. ]

"A packet filtering firewall, designed to regulate incoming and outgoing packets from a network or an operating system, is akin to security personnel guarding the entrance to a commercial or residential property. Such a system has very little authority, unless given additional powers, in what applications inside the operating system or network are able to do.

"That is where an application firewall' comes into play. It is designed to ensure that applications in an operating system (or in some instances, a network) adhere to access control rules that govern their "activities." It should be noted that an application firewall, like a stateful packet filter, is not a one-shot security solution. It merely adds an extra layer of security to a system, complementing other security protocols and systems in place. That idea also formed the main point of why your computer needs a firewall enabled."

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