http://www.freebsdwiki.net/api.php?action=feedcontributions&feedformat=atom&user=207.81.253.20 2026-04-09T11:38:26Z User contributions MediaWiki 1.18.0 http://www.freebsdwiki.net/index.php/Firewall 2006-04-11T01:44:43Z

<p>207.81.253.20: </p> <hr /> <div>A '''firewall''' is a [[gateway]] device which sits between networks and examines the traffic wanting to pass through it, and makes decisions about whether to allow, deny, log, [[NAT]], and/or otherwise fiddle with that traffic on a packet-by-packet basis by consulting a ruleset it's been programmed with.<br /> <br /> The main purpose of most firewalls is to protect an internal network from malicious traffic inbound from the outside network(s), but they can also be used to monitor and/or control outbound traffic. In particular, in work-related environments it can be useful to deny outbound traffic on ports used for non-work-related peer-to-peer file-sharing networks; and to deny and log outbound traffic that is characteristic of malware-related activity.<br /> <br /> Under FreeBSD, three kernel firewalls are available; [[ipfw]], [[pf]], and [[ipf]].<br /> <br /> see also: [[Firewall, Configuring]], [[Network Address Translation]], [[Gateway]]<br /> <br /> [[Category:FreeBSD Terminology]]<br /> [[Category:Securing FreeBSD]]</div>

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