<doc>
	<legacy_id>540</legacy_id>
	<term>firewall</term>
	<definition><p>A system with special security features, which intercepts all traffic between a local network (such as a corporate network) and the rest of the Internet.</p>
<p></p>
<p>Firewalls are used to prevent crackers from gaining access to computers on the local network.</p></definition>
	<categories>
	 	<category>The System Environment</category>
	 	<category>Networks &amp; Communication</category>
	</categories>
	<synonyms>
	 	<synonym>firewall</synonym>
	 	<synonym>firewalls</synonym>
	 	<synonym>firewalled</synonym>
	 	<synonym>firewalling</synonym>
	</synonyms>
</doc>