openstack/openstack-manuals
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Merge "made change to intro to fw in networking guide"

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Jenkins 2015-01-14 12:06:48 +00:00 committed by Gerrit Code Review
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doc/networking-guide/section_intro-firewalls.xml
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@ -11,10 +11,10 @@
<title>Firewalls</title>
<para>A firewall is a network security system that controls the
network traffic using a set of rules. For example, a firewall might
network traffic using a set of rules. Firewalls can be implemented in both hardware and software, or a mix of the two. For example, a firewall might
disallow traffic originating from a range of IP addresses or only
allow traffic on specific ports. Firewalls are often used between
internal networks, where data is trusted, and external networks
internal networks, where data is trusted, and on external networks
such as the Internet.</para>
<para>Many firewalls incorporate Network Address Translation (NAT).