Ver:
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Dispositivo
de protección perimetral
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http://en.wikipedia.org/wiki/Firewall_%28networking%29
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Pasarela
Tecnología de
hardware y/o software que protege los recursos de red contra el acceso no
autorizado. Un firewall autoriza o bloquea el tráfico de computadoras entre
redes con diferentes niveles de seguridad basándose en un conjunto de reglas y
otros criterios.
http://es.pcisecuritystandards.org
Hardware o
software cuya misión es la de proteger una red de otra. Normalmente una red local de Internet.
[CCN-STIC-671:2006]
Dispositivo
de red físico o lógico que se utiliza para permitir, denegar o analizar las
comunicaciones entre redes de datos, de acuerdo con las políticas de seguridad
de la organización o del usuario. [CCN-STIC-614:2006]
Sistema
hardware / software que permite inspeccionar los paquetes que lo atraviesan y
en función de un conjunto de reglas permitir o denegar el paso del mismo. [CCN-STIC-641:2006]
Sistema
formado por aplicaciones, dispositivos o combinación de estos encargado de
hacer cumplir una política de control de acceso en las comunicaciones entre
dispositivos según una política de seguridad existente. [CCN-STIC-400:2006]
Cortafuegos
centrado en el control de acceso local de un determinado nodo. [CCN-STIC-400:2006]
Cortafuegos
de sistema utilizado en estaciones de usuario. [CCN-STIC-400:2006]
Propiedad de
un equipo cortafuegos que le permite ser "invisible" a los clientes y
servidores de la comunicación residiendo en la capa de enlace de datos aunque
sea capaz de intervenir a nivel de red. [CCN-STIC-400:2006]
Plataforma
que permite la definición de cortafuegos lógicos o virtuales sobre un solo
sistema físico pudiendo implementarse en ellos políticas de seguridad
diferentes y ser gestionados individualmente. [CCN-STIC-400:2006]
Dispositivo
físico o lógico que canaliza todo el tráfico entre la red privada de una
institución e Internet, para garantizar
que dicho tráfico es conforme con la política de seguridad de la institución. [Ribagorda:1997]
A hardware/software
capability that limits access between networks and/or systems in accordance
with a specific security policy. [CNSSI_4009:2010]
1. (I) An internetwork
gateway that restricts data communication traffic to and from one of the
connected networks (the one said to be "inside" the firewall) and
thus protects that network's system resources against threats from the other
network (the one that is said to be "outside" the firewall). (See:
guard, security gateway.)
2. (O) A device or system
that controls the flow of traffic between networks using differing security
postures. [SP41]
[RFC4949:2007]
A system using either
hardware or software designed to prevent unauthorized access to or from a
private network by examining each transmission block to see if it meets certain
security criteria.
//http://iab.com/
A firewall is some kind of
security barrier placed between network environments. It may be a dedicated
device, or a composite of several components and techniques. It has the
properties so that all traffic from one network environment to another, and
vice versa, must traverse through the firewall and only authorized traffic, as
defined by the local security policy, will be allowed to pass.
[ISO-18028-1:2006]
Hardware and/or software technology
that protects network resources from unauthorized access. A firewall permits or
denies computer traffic between networks with different security levels based
upon a set of rules and other criteria.
https://www.pcisecuritystandards.org/security_standards/glossary.php
A device or program that
protects the permimeter of a network. Firewalls are placed at network gateways
to prevent unwanted or malicious traffic from entering the organization's
network and block unauthorised traffic from leaving the internal traffic.
An intermediary device,
sitting between a web-client and a web server, analyzing OSI Layer-7 messages
for violations in the programmed security policy. A web application firewall is
used as a security device protecting the web server from attack.
http://www.webappsec.org/projects/glossary/
An application firewall is
an enhanced firewall that limits access by applications to the operating system
(OS) of a computer. Conventional firewalls merely control the flow of data to
and from the central processing unit (CPU), examining each packet and determining
whether or not to forward it toward a particular destination. An application
firewall offers additional protection by controlling the execution of files or
the handling of data by specific applications.
http://searchsoftwarequality.techtarget.com/glossary/
A logical or physical
discontinuity in a network to prevent unauthorized access to data or resources.
http://www.sans.org/security-resources/glossary-of-terms/
Next-generation firewalls (NGFWs)
are deep-packet inspection firewalls that move beyond port/protocol inspection
and blocking to add application-level inspection, intrusion prevention, and
bringing intelligence from outside the firewall. An NGFW should not be confused
with a stand-alone network intrusion prevention system (IPS), which includes a
commodity or nonenterprise firewall, or a firewall and IPS in the same
appliance that are not closely integrated.
http://www.gartner.com/it-glossary/
A firewall beyond
traditional port-based controls that enforces policy based on application,
user, and content regardless of port or protocol.
Cybersecurity for Dummies, Palo
Alto Networks Edition, 2014
The process of inspecting a
network packet all the way to the application layer (Layer 7) of the OSI model.
That is, past datalink, network or session headers to inspect all the way into
the payload of the packet. Deep-packet inspection is used by most intrusion
detection and prevention systems (IDS/ IPS), newer firewalls, and other
security devices. [knapp:2014]
Technologie matérielle
et/ou logicielle protégeant les ressources réseau contre les accès non
autorisés. Un pare-feu autorise ou bloque le trafic informatique circulant
entre des réseaux de différents niveaux de sécurité, selon un ensemble de
règles et d’autres critères.
http://fr.pcisecuritystandards.org/
Mécanisme de sécurité
localisé entre une zone de confiance (réseau local ou une machine personnelle)
et un réseau externe non digne de confiance (par exemple Internet). La tâche du
firewall est de contrôler et de filtrer, d'accepter ou de bloquer, en fonction
de règles de sécurité définies par un administrateur, les communications entrantes
et sortantes passant par lui. Les firewalls peuvent être de type hardware
(firewall physique) mais aussi software (notamment pour la protection des
ordinateurs personnels).
http://www.cases.public.lu/functions/glossaire/