A security appliance is any form of
server appliance that is designed to protect
computer networks from unwanted traffic.
Types of Security Appliances
* Active devices block unwanted traffic. Examples of such devices are
firewalls,
anti virus
Antivirus software (abbreviated to AV software), also known as anti-malware, is a computer program used to prevent, detect, and remove malware.
Antivirus software was originally developed to detect and remove computer viruses, hence the name. ...
scanning devices, and
content filtering
An Internet filter is software that restricts or controls the content an Internet user is capable to access, especially when utilized to restrict material delivered over the Internet via the Web, Email, or other means. Content-control software dete ...
devices.
* Passive devices detect and report on unwanted traffic, such as
intrusion detection appliances.
* Preventative devices scan networks and identify potential security problems (such as
penetration testing and
vulnerability assessment appliances).
*
Unified Threat Management (UTM) appliances combine features together into one system, such as some firewalls, content filtering,
web caching etc.
References
Server appliance
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