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1.. Introduction
The ESET Smart Security architecture integrates Antivirus, Antispyware, Antispam, and the Personal firewall.
Each of these components can be configured and managed through the ESET Remote Administrator (ERA). This
manual describes how to deploy the Personal firewall in a network environment, as well as instructions on remote
management of the Personal firewall using ERA. Why install a Personal firewall on client computers, when there is a
central firewall on the company’s server? There are several reasons:
• A Personal firewall can eliminate attacks from within the local network (e.g., an infected guest notebook
connecting to the corporate network).
• A Personal firewall allows the administrator to effectively limit communication in order to decrease network
traffic, which may be an issue for remote locations or WAN connections (e.g., a rule could be created to block all
instant messaging applications and only allow the use of local SMTP servers).
• A Personal firewall can prevent malicious code from spreading further, by eliminating its ability to reach other
computers and cause further damage (e.g., when a trojan horse uses its own SMTP engine to send spam
messages and malicious code).
