QuestionQ300
Intrusion Detection System RulesA firewall is a combination of hardware and software that provides security for a network. It protects an internal network or intranet from unauthorized access originating from the Internet or other external networks. It restricts inbound and outbound access and can examine all traffic between an internal network and the Internet. Users can configure a firewall to allow or block packets from specific IP addresses and ports. Which of the following tools functions as a firewall for the Linux 2.4 kernel?
- A Stunnel
- B IPTables
- C IPChains
- D OpenSSH
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