Peter is a Linux network admin. As a knowledgeable security consultant, he turns to you to look for help on a firewall. He wants to use Linux as his firewall and use the latest freely available version that is offered.
What do you recommend? Select the best answer.
A . Ipchains
B . Iptables
C . Checkpoint FW for Linux
D . Ipfwadm
Answer: B
Explanation:
Ipchains was improved over ipfwadm with its chaining mechanism so that it can have multiple rulesets. However, it isn’t the latest version of a free Linux firewall. Iptables replaced ipchains and is the latest of the free Linux firewall tools. Any Checkpoint firewall is not going to meet Jason’s desire to have a free firewall. Ipfwadm is used to build Linux firewall rules prior to 2.2.0. It is a outdated version.