What can he used to set up a firewall on a Linux system? A. netstat B. route C. trace D. ipchains E. None of the above

netstat
route
trace
ipchains E. None of the above

The correct answer is: E. None of the above

The following are the tools that can be used to set up a firewall on a Linux system:

  • iptables: iptables is a command-line tool that allows you to configure the Linux kernel’s netfilter firewall.
  • ufw: ufw is a front-end for iptables that provides a more user-friendly interface.
  • gufw: gufw is a graphical user interface for ufw.
  • firewalld: firewalld is a complete firewall solution for Linux that provides a more flexible and powerful way to manage your firewall than iptables.

netstat, route, and trace are not tools that can be used to set up a firewall on a Linux system.

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