On a Linux router, packet forwarding for IPv4 has been enabled. After a reboot, the machine no longer forwards IP packets from other hosts. The command: echo 1 > /proc/sys/net/ipv4/ip_forward temporarily resolves this issue. Which one of the following options is the best way to ensure this setting is saved across system restarts?

What information can be found in the file specified by the status parameter in an OpenVPN server configuration file? (Choose two.)

Which of the following lines in the sshd configuration file should, if present, be changed in order to increase the security of the server? (Choose two.)

Which of the following nmap parameters scans a target for open TCP ports? (Choose two.)

Which of the statements below are correct regarding the following commands, which are executed on a Linux router? (Choose two.)