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?
To ensure that the setting is saved across system restarts on a Linux router, you need to make a persistent change in the system configuration files. Modifying /etc/sysctl.conf to include net.ipv4.ip_forward=1 is the correct approach, as this file is read and applied during system boot. This ensures that the packet forwarding setting persists across reboots.
C - ok
It should be /etc/sysctl.conf, not /etc/sysct1.conf. But otherwise C is correct.