The correct answer is ifconfig. The ifconfig command is one of the most commonly used programs from the net-tools suite for network interface configuration. In its basic form, it allows users to configure, manage, and query the settings of network interfaces. It's important to note that while ifconfig is still used on many systems, it is considered deprecated in favor of the more modern ip command from the iproute2 suite. The other answers are not correct because netstat is mainly used for displaying network connections, routing tables, interface statistics, masquerade connections, and multicast memberships. iwconfig is used to configure wireless network interfaces, and hostname is used to show or set the system's host name, not to manage network interfaces.