ifup - start a preconfigured net interface.
ifdown - stop a (preconfigured) net interface.
ifstatus - show the state of a (preconfigured) net interface.
ifrenew - renews the dhcp lease on a net interface.
ifprobe - checks if the configuration for the interface has changed
ethtool - Display or change ethernet card settings
ifconfig - configure a network interface
netstat - Print network connections, routing tables, interface statistics, masquerade connections, and multicast memberships
route - show / manipulate the IP routing table
提示：netstat -ie和/sbin/ifconfig等同。