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