linux强制开启dhcp
Linux renew ip command
The -r flag explicitly releases the current lease, and once the lease has been released, the client exits. For example, open terminal and type the command:$ sudo dhclient -r
Now obtain fresh IP:$ sudo dhclient
There is no need to restart network service. Above command should work with any Linux distro such as RHEL, Fedora, CentOS, Ubuntu and others. On a related note you can also try out the following commands:# ifdown eth0
# ifup eth0
# /etc/init.d/network restart
OR# /etc/init.d/networking restart