Fedora手动修改IP后，重新自动获取…

使用

#dhclient eth0 只需要这一个指令即可,eth？根据实际情况填写不同的数字。

备注：

Linux Force DHCP client (dhclient) to renew ip address

Linux renew ip command
$ sudo dhclient -r //release ip 释放IP
$ sudo dhclient //获取IP

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