How to renew IP address on Linux
getting IP again when you get network issues
As root perform the command below:
$ dhclient
Output:
There is already a pid file /var/run/dhclient.pid with pid 10984
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.1.1
Copyright 2004-2008 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/
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If you need to reset the networking service,execute the command below as root:
$ /etc/init.d/networking stop
$ /etc/init.d/networking start