root@debian1:/# /etc/init.d/networking restart
Running /etc/init.d/networking restart is deprecated because it may not enable again some interfaces ... (warning).
Reconfiguring network interfaces...Internet Systems Consortium DHCP Client 4.1.1-P1
Copyright 2004-2010 Internet Systems Consortium.
All rights reserved.
For info, please visit
https://www.isc.org/software/dhcp/Listening on LPF/eth0/08:00:27:a5:15:54
Sending on LPF/eth0/08:00:27:a5:15:54
Sending on Socket/fallback
DHCPRELEASE on eth0 to 192.168.0.1 port 67