$ ps aux | grep dhc
root      4834  0.0  0.0   1936   856 ?        Ss   08:39   0:00 /usr/sbin/dhcdbd --system
dhcp      5038  0.0  0.1   2452  1232 ?        S    08:39   0:00 /sbin/dhclient -1 -lf /var/lib/dhcp3/dhclient.eth0.leases -pf /var/run/dhclient.eth0.pid -q -e dhc_dbus=31 -d eth0
dhcp      8111  0.0  0.0   2452   816 ?        S<s  10:39   0:00 dhclient3 -pf /var/run/dhclient.eth0.pid -lf /var/lib/dhcp3/dhclient.eth0.leases eth0
dreamer   8350  0.0  0.0   2884   752 pts/3    R+   11:13   0:00 grep dhc