| find / -name dhcpd.conf or find / -xdev -name dhcpd.conf  | 
| 
 vi /etc/dhcp/dhcpd.conf  | 
| find / -name dhcpd.leases or find / -xdev -name dhcpd.leases  | 
| cat /var/lib/dhcp/dhcpd.leases | 
| 
 /etc/init.d/isc-dhcp-server restart  | 
Quellen/Source:
- Linux Magazine Network Nirvana
- What is DHCP and how to configure DHCP server in Linux
- Ubuntu | Dynamic Host Configuration Protocol (DHCP)
- LinugConfig.org | What is DHCP and how to configure DHCP server in Linux
- some information about classes