DHCP

vim /etc/dhcp/dhcpd.conf

default-lease-time 600;
max-lease-time 7200;
option subnet-mask 255.255.255.0;
option broadcast-address 192.168.1.255;
option routers 192.168.1.1;
option domain-name-servers 200.135.37.65;
option domain-name "aval13.edu.br";

subnet 192.168.1.0 netmask 255.255.255.0 {
   range 192.168.1.137 192.168.1.139;
}

host cliente {
    hardware ethernet 08:00:27:A8:DA:CC;
    fixed-address 192.168.1.138;
}