Ubuntu 10.04
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DHCP Server2010/07/19

  Configure DHCP ( Dynamic Host Configuration Protocol ) Server. If you make your linux computer DHCP server, it's neccesarry to disable DHCP function on router in LAN.

[1] Install and configure DHCP
aptitude -y install dhcp3-server

vi /etc/dhcp3/dhcpd.conf

# line 17: specify domain name

option domain-name

# line 18: specify nameserver's hostname or IP address

option domain-name-servers

# add at the bottom

# specify network address and subnet mask

subnet netmask {
# specify default gateway

option routers;

# specify subnet-mask

option subnet-mask;

# specify the range of leased IP address

range dynamic-bootp;


/etc/init.d/dhcp3-server start

  * Starting DHCP server dhcpd3
[ OK ]
[2] Configure on client PC. This example is on Windows 7. Open network settings and select "internet protocol" and click "property" button.
[3] Check boxes like below, then IP address is re-configured automatically.
[4] See the network status. Automatical configuration is done.
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