Configuration of the Linux DHCP server (redhat6.4)

Step one: Configure a static IP for the DHCP server

[[email protected] ~]# ifconfig eth0//View the configuration information of the ETH0 network card

Eth0 Link encap:ethernet HWaddr 00:0c:29:0c:c3:1f

inet addr:192.168.1.33 bcast:192.168.1.255 mask:255.255.255.0

Inet6 ADDR:FE80::20C:29FF:FE0C:C31F/64 Scope:link

Up broadcast RUNNING multicast mtu:1500 metric:1

RX packets:2519 errors:0 dropped:0 overruns:0 frame:0

TX packets:2644 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:1806182 (1.7 mib) TX bytes:1671573 (1.5 MiB)

Interrupt:18 Base address:0x2000

[[email protected] ~]# route-n//View routing table entry

Kernel IP Routing Table

Destination Gateway genmask Flags Metric Ref use Iface

192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0

0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0

Step Two:

Install the required packages for the DHCP server as required

[[email protected] ~]# rpm-q DHCP//See if DHCP package is installed, below shows not installed

Package DHCP was not installed

[[email protected] ~]# MKDIR/WW//Create a folder

[[email protected] ~]# MOUNT/DEV/CDROM/WW//mount the system image to the/WW directory

Mount:block Device/dev/sr0 is write-protected, mounting read-only

[[email protected] ~]# rpm-ivh/ww/packages/dhcp-4.1.1-34.p1.el6.x86_64.rpm//install DHCP

Warning:/ww/packages/dhcp-4.1.1-34.p1.el6.x86_64.rpm:header V3 rsa/sha256 Signature, key ID Fd431d51:nokey

Preparing ... ########################################### [100%]

1:dhcp ########################################### [100%]

[Email protected] ~]#

Step Three:

Generating a DHCP server configuration file

[Email protected] ~]# cp/usr//share/doc/dhcp-4.1.1/dhcpd.conf.sample/etc/dhcp/dhcpd.conf CP: Overwrite "/ETC/DHCP/DHCPD. Conf "? Y

Step Four: Configure the/etc/dhcp/dhcpd.conf configuration file

# dhcpd.conf

#

# Sample configuration file for ISC dhcpd

#

# option definitions common to all supported networks ...

Option Domain-name "example.org";

Option Domain-name-servers 8.8.8.8, 4.4.4.4; Specify DNS server address

Default-lease-time 600;

Max-lease-time 7200;

# Use this to enble/disable dynamic DNS updates globally.

#ddns-update-style None;

# IF This DHCP server is the official DHCP server for the local

# Network, the authoritative directive should be uncommented.

#authoritative;

# Use this to send DHCP log messages to a different log file (you also

# has to hack syslog.conf to complete the redirection).

Log-facility Local7;

# No Service would be given on this subnet, but declaring it helps the

# DHCP Server to understand the network topology.

Subnet 192.168.1.0 netmask 255.255.255.0 {

}

# This is a very basic subnet declaration.

Subnet 192.168.1.0 netmask 255.255.255.0 {//Declaration URL Address

Range 192.168.1.10 192.168.1.100; Set up an address pool

Option routers 192.168.1.1; Set the default gateway

}

# This declaration allows BOOTP clients to get dynamic addresses,

# which we don ' t really recommend.

Subnet 10.254.239.32 netmask 255.255.255.224 {

Range DYNAMIC-BOOTP 10.254.239.40 10.254.239.60;

Option Broadcast-address 10.254.239.31;

option routers rtr-239-32-1.example.org;

}

# A slightly different configuration for A internal subnet.

Subnet 10.5.5.0 netmask 255.255.255.224 {

Range 10.5.5.26 10.5.5.30;

Option Domain-name-servers ns1.internal.example.org;

Option Domain-name "internal.example.org";

Option routers 10.5.5.1;

Option Broadcast-address 10.5.5.31;

Default-lease-time 600;

Max-lease-time 7200;

}

# Hosts which require special configuration options can be listed in

# host statements. If No address is specified, the address would be

# Allocated dynamically (if possible), but the host-specific information

# would still come from the host declaration.

Host Passacaglia {

Hardware Ethernet 0:0:c0:5d:bd:95;

FileName "Vmunix.passacaglia";

Server-name "toccata.fugue.com";

}

# Fixed IP addresses can also is specified for hosts. These addresses

# should not also is listed as being available for dynamic assignment.

# Hosts for which fixed IP addresses has been specified can boot using

# BOOTP or DHCP. Hosts for which no fixed address was specified can only

# be booted with DHCP, unless there is a address range on the subnet

# to which a BOOTP client are connected which has the the DYNAMIC-BOOTP flag

# set.

Host Fantasia {

Hardware Ethernet 08:00:07:26:C0:A5;

Fixed-address fantasia.fugue.com;

}

# You can declare a class of clients and then do address allocation

# based on that. The example below shows a case where all clients

# in a certain class get addresses on the 10.17.224/24 subnet, and all

# Other clients get addresses on the 10.0.29/24 subnet.

Class "Foo" {

Match if substring (option vendor-class-identifier, 0, 4) = "SUNW";

}

Shared-network 224-29 {

Subnet 10.17.224.0 netmask 255.255.255.0 {

option routers rtr-224.example.org;

}

Subnet 10.0.29.0 netmask 255.255.255.0 {

option routers rtr-29.example.org;

}

Pool {

Allow members of "Foo";

Range 10.17.224.10 10.17.224.250;

}

Pool {

Deny members of "Foo";

Range 10.0.29.10 10.0.29.230;

}

}

Step five: Start the DHCP server

[[Email protected] ~]# service DHCPD start

Start dhcpd: [OK]

Step Six: Test

Open a windows7 and DHCP under the same network, get IP automatically

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Open/etc/dhcp/dhcpd.conf Modify the fifth row of host parameters after binding Win7 Mac to win7 specified IP

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View Win7 's network connection details

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Configuration of the Linux DHCP server (redhat6.4)