133 lines
4.1 KiB
Plaintext
133 lines
4.1 KiB
Plaintext
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//Install dhcp server
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[root@localhost ~]#yum install dhcp
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//We shoule copy /usr/share/doc/dhcp-4.2.0/dhcpd.conf.sample to /etc/dhcp/dhcpd.conf
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//and modifiy /etc/dhcp/dhcpd.conf as the following
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[root@localhost ~]#cat /etc/dhcp/dhcpd.conf
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# dhcpd.conf
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#
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# Sample configuration file for ISC dhcpd
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#
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# option definitions common to all supported networks...
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option domain-name "example.org";
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option domain-name-servers ns1.example.org, ns2.example.org;
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default-lease-time 600;
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max-lease-time 7200;
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# Use this to enble / disable dynamic dns updates globally.
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#ddns-update-style none;
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# If this DHCP server is the official DHCP server for the local
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# network, the authoritative directive should be uncommented.
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#authoritative;
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# Use this to send dhcp log messages to a different log file (you also
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# have to hack syslog.conf to complete the redirection).
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log-facility local7;
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# No service will be given on this subnet, but declaring it helps the
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# DHCP server to understand the network topology.
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subnet 10.152.187.0 netmask 255.255.255.0 {
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}
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# This is a very basic subnet declaration.
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subnet 10.254.239.0 netmask 255.255.255.224 {
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range 10.254.239.10 10.254.239.20;
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option routers rtr-239-0-1.example.org, rtr-239-0-2.example.org;
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}
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# This declaration allows BOOTP clients to get dynamic addresses,
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# which we don't really recommend.
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subnet 10.254.239.32 netmask 255.255.255.224 {
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range dynamic-bootp 10.254.239.40 10.254.239.60;
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option broadcast-address 10.254.239.31;
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option routers rtr-239-32-1.example.org;
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}
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# A slightly different configuration for an internal subnet.
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subnet 192.168.1.0 netmask 255.255.255.0 {
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range 192.168.1.30 192.168.1.150;
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option domain-name-servers 192.168.1.254;
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option domain-name "internal.org";
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option routers 192.168.1.254;
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option broadcast-address 192.168.1.255;
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default-lease-time 6000;
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max-lease-time 7200;
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}
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subnet 172.21.69.0 netmask 255.255.255.0 {
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}
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# Hosts which require special configuration options can be listed in
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# host statements. If no address is specified, the address will be
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# allocated dynamically (if possible), but the host-specific information
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# will still come from the host declaration.
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host passacaglia {
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hardware ethernet 0:0:c0:5d:bd:95;
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filename "vmunix.passacaglia";
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server-name "toccata.fugue.com";
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}
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# Fixed IP addresses can also be specified for hosts. These addresses
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# should not also be listed as being available for dynamic assignment.
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# Hosts for which fixed IP addresses have been specified can boot using
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# BOOTP or DHCP. Hosts for which no fixed address is specified can only
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# be booted with DHCP, unless there is an address range on the subnet
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# to which a BOOTP client is connected which has the dynamic-bootp flag
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# set.
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host fantasia {
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hardware ethernet 08:00:07:26:c0:a5;
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fixed-address fantasia.fugue.com;
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}
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# You can declare a class of clients and then do address allocation
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# based on that. The example below shows a case where all clients
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# in a certain class get addresses on the 10.17.224/24 subnet, and all
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# other clients get addresses on the 10.0.29/24 subnet.
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class "foo" {
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match if substring (option vendor-class-identifier, 0, 4) = "SUNW";
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}
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shared-network 224-29 {
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subnet 10.17.224.0 netmask 255.255.255.0 {
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option routers rtr-224.example.org;
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}
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subnet 10.0.29.0 netmask 255.255.255.0 {
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option routers rtr-29.example.org;
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}
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pool {
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allow members of "foo";
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range 10.17.224.10 10.17.224.250;
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}
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pool {
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deny members of "foo";
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range 10.0.29.10 10.0.29.230;
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}
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}
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[root@localhost ~]#
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//Depends on the above setting, wlan interface IP would be 192.168.1.254
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[root@localhost ~]#ifconfig wlan14 192.168.1.254
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//Set only one interface as dhcp server
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[root@localhost ~]#cat /etc/sysconfig/dhcpd
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# Command line options here
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DHCPDARGS=wlan0
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//If /var/lib/dhcpd/dhcpd.leases doesn't exist,
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//we should establish it
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//This file is used to record clients information.
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[root@localhost ~]#touch /var/lib/dhcpd/dhcpd.leases
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//Execute
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[root@localhost ~]#/etc/rc.d/init.d/dhcpd start
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