FreeBSD 5.1上isc dhcpd 3.0快速安装实例

新客网 XKER.COM 2008-01-18 来源：新客网编辑整理阿土收藏本文

　　【新客网FreeBSD教程】目的：
　　为内网提供dhcp服务,每个网卡一个网段；
　　平台：
　　FreeBSD 5.1 ports
　　
　　#程序安装
　　cd /data/usr/ports/net/isc-dhcp3
　　make clean install clean
　　
　　###配置
　　#/usr/local/etc/dhcpd.conf.sample 是个很好的参考文件；
　　
　　###########
　　#注重：一下配置的多个网段，分别对应服务器上多个网卡的地址段，而不是单一网卡上的多个地址（address alias 地址别名）；
　　#假如你有某网卡设置多个地址，而配置文件中分别给这些网段设置了subnet（这是很多人所谓的”多网段dhcp地址分配“），那么启动
　　#dhcpd时，会收到如下错误,一般是发送到/var/log/messages：
　　#Jun 19 14:49:14 mail dhcpd: Interface fxp1 matches multiple shared networks
　　#
　　##############
　　
　　#vi /usr/local/etc/dhcpd.conf
　　#begin of dhcpd.conf
　　# dhcpd.conf
　　server-identifier mail.oss4e.org;
　　option domain-name "oss4e.org";
　　option domain-name-servers 202.96.134.133;
　　
　　default-lease-time 600;
　　max-lease-time 7200;
　　
　　#重要，没有这一行不能启动dhcpd。
　　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
　　# have to hack syslog.conf to complete the redirection).
　　log-facility local7;
　　
　　# Hosts which require special configuration options can be listed in
　　# host statements. If no address is specified, the address will be
　　# allocated dynamically (if possible), but the host-specific information
　　# will still come from the host declaration.
　　
　　# Fixed IP addresses can also be specified for hosts. These addresses
　　# should not also be listed as being available for dynamic assignment.
　　# Hosts for which fixed IP addresses have been specified can boot using
　　# BOOTP or DHCP. Hosts for which no fixed address is specified can only
　　# be booted with DHCP, unless there is an address range on the subnet
　　# to which a BOOTP client is connected which has the dynamic-bootp flag
　　# set.
　　#host fantasia {
　　# hardware ethernet 08:00:07:26:c0:a5;
　　# fixed-address fantasia.fugue.com;
　　#}
　　#group优先于subnet。
　　group {
　　# PXE-specific configuration directives...
　　
　　#next-server 172.16.100.249;
　　#filename "/pxelinux.0";
　　
　　# You need an entry like this for every host
　　# unless you're using dynamic addresses
　　
　　host temp {
　　hardware ethernet 00:08:c7:08:68:2b;
　　#172.16.100.189 - 172.16.100.199
　　fixed-address 172.16.100.189;
　　option host-name "temp.oss4e.org";
　　next-server 172.16.230.254;
　　filename "/pxelinux.0";
　　}
　　}
　　
　　#可以为不同的网段分配ip；
　　
　　#subnet 172.16.100.0 netmask 255.255.255.0 {
　　# server-identifier 172.16.100.245;
　　# range dynamic-bootp 172.16.100.139 172.16.100.187;
　　# option domain-name-servers 172.16.100.254;
　　# option domain-name "oss4e.org";
　　# option routers 172.16.100.254;
　　# option broadcast-address 172.16.100.255;
　　# default-lease-time 6000;
　　# max-lease-time 72000;
　　
　　# allow booting;
　　# allow bootp;
　　
　　# next-server 172.16.100.245;
　　# filename "/pxelinux.0";
　　#}
　　
　　subnet 172.16.250.0 netmask 255.255.255.0 {
　　server-identifier 172.16.250.254;
　　range dynamic-bootp 172.16.250.139 172.16.250.187;
　　option domain-name-servers 172.16.250.254;
　　option domain-name "oss4e.org";
　　option routers 172.16.250.254;
　　option broadcast-address 172.16.250.255;
　　default-lease-time 6000;
　　max-lease-time 72000;
　　
　　allow booting;
　　allow bootp;
　　
　　next-server 172.16.250.254;
　　filename "/pxelinux.0";
　　}
　　
　　###
　　subnet 172.16.230.0 netmask 255.255.255.0 {
　　server-identifier 172.16.230.254;
　　range dynamic-bootp 172.16.230.139 172.16.230.187;
　　option domain-name-servers 172.16.230.254;
　　option domain-name "oss4e.org";
　　option routers 172.16.230.254;
　　option broadcast-address 172.16.230.255;
　　default-lease-time 6000;
　　max-lease-time 72000;
　　
　　allow booting;
　　allow bootp;
　　
　　next-server 172.16.230.254;
　　filename "/pxelinux.0";
　　}
　　
　　#subnet 192.168.0.0 netmask 255.255.255.0 {
　　# server-identifier 192.168.0.254;
　　# range dynamic-bootp 192.168.0.139 192.168.0.187;
　　# option domain-name-servers 192.168.0.254;
　　# option domain-name "websofts.com";
　　# option routers 192.168.0.254;
　　# option broadcast-address 192.168.0.255;
　　# default-lease-time 6000;
　　# max-lease-time 72000;
　　
　　# #allow booting;
　　# #allow bootp;
　　
　　# #next-server 192.168.0.254;
　　# #filename "/pxelinux.0";
　　#}
　　
　　#end of dhcpd.conf
　　
　　cp -p /usr/local/etc/rc.d/isc-dhcpd.sh.sample /usr/local/etc/rc.d/isc-dhcpd.sh
　　###end

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