租約數據庫文件是/var/lib/dhcpd/dhcpd.leases,
裏面沒什麼,
see /usr/share/doc/dhcp*/dhcpd.conf.sample 可以將這個文件覆蓋現在的文件
cp:是否覆蓋“/etc/dhcpd.conf”? y
ignore client-updates; #忽略客戶端更新
option routers 192.168.0.1; #網關地址
option subnet-mask 255.255.255.0; #子網掩碼:默認子網掩碼
option domain-name "domain.org"; #DNS後綴
option domain-name-servers 192.168.1.1; #DNS服務器地址
# option ntp-servers 192.168.1.1; #NTP服務器
# option netbios-name-servers 192.168.1.1;
# --- Selects point-to-point node (default is hybrid). Don't change this unless
# -- you understand Netbios very well
# option netbios-node-type 2;
default-lease-time 21600; #默認IP租約時間,單位秒
max-lease-time 43200; #客戶端IP租約時間的最大值,單位秒
host ns {
next-server marvin.redhat.com;
hardware ethernet 12:34:56:78:AB:CD;
fixed-address 207.175.42.254;
}
}
可以修改爲
ignore client-updates;
option subnet-mask 255.255.255.0;
option domain-name-servers 192.168.2.1;
option domain-name "haha.com";
default-lease-time 21600;
max-lease-time 43200;
}
/etc/init.d/dhcpd start
Dec 23 19:57:33 mailsvr1 dhcpd: Internet Systems Consortium DHCP Server V3.0.5-RedHat
Dec 23 19:57:33 mailsvr1 dhcpd: Copyright 2004-2006 Internet Systems Consortium.
Dec 23 19:57:33 mailsvr1 dhcpd: All rights reserved.
Dec 23 19:57:33 mailsvr1 dhcpd: For info, please visit [url]http://www.isc.org/sw/dhcp/[/url]
Dec 23 19:57:33 mailsvr1 dhcpd: Wrote 1 leases to leases file.
Dec 23 19:57:33 mailsvr1 dhcpd: Listening . LPF/eth0/00:0c:29:16:82:ba/192.168.2/24
Dec 23 19:57:33 mailsvr1 dhcpd: Sending . LPF/eth0/00:0c:29:16:82:ba/192.168.2/24
Dec 23 19:57:33 mailsvr1 dhcpd: Sending . Socket/fallback/fallback-net