DDNS
假设server11【192.168.0.111】为dhcp服务器：
动态获取IP：
[root@server11 ~]# yum install dhcp -y
[root@server11 ~]# vim /etc/dhcpd/dhcpd.conf
option domain-name “yyn.org”;
option domain-name-servers 192.168.0.111;
default-lease-time 600;
max-lease-time 7200;
subnet 192.168.0.0 netmask 255.255.255.0 {
range 192.168.0.135 192.168.0.145;。。。。。。地址池
option routers 192.168.0.111;
}
客户端【host11】：拔掉网线，以server11作为dhcp服务器
ifcfg-eth0文件改为dhcp获取方式
[root@host11 ~]# /etc/init.d/network restart
[root@host11 ~]# ifconfig
得到上面地址池中的IP
动态绑定IP
[root@server11 ~]# vim /etc/dhcpd/dhcpd.conf
host client1 {
hardware ethernet 52:54:00:21:3d:95; 。。。。host11的MAC地址
fixed-address 192.168.0.90; 。。。。。。。。host11上动态绑定的IP
}
[root@server11 ~]# /etc/init.ddhcpd restart
[root@host11 ~]# /etc/init.d/network restart
[root@host11 ~]# ifconfig
得到上面IP: 192.168.0.90
DDNS解析：
[root@server11 ~] # yum install -y bind bind-chroot
[root@server11 ~] # vim /etc/named.conf
key "dns" {
algorithm hmac-md5;
secret "+Gt3V1GrSFSQKiE+dnA6RQ==";
};
zone "yyn.org" IN {
type master;
file "yyn.org.zone";
allow-update { key dns; };
};
[root@server11 ~]# /etc/init.d/named restart
[root@server11 ~]# vim /etc/dhcp/dhcpd.conf
key "dns" {
algorithm hmac-md5;
secret "+Gt3V1GrSFSQKiE+dnA6RQ==";
};
zone yyn.org. {
primary 127.0.0.1;
key dns;
};
[root@server11 ~]# /etc/init.d/dhcpd restart
如果是linux客户机，需要在客户机上做如下配置：
[root@server11 ~]# vim /etc/dhcp/dhclient.conf
ddns-update-style interim;
[root@host11 ~]# vim /etc/dhcp/dhclient.conf
send fqdn.fqdn "slave.Dillon.org.";
send fqdn.encoded on;
send fqdn.server-update off;
[root@host11 ~]# rm -f /etc/dhcp/dhclient-eth0.conf
如果客户机是windows主机，则应该
[root@server12 ~]# vim /etc/dhcp/dhclient.conf
ddns-update-style ad-hoc;