###################################################dns配置
yum install -y bind
#配置/etc/named.conf 并覆盖 /etc/named.conf
cat /etc/named.conf > /etc/named.conf.bak
cat > /etc/named.conf << EOF
options {
directory "/var/named";
};
zone "1.168.192.IN-ADDR.ARPA" IN {
type master;
file "dns.com.jc.rdato";
};
zone "rdato.jc.com." IN {
type master;
file "rdato.jc.com.dns";
};
EOF
cp -p /var/named/named.localhost /var/named/dns.com.jc.rdato
cp -p /var/named/named.localhost /var/named/rdato.jc.com.dns
chkconfig named on
service named restart
#配置反向解析 vi /var/named/dns.com.jc.rdato 注意dns配置格式很烦人，由于是复制过来的文件，所以只修改minimum以下行的信息即可
$TTL 1D
@
IN SOA
@ rname.invalid. (
0
; serial
1D
; refresh
1H
; retry
1W
; expire
3H )
; minimum
@ IN NS cluster-gns.rdato.jc.com.
159 IN PTR cluster-gns.rdato.jc.com.
151 IN PTR rac1.rdato.jc.com.
152 IN PTR rac2.rdato.jc.com.
153 IN PTR rac3.rdato.jc.com.
154 IN PTR rac4.rdato.jc.com.
241 IN PTR rclus-scan.rdato.jc.com.
242 IN PTR rclus-scan.rdato.jc.com.
243 IN PTR rclus-scan.rdato.jc.com.
#配置反向解析 vi /var/named/rdato.jc.com.dns 注意dns配置格式很烦人，由于是复制过来的文件，所以只修改minimum以下行的信息即可
$TTL 1D
@
IN SOA
@ rname.invalid. (
0
; serial
1D
; refresh
1H
; retry
1W
; expire
3H )
; minimum
@ IN NS cluster-gns.rdato.jc.com.
cluster-gns IN A 192.168.1.159
rac1 IN A 192.168.1.151
rac2 IN A 192.168.1.152
rac3 IN A 192.168.1.153
rac4 IN A 192.168.1.154
rclus-scan IN A 192.168.1.241
rclus-scan IN A 192.168.1.242
rclus-scan IN A 192.168.1.243
#各节点配置 vi /etc/resolv.conf
options rotate
options timeout:2
options attempts:5
domain rdato.jc.com
nameserver 192.168.1.188 #dns服务器ip地址
#验证解析情况
nslookup rclus-scan.rdato.jc.com
###################################################dhcp配置
yum install -y dhcp
chkconfig dhcpd on
service dhcpd start
#编辑dhcp启动用户及组为root，不然有可以启动dhcpd服务会报错，具体错误 cat /var/log/messages
#编辑 /etc/dhcp/dhcpd.conf 添加如下内容
cat > /etc/dhcp/dhcpd.conf << EOF
ddns-update-style interim;
ignore client-updates;
subnet 192.168.1.0 netmask 255.255.255.0 {
range 192.168.1.241 192.168.1.249;
option subnet-mask 255.255.255.0;
option domain-name "rdato.jc.com";
option domain-name-servers 192.168.1.188;
}
EOF
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