rac dns-dhcp配置

###################################################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