Shell脚本——中继DHCP服务器自动部署

详细说明参照：

（四）跟我一起玩Linux网络服务：DHCP服务配置之中继代理

vm1的脚本是：

 #! /bin/bash

 HIPSEG="10.10.10"
 SIPSEG="192.168.128"
 HRoute="10.10.10.10"
 SRoute="192.168.128.8"
 DN="ns.gr.org" 

 cat  > /etc/dhcpd.conf << +END+
 ddns-update-style interim;
 ignore client-updates;

 subnet $HIPSEG. netmask 255.255.255.0 {
         option routers                  $HRoute;
         option subnet-mask              255.255.255.0;
         option domain-name              "$DN";
         option domain-name-servers      $HRoute;
         option time-offset              ;
         range dynamic-bootp $HIPSEG. $HIPSEG.;
         default-lease-time ;
         max-lease-time ;
 }
 subnet $SIPSEG. netmask 255.255.255.0 {
         option routers                  $SRoute;
         option subnet-mask              255.255.255.0;
         option domain-name              "$DN";
         option domain-name-servers      $HRoute;
         option time-offset              ;
         range dynamic-bootp $SIPSEG. $SIPSEG.;
         default-lease-time ;
         max-lease-time ;
 }
 +END+
 service dhcpd restart
 ps -ax | grep dhcpd

 route add -net $SIPSEG./ gw $HRoute

vm2的脚本是：

 #! /bin/bash
 IP="10.10.10"
 RIP="10.10.10"
 DN="gr.org"
 Name="10.10.10.10"
 cat >> /etc/named.conf << +END+
 zone "$DN." IN {
         type master;
         file "gr.org.db";
 };
 zone "$RIP.in-addr.arpa" IN{
         type master;
         file "$IP.db";
 };
 +END+
 cat > /var/named/$DN.db <<+END+
 \$TTL
 @    IN  SOA    ns.$DN.  root.$DN. (
          6H  30M  1W  15M)
      IN  NS     ns.$DN.
      IN  MX     mail.$DN.
 bbs  IN  CNAME  www.$DN.
 ns   IN  A      $IP.
 www  IN  A      $IP.
 mail IN  A      $IP.
 +END+
 cat > /var/named/$IP.db <<+END+
 \$TTL
 @       IN      SOA     ns.$DN.       root.$DN.(
                   6H  30M  1W  15M)
         IN      NS      ns.$DN.
       IN      PTR     ns.$DN.
       IN      PTR     www.$DN.
       IN      PTR     mail.$DN.
 +END+
 cat > /etc/resolv.conf <<+END+
 nameserver $Name
 +END+

 service named start