linux下的DNS转发

时间：2007-06-06 来源：dtlchm

好久没配过DNS了，今天又费了点劲搞定了，记下来。 1.在/etc/named.conf 的options字段增加    options {
        directory "/var/named";
        dump-file "/var/named/data/cache_dump.db";
        statistics-file "/var/named/data/named_stats.txt";
        /*
         * If there is a firewall between you and nameservers you want
         * to talk to, you might need to uncomment the query-source
         * directive below. Previous versions of BIND always asked
         * questions using port 53, but BIND 8.1 uses an unprivileged
         * port by default.
         */
         // query-source address * port 53;
        forwarders {192.168.0.1;192.168.1.22;};
};
2.写配置脚本 #!/bin/bash #打开转发
echo 1 > /proc/sys/net/ipv4/ip_forward #加载模块 /sbin/modprobe iptable_filter
/sbin/modprobe ip_tables
#/sbin/modprobe iptables_nat #刷新规则
/sbin/iptables -t nat -F #新规则 /sbin/iptables -t nat -A POSTROUTING -s 192.168.29.0/255.255.255.0 -j MASQUERADE

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