请助！我的dns出现问题！

liuf927

我用/usr/sbin/named -g  显示如下内容：
Jul 07 16:45:20.134 starting BIND 9.2.1 -g
Jul 07 16:45:20.150 using 1 CPU
Jul 07 16:45:20.156 loading configuration from '/etc/named.conf'
Jul 07 16:45:20.206 no IPv6 interfaces found
Jul 07 16:45:20.207 listening on IPv4 interface lo, 127.0.0.1#53
Jul 07 16:45:20.208 binding TCP socket: address in use
Jul 07 16:45:20.219 listening on IPv4 interface eth0, 172.18.80.80#53
Jul 07 16:45:20.219 binding TCP socket: address in use
Jul 07 16:45:20.223 /etc/named.conf:19: couldn't add command channel 127.0.0.1#953: address in use
Jul 07 16:45:20.250 ignoring config file logging statement due to -g option
Jul 07 16:45:20.251 couldn't open pid file '/var/run/named/named.pid': File exists
Jul 07 16:45:20.251 exiting (due to early fatal error)
它说我有至命的错误!不知道错在哪里！
我可以反向解析，不能正向解析。说找不到服务器在！请大家帮帮我吧！谢谢！！

liuf927

zone "." IN {
        type hint;
        file "named.ca";
};

zone "liuf927.com" IN {
        type master;
        file "localhost.zone";
        allow-update { none; };
};
zone "80.18.172.in-addr.arpa" IN {
        type master;
        file "named.local";
        allow-update { none; };
};

tom_xx_hu@yahoo

此前的named 没有正常结束。找到named进程，用kill 或kill －9 杀掉，删除/var/run/named/named.pid，再重启named。