请教RHEL AS4下的DNS问题

我的系统是Redhat linux as4 ，用bind搭建的DNS，写了两个区域以及其反向区域，分别是example.com和kiesz.com，反向区域就不写出来了。
出现的故障是kiesz.com不能解析，用nslookup测试提示信息是“不能找到kiesz.com”can't find kiesz.com: no answer

example.com能够正常解析

我的配置文件named.conf内容
// Default named.conf generated by install of bind-9.2.4-16.EL4
options {
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
version "4.9.11";
};
include "/etc/rndc.key";


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

zone "example.com" {
type master;
file "example.com.zone";
allow-transfer {
192.168.1.177;
192.168.1.17;};
};

zone "16.168.192.in-add.arpa" {
type master;
file "192.168.16.arpa";
allow-transfer {
192.168.1.177;
192.168.1.17;};
};

zone "kiesz.com" {
type master;
file "kiesz.com.zone";
allow-transfer { none; };
};