Ask the DNS questions under RHELAS4

Ask the DNS questions in RHELAS4-Linux Enterprise Application-Linux server application information. The following is a detailed description. My system is Redhat linux as4. Using the DNS built with bind, I wrote two regions and their reverse regions, example.com and kiesz.com. I will not write the reverse region.
If the error occurs, kiesz.com cannot be parsed. If you use nslookup to test, the message "cannot find kiesz.com" can't find kiesz.com: no answer

Example.com can be parsed normally

My configuration file named. conf content
// 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 ;};
};