DNS's problem

whlxy

My OS is Linux 8.0.I have installed http and DNS service on it.Both of these services work properly.Because nslookupo and http://www.example.com work properly on the server.

I have a windows98 client whose DNS server is pointed to the LInux server.when I ping the linux and windows 98 host name on the win98 client.The returned ip ARE THE SAME(the windows host's ip).when I ping a non-exist ip, the returned information is "unknow host...."
Here is my dns file,can you help me out?
Here is my forward zone file.
$TTL 86400
@ IN SOA hahaha.airport.com. whlxy.airport.com. (
                        2 ; serial
                        28800 ; refresh
                        7200 ; retry
                        604800 ; expire
                        86400 ; ttl
                        );


@ IN NS hahaha.airport.com.

        IN MX 10 hahaha
hahaha IN A 172.20.15.203
haha IN A 172.20.15.181
mail CNAME hahaha.airport.com.

Here is my reverse file zone.


$TTL 86400
@ IN SOA hahaha.airport.com. whlxy.airport.com. (
                        1 ; serial
                        28800 ; refresh
                        7200 ; retry
                        604800 ; expire
                        86400 ; ttk
                        )


@ IN NS hahaha.airport.com.

203 IN PTR hahaha.airport.com.
181 IN PTR haha.airport.com.





I can't input Chinese Charactor in Linux.