修改如下：
[root@mybind named]# vim 192.168.250.arpa[root@mybind named]# vim 192.168.250.arpa$TTL 1D@ IN SOA haopython.com. root.haopython.com. (0; serial1D; refresh1H; retry1W; expire3H) ; minimum NS ns.haopython.com.ns A 192.168.250.20010 PTR ns.haopython.com.10 PTR www.haopython.com.
[root@mybind named]# vim 192.168.250.arpa
$TTL 1D
@ IN SOA haopython.com. root.haopython.com. (
0; serial
1D; refresh
1H; retry
1W; expire
3H) ; minimum
NS ns.haopython.com.
ns A 192.168.250.200
10 PTR ns.haopython.com.
10 PTR www.haopython.com.
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