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How I am searching:<br>
Asking b.root-servers.net for 203.93.17.218.in-addr.arpa PTR record: <br>b.root-servers.net says to go to ns4.apnic.net. (zone: 218.in-addr.arpa.)<br>
Asking ns4.apnic.net. for 203.93.17.218.in-addr.arpa PTR record: <br>ns4.apnic.net [202.12.31.140] says to go to dns.guangzhou.gd.cn. (zone: 17.218.in-addr.arpa.)<br>
Asking dns.guangzhou.gd.cn. for 203.93.17.218.in-addr.arpa PTR record: Reports that no PTR records exist [from 202.96.128.68].<br>
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但是我发现好像并不是因为我的服务器的ip没有作,是因为dns.guangzhou.gd.cn没有作。<br>
我们的服务器我已经作了。