Preparation:
Thereverse DNS entry for an IP is found by reversing the IP, adding it to "in-addr.arpa", and looking up the PTR record.
So, the reverse DNS entry for 218.71.169.205 is found by looking up the PTR record for
205.169.71.218.in-addr.arpa.
All DNS requests start by asking the root servers, and they let us know what to do next.
See How Reverse DNS Lookups Work for more information.
How I am searching:
Asking g.root-servers.net for 205.169.71.218.in-addr.arpa PTR record:
g.root-servers.net says to go to tinnie.arin.net. (zone: 218.in-addr.arpa.)
Asking tinnie.arin.net. for 205.169.71.218.in-addr.arpa PTR record:
tinnie.arin.net says to go to ns.zjnbptt.net.cn. (zone: 71.218.in-addr.arpa.)
Asking ns.zjnbptt.net.cn. for 205.169.71.218.in-addr.arpa PTR record:Reports 205.169.71.218.broad.nb.zj.dynamic.163data.com.cn.
Answer:
218.71.169.205 PTR record: 205.169.71.218.broad.nb.zj.dynamic.163data.com.cn.
218.71.169.205 PTR record: mail.nst.com.cn.
Details:
You have more than one PTR record for 218.71.169.205.This is legal, but most programs will only use
the first PTR record listed (which may vary).Best practice is to have just one PTR record.
To see the reverse DNS traversal, to make sure that all DNS servers are reporting the correct results, you can Click Here.
这个上面的意思 应该是说 我的IP已经做了反解吧！
请帮我看下
谢谢！！！！ OK是做了,虽然名这有点怪 205.169.71.218.broad.nb.zj.dynamic.163data.com.cn 这是我在我公司的邮件服务器上弄的，怎么和网上那些资料里显示的不一样啊
请问我的这个MX记录对吗
> set querytype=mx
> mail.nst.com.cn
Server:nbdns3.nbptt.zj.cn
Address:202.96.104.17
nst.com.cn
primary name server = (root)
responsible mail addr = hostmaster.nameserver
serial= 8
refresh = 28800 (8 hours)
retry = 7200 (2 hours)
expire= 604800 (7 days)
default TTL = 5 (5 secs)
>
[ 本帖最后由 wwscom 于 2006-12-30 16:45 编辑 ] Sina的信件有时能发过去 有时又发不过去 ，是不是很怪啊:( 俺都习惯了
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