how to let other people know my hostname through IP address

[Greg R. Broderick]

"dxuranus" <dxuranus at gmail.com> wrote in
news:1153907460.945016.284140 at s13g2000cwa.googlegroups.com: 

> 
> Chris Uppal wrote:
>> dxuranus wrote:
>>
>> > i have a public hostname "a" (not my machine name)on internet and
>> > my ip is xx.xx.xx.xx;
>> >   the problem is other people can get my ip through hostname.but
>> >   if he try to get my hostname through ip he always failed. 
>>
>> Sounds as if something's screwy with reverse DNS lookup.  That
>> /might/ be an error, or more likely is just a result of how your
>> ISP/'DNS/etc works. This isn't really Java-related at all.  Talk to
>> whoever provides your DNS entry (whoever it is that provides the
>> lookup from the domain name, xxx.yyy.zzz, to your numeric IP
>> address -- which is probably whoever you paid to register your 
>> domain name). 
>>
>>     -- chris
> ye that's right it's about dns reverse.i think it can be done by
> program (because qmail can)
> .but i do't know how?

You need to:

1.  find out what entity handles reverse-DNS for your IP address.  
Normally this would be your Internet Service Provider, but can be 
determined conclusively with the command:

dig -x <your IP address> NS

2.  contact this entity and request that they modify their reverse-DNS 
data to return the host name that you desire.

[followups set appropriately to comp.protocols.dns.bind]

Cheers
GRB