[CentOS] how to let other people know my hostname through IP address

[Rafael Azenha Aquini]

Em Qua, 2006-07-26 às 10:00 +0800, dxuranus escreveu:
>   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.
>   the case above is in my program (i make it) ,what can i do for this?

Do you have a zone reversa configured of the DNS? 
Perhaps lacks this to you.

if I said nastiness, please: delete this mail and forgets… 

[]'s