rDNS

rDNS - Reverse DNS lookup (rDNS) is a process to determine the hostname or host associated with a given IP address or host address. (wikipedia).

Any want of you facing the problem, unable to lookup your rDNS for your DNS server?.I also got this problems with my rDNS lookup. After a few day seek for the solutions how to make sure the rDNS work properly, finally i found the solution. Any local/public IP from Telekom Malaysia (TM), must ask from their site to enable the rDNS.By default they not allowed the rDNS if we are not request it.To request it we can email : dnsteam@tm.net.my / dndadm@tmnet.com.y or lock report to iCOMS.After do want of this method, finally my rDNS work properly. So far their respond better.