REVERSE DNS - How To

[twin_mendoza]

im having problem with my DNS can you please guide or give some tutorial about *REVERSE DNS*  

when i do this with my box (red hat 9)

>host my-site.com
>my-site.com address 123.456.789.098

but when i do this

>host 123.456.789.098
>Host .in-addr.arpa not found: 3(NXDOMAIN)

can anyone give some tips about my problem...

[aktiwari4u]

for configuring reverse DNS u may get some information from these sites

siliconvalleyccie.com/linux-hn/dns-static.htm

weberdev.com/Manuals/rhl-cg-en-9/s1-bindconf-reverse-master-zone.html

redhat.activeventure.com/9/customizationguide/s1-bindconf-reverse-master-zone.html

siliconvalleyccie.com/linux-hn/dns-static.htm

any ways i think it needs some study