hard error

[Philip Mores]

i've encountered this problem

# ./config
Your hostname is my_hostname
hard error
Sorry, I could'nt find your host's canonical name in DNS.
You will have to set up control/me yourself

what does this mean? what should I do?

TIA,
--------oooO--------Ooooo----------
Philip B. Mores
Math Dept. UP Dil. Q.C. 1101
Email: [EMAIL PROTECTED]