How to install Broker on Linux box?

Hi Everyone,

While I was installing webMethods7.1 on Red Hat,I got following error when it was starting broker service on my machine.

[COLOR=Red] An error occured while creating the default broker.[/color]

[SIZE=4][B]Unable to find host ‘localhost’ on the network.

Can anyone please suggess how to resolve this type of error?

Thanks in Advance,
Istiyak Vasiwala