tip:

[John G Heim]

I just discovered that the syslinux-utils package has a tool called 
gethostip that displays the PXE file name for a host name. So for 
example, if you want to figure out the PXE config file name for a 
workstation named "nitschke", you'd say, "gethostip nitschke". Sample 
output:

# gethostip nitschke
nitschke.example.com 192.168.0.66 C0A80042
I know fai-chboot also determines the pxelinux.cfg file name but I would 
imagine that others do what I do -- once you get one working config 
file, copy it for the other machines you want to do installs on.