$ sudo apt-get update
$ sudo apt-get install ltsp-cluster-pxeconfig 

ltsp-cluster-pxeconfig is installed in your system.

Make ensure the ltsp-cluster-pxeconfig package were installed using the commands given below,

$ sudo dpkg-query -l | grep ltsp-cluster-pxeconfig *

You will get with ltsp-cluster-pxeconfig package name, version, architecture and description in a table

ltsp-cluster-pxeconfig package basic information: