Slave server and host.nntp

[OlivierS]

First does anybody knows how to set up a slave news server. Which would
allow to synchronize it with another server. After that the slave server
could become a new independant server.
Do you now if it exists another method
I would like to use this method to change the news server which is actually
too much requested. I would like to have a machine which is only dedicated
to news.
Finally what has becomes the file host.nntp which is referenced in the faqs
? it doesnt exist in inn2.2.2 ?!!!