debian-private, master.debian.org, what's all that?

[Fernando Alegre <fernando@mars.superlink.net>]

On Mon, 29 Jan 1996, Matthew Bailey wrote:

[...]

> what is master.debian.org???

And on Mon, 29 Jan 1996, Bruce Perens replied:

> Oh darn. Somehow Matt dropped off of debian-private and missed the discussion
> on the developer-private system.
> 

So, could you explain all this?

1) What is master.debian.org?
2) What is debian-private?
3) What is this "developer-private system" about?
4) How is all that related to the Debian project?

Thank you,
	Fernando Alegre
	alegre@mars.superlink.net