_* gbrands.de *_

Here you will find a collection of small adjustments for IPv6.

IPv6 does not really make sense in private networks, as it might be an unintended exposure of the hostsystems within the private net. Also site-local addresses are deprecated since 2004.
So, all in all, using IPv6 in private nets would result in a high workload of firewalling and ruling the private net.

And the collection has just begun, so the first thing we do, is to disable IPv6 persistent on Debian based systems