Disable conntrack for VE0 by default

IP conntrack functionality has some negative impact on venet
performance (uo to about 10%), so they better be disabled
by default.

Add the relevant scriptery to .spec file, making sure we
1. do not overwrite any modifications
2. warning a user loud and clear what is going on

Wiki page (https://openvz.org/NAT) fixed accordingly.

https://bugzilla.openvz.org/2755

Reported-by: Sean Fulton <sean@gcnpublishing.com>
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
1 file changed