Dobrica Pavlinušić's random unstructured stuff

IP over DNS: Revision 4

I guess that you "already know everything about this"<http://thomer.com/howtos/nstx.html>. However, here is a list of changes specific to me:

* I wanted everything to be automatic: just `/etc/init.d/nstxcd start` and I *should* be ready to go
* I use dnsmasq for local DNS proxy (with cacheing) so my configuration use `/etc/resolv.conf-upstream`

^ Server setup

More or less standard, expect for fact that my DNS server has multiple IP addresses and I *do* want to run `bind` on some of them. So I added something like:

.pre
# /etc/bind/named.conf
options {
listen-on {
1.2.3.4;
}
}
.pre

Configuring `nstx` is straightforward:

.pre
# /etc/default/nstx
NSTX_DOMAIN="tunnel.example.com"
start_nstxd=yes
ifup_tun=tun0
NSTX_IFACE="1.2.3.4"
.pre