Our own physical state is pretty critical too. Spending several hours per day for two or three weeks sat on the bike on often challenging roads, can be exhausting. Maybe less so for people who already spend a couple of hours everyday on their bike commuting, but I am a mere recreational user these days.

We're doing another Balkan trip. This time we're doing a different route and visiting a few new countries.

We have moved and taken our bikes with us. We are now living in Baden-Württemberg, Germany where we are a couple of hours from the Alps and have the Black Forest on our doorstep.

DNS client configuration can be handled by the standard Router Advertisement Daemon (radvd) – apt-get install radvd Edit /etc/radvd.conf on your Linux Router and insert the following at the end of the file to use Google’s DNS Caching server: RDNS 2001:4860:4860::8888{}; On your Linux clients install rdnssd. To automatically insert the advertised IPv6 DNS servers

Crossing over one of Europe's great rivers, the Danube, we enter into Romania just south of Bucharest. The Danube runs along the border between Bulgaria and Romania, and we will revisit this river further upstream when we return to Budapest.

Crossing over from Macedonia at 1,500m altitude, we return to the European Union and into Bulgaria one of the newest members. Our initial research indicated that even motorbikes require vignettes to use any major road, however the customs officials just wave us through.

Over the border from Kosovo and its our first chance to use our green cards, saving us a reported €50 each. Ohrid (Охрид) in the south-west corner of the country, is our destination.

IP packet drop can be easily emulated on any section of network using a Linux Bridge and a single iptables command:
iptables -t mangle -A FORWARD -m statistic --mode random --probability 0.01 -j DROP
(where probability is expressed as a value between 0 and 1)