Firefox 5.0 ready for download...

Just to clarify: It is ready for download but Mozilla has not released 5.0 yet.
But you can get it here (Win, linux, mac).
After startup you get the following page:

But if you query the version via Help-> About Firefox, you will get:

And the good news, most of the plugins work (for me at least ;-)


Review at amazon: IPv6 Security

World IPv6 day is now one week ago and still many participants announce their websites with AAAA records.
But what does this mean? -> IPv6 is already around us - and it is time (ok, it is a little bit late, but hopefully not too late ;-) to dive deep...

One book which you dive through is:

Here some phrases of the summary:
IPv6 Security Protection measures for the next Internet Protocol As the
world's networks migrate to the IPv6 protocol, networking professionals
need a clearer understanding of the security risks, threats, and
challenges this transition presents.

In IPv6 Security, two of the
world's leading Internet security practitioners review each potential
security issue introduced by IPv6 networking and present today's best

IPv6 Security offers guidance for avoiding security problems
prior to widespread IPv6 deployment.

The book covers every component of
today's networks, identifying specific security deficiencies that occur
within IPv6 environments and demonstrating how to combat them.

authors describe best practices for identifying and resolving weaknesses
as you maintain a dual stack network.

Then they describe the security
mechanisms you need to implement as you migrate to an IPv6-only network.
This book is one of the best IPv6 books on the market. In contrast to IPv6 for Enterprise Networks every topic is well introduced and then explained with really good figures and commented configurations. Even if you are just looking for the commands on different operating systems: chapter 7 is your candidate - Windows, Linux, BSD, Solaris... If you want to build a firewall: chapter 5 contains a list of subnets you should block and what else is important for ipv6 firewalls...
You are interested in transition mechanisms? Read chapter 10 (for the next years this will be an important chapter...)

If you are interested, take a look at my review at amazon.de (like all my reviews: written in german ;-).


World IPv6 Day: The Future is forever!

The Internet Society has announced the world IPv6 day:

On 8 June, 2011, Google, Facebook, Yahoo!, Akamai and Limelight Networks will be amongst some of the major organisations
that will offer their content over IPv6 for a 24-hour “test flight”.
The goal of the Test Flight Day is to motivate organizations across the
industry – Internet service providers, hardware makers, operating system
vendors and web companies – to prepare their services for IPv6 to
ensure a successful transition as IPv4 addresses run out.
My company has decided to take part in this initiative. The AAAA record is announced, so www.gip.com is translated into 2002:d58b:8be3:2000::2
$ dig www.gip.com AAAA +short
If you have native ipv6 connectivity or if you are using 6to4 or other transition mechanism:
You can get our website via

If you are using IPv4 only, than you should expirience nothing...
There a many other companies, which will anounce their domain with AAAA-records tomorrow. Up to now 65% of the participating companies are already reachable via IPv6 (for online chart click the image).

Google publishes a nice statistic, which shows the IPv6 traffic to their site:

Tomorrow this graph should reach 1%? 10%? 50%? Let's wait for the results....