Beijing's Tsinghua University and Mozilla China have jointly developed a new Internet browser product that is specially designed for IPv6. Based on the core of Firefox, the new browser product, with the help of IPv6 tunnel technologies, enables smooth access to some IPv6, Facebook, and Google services, which are usually unstable and/or blocked in China.

Will IPv4 exhaustion reduce the original Internet to the "traditional mass-media" model, strictly separating the participants into “publishers” of content, and mere "consumers" of it? How do we ensure that all users of the Internet will always be free to directly communicate and cooperate with each other?

"If, like many people, you've started to experiment with enabling, configuring, and using, IPv6 it might not have crossed your mind to update your firewall. This could lead to surprises if you're unlucky. Read on for a simple overview. The standard userspace firewall tool upon Debian GNU/Linux is iptables.