On most Linux distributions, the right hand part of the IPv6 address is based on the computer's MAC address. As your MAC address is fixed and (in theory) worldwide unique, your computer can be traced anywhere it goes online. While cookies track you all the time, stil having another tracker around is not desired.
The "IPv6 Privacy Extensions" fix this by giving you a regularly changed random IPv6 address.
To enable IPv6 Privacy Extensions, edit the file /etc/sysctl.conf and add these lines:
net.ipv6.conf.wlan0.use_tempaddr = 2 net.ipv6.conf.eth0.use_tempaddr = 2 net.ipv6.conf.all.use_tempaddr = 2 net.ipv6.conf.default.use_tempaddr = 2
Still, whenever you go online on a browser that carries your cookies/flash cookies/zombie cookies/supercookies, you may be identified. But at least, it's a little harder to track you.© GeekLabInfo IPv6 privacy is a post from GeekLab.info. You are free to copy materials from GeekLab.info, but you are required to link back to http://www.geeklab.info