Interesting article. How do you disable IPv6?

How to disable IPv6 depends on what software you have installed.  If your network is controlled by NetworkManager then you can go into that tool's preferences and disable it.  You can go lower-level and edit config files directly, but that's probably not the best solution if you're not familiar with it.

I would not disable IPv6 myself because I reach some sites and other internet resources through IPv6.  IPv6 is still not used as much as IPv4, so some people can get away with disabling it for a while until the uptake is larger in the future.  Some ISPs have not even implemented IPv6 on their networks yet (shame -- SHAME!! ).

An experiment would be to disable IPv6, go about your normal computing and see if you have trouble accessing web sites and services.  If you suddenly can't get into your favorite site or internet service, try turning IPv6 back on and see if that helps.

The D in Systemd stands for 'Dammmmit!'

A nasty DHCPv6 packet can pwn a vulnerable Linux box
Hole opens up remote-code execution to miscreants – or a crash, if you're lucky.

https://www.theregister.co.uk/2018/10/2 … hcpv6_rce/