hi,
They are using ICMP echo request .. disable it in /etc/ipf.rules
Alex de Joode wrote:
> It seems that netcraft now also includes a uptime guess.
>
> For the sites I run it seems to be reasonable accurate,
> any idea how they do this ? Any ideas how to disable
> this remote uptime guessing ?
>
> http://uptime.netcraft.com/up/accuracy.html
>
> --
> Exit! Stage Left!