[GTALUG] Ubuntu -- Disabling Ping

[James Knott]

On 08/30/2018 11:45 AM, Scott Allen via talk wrote:
> But what if you *don't* know someone lives at 1234 Bloor St. (and most
> of the residences on Bloor St. are vacant)?

That doesn't stop many burglars or squatters.

> If you knock on one of the doors (ping), you
> may get an answer, telling you that breaking into that residence at a
> later time may be of some value, thus worth more effort.

There are other ways to determine if there's a computer or router
there.  For example traceroute will simply time out if the device
doesn't respond, but there is a route to it.  If there is no route to
it, you get a different error message.  That difference will tell you
whether there's likely something at that address.