Posted by christophrejmc on March 10, 2002, at 17:09:28
In reply to Re: Ping Times and Tracer Route » Dr. Bob, posted by IsoM on March 10, 2002, at 16:14:34
> As for the information being public, we have so many security features & fire-walls set up that the only info that can come into our system is info we request. Anyone else trying to enter meets a "black hole" so to speak.
I imagine you're talking about local filtering (although it applies to any kind of firewall setup)... The packets still reach your system (or device), they're just rejected (ICMP sent in response) or ignored. Blocking or stopping services can (usually) prevent unauthorised access, but there's not much you can do to prevent a Denial of Service (DoS) attack. It's also not too difficult to extract quite a bit of (personal) information from what you posted. Not probable, but possible.
Just letting you know,
Christophre
poster:christophrejmc
thread:3055
URL: http://www.dr-bob.org/babble/admin/20020308/msgs/3397.html