Many telcos filter certain frequencies (which can be used to manipulate switches still using

in-band signalling) although they belong to the speech bandwidth. Is that censorship?

Defining what you should be able and what you shouldn't be able to do with your connection

is not as easy as it might seem. Adding an open relay to one of the public anti-SPAM databases

(such as MAPS RBL or ORBS) might be a better solution in this case, but how about filtering

outgoing traffic containing forged source IP addresses? Some people might consider this

censorship while others (just like me) are quite comfortable with the fact that this stops security

threats such as smurf attacks.

Unfortunately we have to realize the fact that the Internet is changing. It is no longer a network

entirely consisting of people enjoying the advantages of a world-wide IP network - abuse has

become a problem that can't be ignored. I doubt that anyone of you still has guest accounts

on all of his systems in order to allow others to learn from his work.

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Link to this comment: http://www.securityfocus.com/comments/articles/173/4991#4991