> I thought about portsentry as well, but found it's not a good idea to
> block ports based on ip-addresses.

<snip>

> Please correct me, if I understood portsentry wrong; I'm willing to
> add it as soon as possible, if it's handling dynamic addresses
> without problems.

Port-sentry and similar atomatic firewall rule generators can usually be
pretty easily converted into denial-of-service tools.  Simply spew a bunch
of packets with forged IP's at something like port-sentry, and a malicious
individual can easily prevent you from accessing key portions of the
internet.  Also, your excellent points about users with changing IP's apply
equally to virtually all dial-up users, who still make up the vast portion
of end-users on the 'net.

Charles Steinkuehler
http://lrp.steinkuehler.net
http://c0wz.steinkuehler.net (lrp.c0wz.com mirror)


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