On Sep 19, 7:45 am, "Auggie" <Imperial.Pal...@Rome.It> wrote:
> "Jason" <jwcarl...@gmail.com> wrote in message

> If they have a dynamic IP I wouldn't worry about that and still block
> the IP. Most dynamic IPs are usually used by the same person for a week or
> two before they renew the IP (and even then they usually get the same the IP
> address)... but even if thats the case you don't have to ban the IP for all
> eternity: just block it for 1 or 2 weeks, maybe a month. If the person is
> a malicious user then odds are pretty good they will just try a couple of
> times and after a few days just move on.

I think AOL still do that weird IP proxy thing; while YOU may have one
IP address for a short time, they have 100s of proxies with 1000s of
IP addresses. As an AOL user, requesting one page may result in many
IP addresses (at the same time) being used to fetch the content to
you. For example, the page is requested under one IP, the header
graphic under another, the scripts from another... Makes it very hard
to block some users.

The only semi-reliable way is via ; this is why some large
commercial sites insist on them. No = no tracking = no entry to
our site. We do this on band web sites specifically so we can block
abusive users. It's a shame we need to do it at all, but we tried IP
blocking and it just doesn't work on a busy site.