> A port scanner is software that can typically be set to analyze a range of
> ports on a given IP address or range of addresses. I used to use one
fairly
> frequently on an enterprise network I administered, looking for things
like
> unauthorized web & FTP servers, etc. A knowledgeable individual could use
> one to scan for open ports on a given network address, to help find
> vulnerabilities they can exploit to gain access.
There some good solutions to block a IP after (or while) a Port Scan ( there
countless Linux Apps for this ).
This is best way to block the "Hobby-Scanner" .... but the best solution in
general is a system with a minimum of Internet services (open ports) to a
Hacker could exploit.
Greets,
Felix Huber
Webtopia
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